AWAKI, Hisamitsu

Faculty
Graduate School of Science and Engineering Mathematics Physics and Earth Sciences
PositionProfessor
Mail
HomepageURL
Birthday
Last Updated :2018/05/25

Researcher Profile and Settings

Education

  •  - 1991 , Nagoya University, Graduate School, Division of Natural Science
  •  - 1986 , Kanazawa University, Faculty of Science

Association Memberships

  • The American Astronomical Society

Committee Memberships

  •   2007  - 2008 , The American Astronomical Society
  •   2004  - 2005 , The American Astronomical Society
  •   2002  - 2003 , The American Astronomical Society

Research Activities

Research Areas

  • Astronomy, Astronomy

Research Interests

    X-ray Astronomy

Published Papers

  • Large scale extended X-ray emission from the Virgo cluster of galaxies
    S. Takano, H. Awaki, K. Koyama, H. Kunieda, Y. Tawara, S. Yamauchi, M. Makishima, and T. Ohashi, Nature, 340, (6231) 289 - 290, DOI
  • Intense 6.7-keV iron line emission from the Galactic Centre
    K. Koyama, H. Awaki, H. Kunieda, S. Takano, Y. Tawara, S. Yamauchi, I. Hatsukade, and F. Nagase, Nature, 339, (6226) 603 - 605, DOI
  • X-ray outburst of the quasar 3C 279
    F. Makino, T. Kii, K. Hayashida, H. Inoue, Y. Tanaka, T. Ohashi, K. Makishima, H. Awaki, K. Koyama, M.J.L. Turner, and O.R. Williams, Astrophysical Journal Lett, 347
  • An intense iron line emission from NGC 1068
    6. K. Koyama, H. Inoue, Y. Tanaka, H. Awaki, S. Takano, T. Ohashi, and M. Matsuoka, Publ. Astron. Soc. Jpn., 41
  • X-ray spectral study of M31 with Ginga
    K. Makishima, T. Ohashi, K. Hayashida, H. Inoue, K. Koyama, S. Takano, Y. Tanaka, A.Yoshida, M.J.L. Turner, H.D. Thomas, G.C. Stewart, R.O. Williams, H. Awaki, and Y. Tawara, Publ. Astron. Soc. Jpn., 41
  • Discovery of 413.9-second X-ray pulsation from X 1722-36
    Y. Tawara, S. Yamauchi, H. Awaki, T. Kii, K. Koyama, and F. Nagase, Publ. Astron. Soc. Jpn., 41
  • The origin and behavior of the background in the Large Area Counter on Ginga and its effect on the sensitivity
    K. Hayashida, H. Inoue, K. Koyama, H. Awaki, S. Takano, Y. Tawara, O.R. Williams, M. Denby, G.C. Stewart, M.J.L. Turner, K. Makishima, and T. Ohashi, Publ. Astron. Soc. Jpn., 41
  • The Large Area Counter on Ginga
    M.J.L. Turner, H.D. Thomas, B.E. Patchett, D.H. Reading, K. Makishima, T. Ohashi, T. Dotani, K. Hayashida, H. Inoue, H. Kondo, K. Koyama, K. Mitsuda, Y. Ogawara, S. Takano, H. Awaki, Y. Tawara, and N. Nakamura, Publ. Astron. Soc. Jpn., 41
  • Ginga observations of X-ray from the Seyfert 1 galaxy Markarian 509
    K. P. Singh, N. J. Westergaard, H. W. Schnopper, H. Awaki, and Y. Tawara, Astrophysical Journal, 363
  • Rapid variability of the iron fluorescence line from Seyfert 1 galaxy NGC 6814
    H. Kunieda, T. J. Turner, H. Awaki, K. Koyama, R. Mushotzky, and Y. Tsusaka, Nature, 345
  • X-ray evidence of an obscured nucleus in the type 2 Seyfert galaxy, Mkn3
    H. Awaki, K. Koyama, H. Kunieda, and Y. Tawara, Nature, 346, (6284) 544 - 545, DOI
  • Discovery of large absorption in the X-ray spectrum of Seyfert 2 galaxy NGC 4507
    H. Awaki, K. Koyama, H. Kunieda, and Y. Tawara, Publ. Astron. Soc. Japan letters, 43
  • X-ray observations of the broad line radio galaxy 3C382: variability, an iron line and soft X-ray emission
    J. S. Kaastra, H. Kunieda, and H. Awaki, Astron. & Astrophys., 242
  • X-ray continuum and evidence for an iron emission line from the quasar E1821+643
    T. Kii, O. R. Williams, T. Ohashi, H. Awaki, K. Hayashida, H. Inoue, H. Kondo, K. Koyama, F. Makino, K. Makishima, R. D. Saxton, G. C. Stewart, S. Takano, Y. Tanaka, and M. J. L. Turner, Astrophys. J., 367
  • Ginga observations of three X-ray luminous early-type galaxies : NGC4472, NGC4636, and NGC3998
    H. Awaki, K. Koyama, H. Kunieda, T. Ohashi, S. Takano, and Y. Tawara, Astrophysical Journal, (366)
  • X-ray implications of a Unified Model of Seyfert Galaxies
    H. Awaki, K. Koyama, H. Inoue, and J. P. Halpern, Publications of the Astronomical Society of Japan, (43)
  • Hard X-ray emission from a narrow-line radio galaxy IC5063 and obscured active nucleus
    K. Koyama, H. Awaki, K. Iwasawa, and M.J. Ward, Astrophys. J. letter, 399
  • Thirty-meter X-ray pencil beam line at the Institute of Space and Astronautical Science
    H. Kunieda, Y. Tsusaka, H. Suzuki, Y. Ogasaka, H. Awaki, Y. Tawara, K. Yamashita, T. Yamazaki, M. Itoh, T. Kii, F. Makino,Y. Ogawara, H. Tsunemi, K. Hayashida, S. Nomoto, M. Wada, E. Miyata, and I. Hatsukade, Jpn. J. Appl. Phys. 1, Regul. Pap. Short Notes, 32
  • Simultaneous Ginga and IUE observations of the Seyfert galaxy, NGC3516
    M. Kolman, J.P. Halpern, C. Martin, H. Awaki, and K. Koyama, Astrophysical Journal, 403
  • X-ray evidence for the Seyfert activity buried in an infrared galaxy, NGC4945
    K. Iwasawa, K. Koyama, H. Awaki, H. Kunieda, K. Makishima, T. Tsuru, T. Ohashi, and N.Nakai, Astrophysical Journal, 409
  • Possible X-ray Emission from a New Southern QSO HE1029-1401
    K. Iwasawa, H. Kunieda, H. Awaki, and K. Koyama, Publications of the Astronomical Society of Japan, 45
  • An ASCA Observation of the Seyfert 2 Galaxy Markarian 3
    K. Iwasawa, T. Yaqoob, H. Awaki, Y. Ogasaka, Publications of the Astronomical Society of Japan, 46
  • ASCA Observations of NGC 1068
    S. Ueno, R.F.Mushotzky, K. Koyama, K. Iwasawa, H. Awaki, and I. Hayashi, Publications of the Astronomical Society of Japan, 46
  • ASCA Observation of Three Bright Early-Type Galaxies ; NGC4472, NGC4406, and NGC4636
    H. Awaki, R. Mushotzky, T. Tsuru, A.C. Fabian, Y. Fukazawa, M. Loewenstein, K. Makishima, H. Matsumoto, K. Matsushita, T. Mihara, T. Ohashi, G.R. Ricker, P.J. Serlemitsos, Y. Tsusaka, and T. Yamazaki, Publications of the Astronomical Society of Japan, 46
  • Evidence for X-ray flux and spectral modulation by obsorption in NGC6814.(]G0001[).The nature of the mos rapid variability
    K. Leighly, H. Kunieda, Y. Tsusaka, H. Awaki, and S. Tsuruta, Astrophysical Journal, 421, (1)
  • Detections of hard X-ray emissions from bright early-type galaxies with ASCA
    K. Matsushita, K. Makishima, H. Awaki, C.R. Canizares, A.C. Fabian, Y. Fukazawa, M. Loewenstein, H. Matsumoto, T. Mihara, R.F. Mushotzky, T. Ohashi, G.R. Ricker, P.J. Serlemitsos, T. Tsuru, Y. Tsusaka, and T. Yamazaki, Astrophysical Journal, 436, (1)
  • Discovery and implications of very low metal abundarus in NGC1404 and NGC4374
    M. Loewenstein, R.F. Mushotzky, T. Tamura, Y. Ikebe, K. Makishima, K. Matsushita, H. Awaki, and P.J. Serlemitsos, Astrophysical Journal, 436, (1)
  • ASCA observation of NGC4636 : dark matter and metallicity gradient
    R.F. Mushotzky, M. Loewenstein, H. Awaki, K. Makishima, K. Matsushita, and H. Matsumoto, Astrophysical Journal, 436, (1)
  • Characterization of the Advanced Satellite for Cosmology and Astrophysics X-ray telescope: preflight calibration and ray tracing
    Y. Tsusaka, H. Suzuki, K. Yamashita, H. Kunieda, Y. Tawara, Y. Ogasaka, Y. Uchibori, H. Honda, M. Itoh, H. Awaki, H. Tsunemi, K. Hayashida, S. Nomoto, M. Wada, E. Miyata, P.J. Serlemitsos, L. Jalota, and Soong Yang, Appl. Opt., 34, (22) 4848 - 4856, DOI
  • The X-ray Telescope on board ASCA
    P.J. Serlemitsos, L. Jalota, Yang Soong, H. Kunieda, Y. Tawara, Y. Tsusaka, H. Suzuki, Y. Sakima, T. Yamazaki, H. Yoshioka, A. Furuzawa, K. Yamashita, H. Awaki, M. Itoh, Y. Ogasaka, H. Honda, and Y. Uchibori, Publication of Astronomical Society of Japan, 47, (1)
  • An IRAS-selected Seyfert 2 galaxy IRAS18325-5926 : The X-ray source and nuclear obscuration
    K. Iwasawa, H. Kunieda, Y. Tawara, H. Awaki, K. Koyama, T. Murayama, Y. Taniguchi, Astronomical Journal, 110
  • Discovery of an Abundance Gradient in the Central Region of the Virgo Cluster
    H. Matsumoto, K. Koyama, H. Awaki, T. Tsuru, M. Loewenstein, and K. Matsushita, Publication of Astronomical Society of Japan, 48, (2)
  • X-ray Observations of NGC2110 with Ginga and ASCA
    I. Hayashi, K. Koyama, H. Awaki, S. Ueno, and S. Yamauchi, Publication of Astronomical Society of Japan, 48, (2)
  • Detection of Hard X-ray Emission from Mkn463
    S. Ueno, K. Koyama,, H. Awaki, I. Hayashi and P. Blanco, Publication of Astronomical Society of Japan, 48
  • ASCA Observation of NGC1808
    H. Awaki, S. Ueno, K. Koyama, T. Tsuru and K. Iwasawa, Publication of Astronomical Society of Japan, 48
  • ASCA PV Observations of the Seyfert 2 galaxy, NGC4388 : the obscured nucleus and its X-ray emission
    K. Iwasawa, A.C. Fabian, S. Ueno, H. Awaki, Y. Fukazawa, K. Matsushita, and K. Makishima, Monthy Notice Royal Astronomical Society, 285
  • X-ray property of Early-type galaxies as observed with ASCA
    H. Matsumoto, K. Koyama, H. Awaki, T. Tsuru, M. Loewenstein, and K. Matsushita, Astrophysical Journal, 482, (1) 133 - 142, DOI
  • Radiation Damage on X-Ray CCDs and Restration Technique for Space Astronomy
    H. Tomida, H. Matsumoto, M. Ozaki, Y. Tazawa, H. Awaki, T. Tsuru, K. Koyama, H. Tsunemi, and K. Yamamoto, Publications of the Astronomical Society of Japan, 49
  • X-ray Imaging Spectroscopy of Stephan's Quintet and Seyfert 2 galaxy NGC7319
    H. Awaki, K. Koyama, H. Matsumoto, H. Tomida, T. Tsuru, and S. Ueno, Publications of the Astronomical Society of Japan, 49
  • Wide-Band X-ray Spectra and Images of the Starburst Galaxy M82
    T. Tsuru, H. Awaki, K. Koyama, and A. Ptak, Publications of the Astonomical Society of Japan, 49
  • On the nature of the X-ray absorption in the Seyfert 2 galaxy NGC 4507
    A. Comastri, C. Vignali, M. Cappi, G. Matt, R. Audano, H. Awaki, and S. Ueno, Monthly Notice Royal Astronomical Society., 295
  • NGC7582 : The Prototype Narrow-Line X-ray Galaxy
    J.F. Schachter, F. Fiore, M. Elvis, S. Mathur, A.S. Wilson, J.A. Morse, H. Awaki, and K. Iwasawa, Astrophysical Joural, 503
  • The Hardest X-ray Source in the ASCA Large Sky Survey. Discovery of a New Type2 Seyfert
    M. Sakano, K. Koyama, T. Tsuru, H. Awaki, Y. Ueda and T. Takahashi, Astrophysical Journal, 505, (1) 129 - 133, DOI
  • Broad Band X-ray Observations of Seyfert 2 Galaxy NGC 5506
    T. Wang, T. Mihara, C. Otani, M. Matsuoka, and H. Awaki, Astrophysical Journal, 515
  • An RXTE Observation of NGC6300 ; A New Bright Compton Reflection Dominated Seyfert 2 Galaxy
    K. M. Leighly, J. Halpern, H. Awaki, M. Cappi, S. Ueno and J. Siebert, Astrophysical Journal, 522
  • The hard X-ray response of the XIS-CCD for Astro-E ; qualification of the X-ray CCD detector
    NISHIUCHI M, KOYAMA K, AWAKI H, TSURU T, SAKANO M, HAMAGUCHI K, TSUNEMI H, DOTANI T, RICKER G, Nuclear Instruments & Methods in Physics Research, 436, (1/2) 79 - 84, DOI
  • Development of a fast56- readout system of an X-ray CCD
    AWAKI H, HAMAGUCHI K, KOYAMA K, TOMIDA H, TSURU T, Nuclear Instruments & Methods in Physics Research, 436, (1/2) 170 - 173, DOI
  • X-ray CCD calibration system using fluorescent lines
    K. Hamaguchi, Y. Maeda, H. Matsumoto, M. Nishiuchi, H. Tomida, K. Koyama, H. Awaki, and T.G. Tsuru, NIMPA, 450, (2/3) 360 - 364, DOI
  • X-ray Emission from Seyfert 2 Galaxies with Optical Polarized Broad Lines
    H. Awaki, S. Ueno, Y. Taniguchi, and K.A. Weaver, Astrophysical Journal, 542
  • A Search for Broad Infrared Recombination Lines in NGC1068
    D. Lutz, R. Genzel, E. Sturm, L. Tacconi, E. Wieprecht, T. Alexander, H. Netzer, A. Sternberg, A.F.M. Moorwood, R.A.E. Fosbury, K. Fricke, S.J. Wagner, A. Quirrenbach, H.Awaki, and K.Y.Lo, Astrophysical Journal, 530, 733 - 737
  • Discovery of a Luminous, Variable, Off-Center Source in the Nucleus of M82 with the Chandra High-Resolution Camera
    H. Matsumoto, T.G. Tsuru, K. Koyama, H. Awaki, C.R. Canizares, N. Kawai, S. Matsushita, and R. Kawabe, Astrophysical Journal Letter, 547, (1) 25 - 28, DOI
  • Estimation of Central Black Hole Masses in Low-luminosity Active Galactic Nuclei
    H. Awaki, Y. Terashima, K. Hayashida, and M. Sakano, Publication of the Astronomical Society of Japan, (53)
  • X-ray Emission from a Merger Remnant, NGC7252 (the "Atoms-for-Peace" galaxy)
    H. Awaki, H. Matsumoto, H. Tomida, Astrophysical Journal, 567, (2) 892 - 895, DOI
  • Extreme X-Ray Iron Lines in Active Galactic Nuclei
    N.A. Levenson, J.H. Krolik, P.T. Zycki, T.M. Heckma, K.A. Weaver, H. Awaki, and Y. Terashima, Astrophysical Journal, 573, (2) 81 - 84, DOI
  • A novel method to estimate the thickness of the deplation layer of an X-ray CCD
    H. Awaki, K. Tachibana, Y. Tamai, K. Yamamoto, S. Kitamoto, and M. Tsujimoto, Nuclear Instruments & Methods in Physics Research, 495, (3) 232 - 239, DOI
  • ASCA observation of Unusually X-ray Hard Radio Quiet QSO Kaz102
    T. Miyaji, Y. Ishiaki, Y. Ueda, Y. Ogasaka, H. Awaki, K. Hayashida, Publications of the Astronomical Society of Japan, 55
  • Discovery of Bright Variable X-ray Sources in NGC1569 with Chandra
    K. Heike, H. Awaki, Y. Misao, K. Hayashida, and K.A.Weaver, The Astrophysical Journal, 591, (2) 99 - 102, DOI
  • An XMM-Newton Observation of the Seyfert 2 Galaxy NGC 6300. I. The Nucleus
    C. Matsumoto, A. Nava, L.A. Maddox, K.M. Leighly, D. Grupe, H. Awaki, and S. Ueno, Astrophys. J., 617, (2) 930 - 938, DOI
  • Accretion and Outflow in the Active Galactic Nucleus and Starburst of NGC 5135
    N.A. Levenson, K.A. Weaver, T.M. Heckman, H. Awaki, and Y. Terashima, Astrophys. J., 602, (1) 135 - 147, DOI
  • Revealing the High Energy Emission from the Obscured Seyfert Galaxy MCG-5-23-16 with Suzaku
    J. N. Reeves, H. Awaki, G.C. Deangan, A.C. Fabian, Y. Fukazawa, L. Gallo, R. Griffiths, H. Inoue, H. Kunieda, A. Markowitz, G. Minitti, T. Mizuno, R. Mushotzky, T. Okajima, A. Ptak, T. Takahashi, Y. Terashima, M. Ushio, S. Watanabe, T. Yamasaki, M. Yamauchi, and T. Yaqoob, Publ. Astron. Soc. Japan,, 59, 301 - 314
  • A Variability Study of the Seyfert 2 Galaxy NGC 6300 with XMM-Newton
    H. Awaki, H. Murakami, K.M. Leighly, C. Matsumoto, K. Hayashida, and D. Grupe, Astrophys. J., 632, (2) 793 - 798, DOI
  • The development of a back-illuminated supprtless CCD for SXI onboard the NeXT satellite
    T.G. Tsuru, S. Takagi, H. Matsumoto, T. Inui, K. Koyama, H. Tsunemi, K. Hayashida, E. Miyata, M. Ozaki, H. Awaki, S. Kitamoto, and T. Kohmura, NIMPA, 541, (1/2) 392 - 397, DOI
  • X-ray imaging spectrometers (XIS) of Astro-E2
    H. Matsumoto, K. Koyama, T.G. Tsuru, H. Nakajima, H. Yamaguch, H. Tsunemi, K. Hayashida, E. Miyata, K. Torii, T. Dotani, M. Ozaki, H. Murakami, N. Anabuki, S. Kitamoaoto, H. Awaki, T. Kohmura, H. Katayama, A. Bamba, M.W. Bautz, J.P. Doty, G.R. Ricker, R.F. Foster, G.Y. Prigozhin, S.E. Kissel, B.E. Burke, A.D. Pillsbury, and B. Lamarr, NIMPA, 541, (1/2) 357 - 364, DOI
  • Deconstructing NGC 7130
    N.A. Levenson, K.A. Weaver, T.M. Heckman, H. Awaki, and Y. Terashima, Astrophys. J., 618, (1) 167 - 177, DOI
  • Variability study of Seyfert 2 galaxies with XMM-Newton
    Awaki Hisamitsu, Murakami Hirokatsu, Ogawa Yuu, Leighly Karen M., ASTROPHYSICAL JOURNAL, 645, (2) 928 - 939, 07 10 , DOI
  • X-Ray Study of Discrete Sources in NGC 1808 with Chandra
    K. Heike and H. Awaki, Publ. Astron. Soc. Japan,, 59, 531 - 540
  • X-Ray Spectral Study of the Extended Emission, `the Cap', Located 11.6kpc above the Disk of M82
    T.G. Tsuru, M. Ozawa, Y. Hyodo, H. Matsumoto, K. Koyama, H. Awaki, R. Fujimoto, R. Griffiths, C. Kilbourne, K. Matsushita, K. Mistuda, A. Ptak, P. Ranalli, and N. Yamasaki, Publ. Astron. Soc. Japan letters, 59, 269 - 282
  • X-Ray Imaging Spectrometer (XIS) on Board Suzaku
    K. Koyama et al., including H. Awaki, Publ.Astron. Soc. Japan, 59, 22 - 33
  • The X-Ray Observatory Suzaku
    K. Mitsuda et al., including H. Awaki, Publ. Astron. Soc. Japan letters, 59, 1 - 7
  • The Suzaku Observation of the Nucleus of the Radio-Loud Active Galaxy Centaurus A: Constraints on Abundances of the Accreting Material
    A. Markowitz, T. Takahashi, S. Watanabe, K. Nakazawa, Y. Fukazawa, M. Kokubun, K. Makishima, H. Awaki, A. Bamba, N. Isobe, J. Kataoka, G. Madejski, R. Mushotzky, T. Okajima, A. Ptak, J. N. Reeves, Y. Ueda, T. Yamasaki, T. Yaqoob, Astrophys.J.665:209-224,2007, 665, (1) 209 - 224, 04 28 , DOI
  • Suzaku Observation of HCG 62: Temperature, Abundance, and Extended Hard X-Ray Emission Profiles
    K. Tokoi, K. Sato, Y. Ishisaki, T. Ohashi, N. Yamasaki, K. Nakazawa, K. Matsushita, Y. Fukazawa, A. Hoshino, T. Tamura, C. Egawa, N. Kawano, N. Ota, N. Isobe, M. Kawaharada, H. Awaki, and J.P. Hughes, Publ. Astron. Soc. Japan, 60, S317 - S332
  • Wide-Band Spectroscopy of the Compton Thick Seyfert2 Galaxy Markarian 3 with Suzaku
    H. Awaki, N. Anabuki, Y. Fukazawa, L.C. Gallo, S. Ikeda, N. Isobe, T. Itoh, H. Kunieda, K. Makishima, A. Markoeitz, G. Miniutti, T. Mizuno, T. Okajima, A. Ptak, J.N. Reeves, T. Tanakahashi, Y. Terashima, and T. Yaqoob, Publ. Astron. Soc. Japan,, 60, S293 - S306
  • The Suzaku Observation of NGC3516: Complex Absorption and the Broad and Narrow FeK Lines
    A. Markowitz, J. N. Reeves, G. Miniutti, P. Serlemitsos, H. Kunieda, T. Yaqoob, A.C. Fabian, Y. Fukazawa, R. Mushotzky, T. Okajima, L.C. Gallo, H. Awaki, and R.E. Griffiths, Publ. Astron. Soc. Japan,, 60, S277 - S292
  • Detailed Hard X-Ray Measurements of Nuclear Emission from the Seyfert2 Galaxy NGC4388 with Suzaku
    H. Shirai, Y. Fukazawa, M. Sasada, M. Ohno, D. YOnetoku, S. Yokota, R. Fujimoto, T. Murakami, Y. Terashima, H. Awaki, S. Ikeda, M. Ozawa, T.G.Tsuru, Publ. Astron. Soc. Japan,, 60, S263 - S276
  • Suzaku Wide-Band X-Ray Spectroscopy of the Seyfert2 AGN in NGC 4945
    T. Itoh, C. Done, K. Makishima, G. Madejeski, H. Awaki, P. Gandhi, N. Isobe, G.C. Dewangan, R.E. Griffthis, N. Anabuki, T. Okajima, J. N. Reeves, T. Takahashi, Y. Ueda, S. Eguchi, and T. Yaqoob, Publ. Astron. Soc. Japan,, 60, S251 - S262
  • A New Sample of Buried Active Galactic Nuclei Selected from the Second XMM-Newton Serendipitous Source Catalogue
    K. Noguchi, Y. Terashima, and H. Awaki, Astrophys. J., 705, (1) 454 - 467, DOI
  • Suzaku observation of the Phoenix galaxy
    G. Matt, S. Bianchi, H. Awaki, A. Comastri, M. Guainazzi, K. Iwasawa, E. Jimenez-Bailon, and F. Nicastri, Astronomy and Astrophysics, 496, (3) 653 - 658, DOI
  • Study on X-Ray Spectra of Obscured Active Galactic Nuclei Based on Monte Carlo Simulation—An Interpretation of Observed Wide-Band Spectra
    S. Ikeda, H. Awaki, and Y. Terashima, Astrophys. J., 692, (1) 608 - 617, DOI
  • Detection of Hard X-Rays from the Compton-Thick Seyfert 2 Galaxy NGC 2273 with Suzaku
    H. Awaki, Y. Terashima, Y. Higaki, and Y. Fukazawa, Publ.Astron. Soc. Japan, 61, S317 - S325
  • Suzaku Observation of GRS 1915+105: Evolution of Accretion Disk Structure during Limit-cycle Oscillation
    Y. Ueda, K. Honda, H. Takahashi, C. Done, H. Shirai, Y. Fukazawa, K. Yamaoka, S. Naik, H.Awaki, K. Ebisawa, J. Rodriguez, and S. Chaty, Astrophys. J., 713, (1,Pt.1) 257 - 268, DOI
  • Scattered X-rays in Obscured Active Galactic Nuclei and Their Implications for Geometrical Structure and Evolution
    K. Noguchi, Y. Terashima, Y. Ishino, Y. Hashimoto, M. Koss, Y. Ueda, and H. Awaki, Astrophys. J., 711, (1,Pt.1) 144 - 156, DOI
  • A New Sample of Candidate Intermediate-mass Black Holes Selected by X-Ray Variability
    N. Kamizasa, Y. Terashima, and H. Awaki, Astrophysical Journal, 751, (1,Pt.1) 1 - 39, DOI
  • Suzaku View of the Swift/BAT Active Galactic Nuclei. III. Application of Numerical Torus Models to Two Nearly Compton Thick Active Galactic Nuclei (NGC 612 and NGC 3081)
    S. Eguchi, Y. Ueda, H. Awaki, A. James, Y. Terashima, and R. Mushotzky, Astrophys. J., 729, (1,Pt.1) 1 - 31, DOI
  • A Candidate Active Galactic Nucleus with a Pure Soft Thermal X-Ray Spectrum
    Y. Terashima, N. Kamizasa, H. Awaki, A. Kubota, and Y. Ueda, Astrophys. J., 753, (2,Pt.1) id. 154 - 154, DOI
  • On the role of the Γ - λEdd relation on the X-ray Baldwin effect in active galactic nuclei
    C. Ricci, S. Paltani, Y. Ueda, and H. Awaki, Monthly Notices of the Royal Astronomical Society, 435, (3) 1840 - 1851, DOI
  • Luminosity-dependent unification of active galactic nuclei and the X-ray Baldwin effect
    C. Ricci, S. Paltani, H. Awaki, P.-o.Petrucci, Y. Ueda, and M. Brightman, Astronomy & Astrophysics, 553, DOI
  • Hard x-ray telescopes to be onboard ASTRO-H
    H. Awaki et al., Applied Optics, 53, (32) 7664 - 7676, DOI
  • Iron Kα emission in type-I and type-II active galactic nuclei
    C. Ricci, Y. Ueda, S. Paltani, K. Ichikawa, P. Gandhi, and H. Awaki, Monthly Notices of the Royal Astronomical Society, 441, (4) 3622 - 3633, DOI
  • The narrow Fe Kα line and the molecular torus in active galactic nuclei: an IR/X-ray view
    C. Ricci, Y. Ueda, K. Ichikawa, S. Paltani, R. Boissay, P. Gandhi, M. Stalevski, and H. Awaki, Astronomy & Astrophysics, 567, DOI
  • A New Sample of Obscured AGNs Selected from the XMM-Newton and AKARI Surveys
    Y. Terashima, Y. Hirata, H. Awaki, S. Oyabu, P. Gandhi, Y. Toba, and H. Matsuhara, Astrophys. J., 814, (1) , DOI
  • Studies of the moisture absorption of thin carbon fiber reinforced plastic substrates for x-ray mirrors
    Sugita Satoshi, Awaki Hisamitsu, Kurihara Daichi, Yoshioka Kenya, Nomura Mizuki, Ogi Keiji, Tomita Yuuki, Mita Tomoki, Kunieda Hideyo, Matsumoto Hironori, Miyazawa Takuya, Mitsuishi Ikuyuki, Iwase Toshihiro, Maejima Masato, Shima Naoki, Ishikawa Takashi, Hamada Takayoshi, Ishida Naoki, Akiyama Hiromichi, Kishimoto Kazuaki, Utsunomiya Shin, Kamiya Tomohiro, JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS, 1, (3) , 07 , DOI
  • The quiescent intracluster medium in the core of the Perseus cluster
    Hitomi Collaboration (including H. Awaki), Nature, 535, (7610) , DOI
  • Studies of print-through and reflectivity of x-ray mirrors using thin carbon-fiber-reinforced plastic
    S. Sugita, H. Awaki, K. Yoshioka, K. Ogi, H. Kunieda, H. Matsumoto, T. Miyazawa, I. Mitsuishi, T. Iwase, S. Saji, S. Tachibana, M. Maejima, S. Yoshikawa, N. Shima, T. Ishikawa, T. Hamada, N. Ishida, H. Akiyama, K. Kishimoto, S. Ustunomiya, T. Kamiya, K. Uesugi, and Y. Suzuki, Journal of Astronomical Telescopes, Instruments, and Systems, 2, (1) , DOI
  • The nature of the torus in the heavily obscured AGN Markarian 3: an X-ray study
    M. Guainazzi, G. Risaliti, H. Awaki, P. Arevalo, F. E. Bauer, S. Bianchi, S. E. Boggs, W. N. Brandt, M. Brightman, F. E. Christensen, W. W. Craig, K. Forster, C. J. Hailey, F. Harrison, M. Koss, A. Longinotti, C. Markwardt, A. Marinucci, G. Matt, C. S. Reynolds, C. Ricci, D. Stern, J. Svoboda, D. Walton, W. Zhang, Monthly Notices of the Royal Astronomical Society, 460, (2) 1954 - 1969, 05 , DOI
  • Hitomi Constraints on the 3.5 keV Line in the Perseus Galaxy Cluster
    Hitomi collaboration(including H. Awaki), Astrophysical Journal Letters, 837
  • Solar abundance ratios of the iron-peak elements in the Perseus cluster
    Hitomi collaboration (including AWAKI Hisamitsu), Nature, 551, 478 - 480, 11
  • Supermirror design for Hard X-Ray Telescopes on-board Hitomi (ASTRO-H)
    K. Tamura et al. (including H.Awaki), Journal of Astronomical Telescopes, Instruments, and Systems, 4, (1) 011209-1 - 011209-8, 01
  • On-ground calibration of the Hitomi Hard X-ray Telescopes
    H. Mori, T. Miyazawa, H. Awaki, et al., Journal of Astronomical Telescopes, Instruments, and Systems, 4, (1) 011210-1 - 011210-22, 01
  • Inorbit performance of the Hard X-ray Telescope (HXT) on board the Hitomi (ASTRO-H) satellite
    H. Matsumoto, H. Awaki et al., Journal of Astronomical Telescopes, Instruments, and Systems, 4, (1) 011212-1 - 011212-8, 01
  • Suzaku Observations of Heavily Obscured (Compton-thick) Active Galactic Nuclei Selected by the Swift/BAT Hard X-Ray Survey
    A. Tanimoto, Y. Ueda, T. Kawamura, C. Ricci, H. Awaki, Y. Terashima, The Astrophysical Journal, 853, (2) 146-1 - 146-26, 02
  • Hitomi (ASTRO-H) X-ray Astronomy Satellite
    T. Takahashi et al. (including H. Awaki), Journal of Astronomical Telescopes, Instruments, and Systems, 4, (2) 021402-1 - 021402-13, 04

Misc

  • Atmospheric gas dynamics in the Perseus cluster observed with Hitomi
    Hitomi Collaboration, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steven W. Allen, Lorella Angelini, Marc Audard, Hisamitsu Awaki, Magnus Axelsson, Aya Bamba, Marshall W. Bautz, Roger Blandford, Laura W. Brenneman, Gregory V. Brown, Esra Bulbul, Edward M. Cackett, Rebecca E. A. Canning, Maria Chernyakova, Meng P. Chiao, Paolo S. Coppi, Elisa Costantini, Jelle de Plaa, Cor P. de Vries, Jan-Willem den Herder, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan E. Eckart, Teruaki Enoto, Yuichiro Ezoe, Andrew C. Fabian, Carlo Ferrigno, Adam R. Foster, Ryuichi Fujimoto, Yasushi Fukazawa, Akihiro Furuzawa, Massimiliano Galeazzi, Luigi C. Gallo, Poshak Gandhi, Margherita Giustini, Andrea Goldwurm, Liyi Gu, Matteo Guainazzi, Yoshito Haba, Kouichi Hagino, Kenji Hamaguchi, Ilana M. Harrus, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Tasuku Hayashi, Kiyoshi Hayashida, Junko S. Hiraga, Ann Hornschemeier, Akio Hoshino, John P. Hughes, Yuto Ichinohe, Ryo Iizuka, Hajime Inoue, Shota Inoue, Yoshiyuki Inoue, Manabu Ishida, Kumi Ishikawa, Yoshitaka Ishisaki, Masachika Iwai, Jelle Kaastra, Tim Kallman, Tsuneyoshi Kamae, Jun Kataoka, Satoru Katsuda, Nobuyuki Kawai, Richard L. Kelley, Caroline A. Kilbourne, Takao Kitaguchi, Shunji Kitamoto, Tetsu Kitayama, Takayoshi Kohmura, Motohide Kokubun, Katsuji Koyama, Shu Koyama, Peter Kretschmar, Hans A. Krimm, Aya Kubota, Hideyo Kunieda, Philippe Laurent, Shiu-Hang Lee, Maurice A. Leutenegger, Olivier Limousin, Michael Loewenstein, Knox S. Long, David Lumb, Greg Madejski, Yoshitomo Maeda, Daniel Maier, Kazuo Makishima, Maxim Markevitch, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Brian R. McNamara, Missagh Mehdipour, Eric D. Miller, Jon M. Miller, Shin Mineshige, Kazuhisa Mitsuda, Ikuyuki Mitsuishi, Takuya Miyazawa, Tsunefumi Mizuno, Hideyuki Mori, Koji Mori, Koji Mukai, Hiroshi Murakami, Richard F. Mushotzky, Takao Nakagawa, Hiroshi Nakajima, Takeshi Nakamori, Shinya Nakashima, Kazuhiro Nakazawa, Kumiko K. Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Takaya Ohashi, Masanori Ohno, Takashi Okajima, Naomi Ota, Masanobu Ozaki, Frits Paerels, Stéphane Paltani, Robert Petre, Ciro Pinto, Frederick S. Porter, Katja Pottschmidt, Christopher S. Reynolds, Samar Safi-Harb, Shinya Saito, Kazuhiro Sakai, Toru Sasaki, Goro Sato, Kosuke Sato, Rie Sato, Makoto Sawada, Norbert Schartel, Peter J. Serlemtsos, Hiromi Seta, Megumi Shidatsu, Aurora Simionescu, Randall K. Smith, Yang Soong, Łukasz Stawarz, Yasuharu Sugawara, Satoshi Sugita, Andrew Szymkowiak, Hiroyasu Tajima, Hiromitsu Takahashi, Tadayuki Takahashi, Shin'ichiro Takeda, Yoh Takei, Toru Tamagawa, Takayuki Tamura, Keigo Tanaka, Takaaki Tanaka, Yasuo Tanaka, Yasuyuki T. Tanaka, Makoto S. Tashiro, Yuzuru Tawara, Yukikatsu Terada, Yuichi Terashima, Francesco Tombesi, Hiroshi Tomida, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Go Tsuru, Hiroyuki Uchida, Hideki Uchiyama, Yasunobu Uchiyama, Shutaro Ueda, Yoshihiro Ueda, Shin'ichiro Uno, C. Megan Urry, Eugenio Ursino, Qian H. S. Wang, Shin Watanabe, Norbert Werner, Dan R. Wilkins, Brian J. Williams, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Y. Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Yoichi Yatsu, Daisuke Yonetoku, Irina Zhuravleva, Abderahmen Zoghbi,   2017 11 , Extending the earlier measurements reported in Hitomi collaboration (2016, Nature, 535, 117), we examine the atmospheric gas motions within the central 100~kpc of the Perseus cluster using observations obtained with the Hitomi satellite. After correcting for the point spread function of the telescope and using optically thin emission lines, we find that the line-of-sight velocity dispersion of the hot gas is remarkably low and mostly uniform. The velocity dispersion reaches maxima of approximately 200~km~s$^{-1}$ toward the central active galactic nucleus (AGN) and toward the AGN inflated north-western `ghost' bubble. Elsewhere within the observed region, the velocity dispersion appears constant around 100~km~s$^{-1}$. We also detect a velocity gradient with a 100~km~s$^{-1}$ amplitude across the cluster core, consistent with large-scale sloshing of the core gas. If the observed gas motions are isotropic, the kinetic pressure support is less than 10\% of the thermal pressure support in the cluster core. The well-resolved optically thin emission lines have Gaussian shapes, indicating that the turbulent driving scale is likely below 100~kpc, which is consistent with the size of the AGN jet inflated bubbles. We also report the first measurement of the ion temperature in the intracluster medium, which we find to be consistent with the electron temperature. In addition, we present a new measurement of the redshift to the brightest cluster galaxy NGC~1275.
  • Hitomi Observation of Radio Galaxy NGC 1275: The First X-ray Microcalorimeter Spectroscopy of Fe-Kα Line Emission from an Active Galactic Nucleus
    Hitomi Collaboration, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steven W. Allen, Lorella Angelini, Marc Audard, Hisamitsu Awaki, Magnus Axelsson, Aya Bamba, Marshall W. Bautz, Roger Blandford, Laura W. Brenneman, Gregory V. Brown, Esra Bulbul, Edward M. Cackett, Maria Chernyakova, Meng P. Chiao, Paolo S. Coppi, Elisa Costantini, Jelle de Plaa, Cor P. de Vries, Jan-Willem den Herder, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan E. Eckart, Teruaki Enoto, Yuichiro Ezoe, Andrew C. Fabian, Carlo Ferrigno, Adam R. Foster, Ryuichi Fujimoto, Yasushi Fukazawa, Akihiro Furuzawa, Massimiliano Galeazzi, Luigi C. Gallo, Poshak Gandhi, Margherita Giustini, Andrea Goldwurm, Liyi Gu, Matteo Guainazzi, Yoshito Haba, Kouichi Hagino, Kenji Hamaguchi, Ilana M. Harrus, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Kiyoshi Hayashida, Junko S. Hiraga, Ann Hornschemeier, Akio Hoshino, John P. Hughes, Yuto Ichinohe, Ryo Iizuka, Hajime Inoue, Yoshiyuki Inoue, Manabu Ishida, Kumi Ishikawa, Yoshitaka Ishisaki, Masachika Iwai, Jelle Kaastra, Tim Kallman, Tsuneyoshi Kamae, Jun Kataoka, Satoru Katsuda, Nobuyuki Kawai, Richard L. Kelley, Caroline A. Kilbourne, Takao Kitaguchi, Shunji Kitamoto, Tetsu Kitayama, Takayoshi Kohmura, Motohide Kokubun, Katsuji Koyama, Shu Koyama, Peter Kretschmar, Hans A. Krimm, Aya Kubota, Hideyo Kunieda, Philippe Laurent, Shiu-Hang Lee, Maurice A. Leutenegger, Olivier O. Limousin, Michael Loewenstein, Knox S. Long, David Lumb, Greg Madejski, Yoshitomo Maeda, Daniel Maier, Kazuo Makishima, Maxim Markevitch, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Brian R. McNamara, Missagh Mehdipour, Eric D. Miller, Jon M. Miller, Shin Mineshige, Kazuhisa Mitsuda, Ikuyuki Mitsuishi, Takuya Miyazawa, Tsunefumi Mizuno, Hideyuki Mori, Koji Mori, Koji Mukai, Hiroshi Murakami, Richard F. Mushotzky, Takao Nakagawa, Hiroshi Nakajima, Takeshi Nakamori, Shinya Nakashima, Kazuhiro Nakazawa, Kumiko K. Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Takaya Ohashi, Masanori Ohno, Takashi Okajima, Naomi Ota, Masanobu Ozaki, Frits Paerels, Stéphane Paltani, Robert Petre, Ciro Pinto, Frederick S. Porter, Katja Pottschmidt, Christopher S. Reynolds, Samar Safi-Harb, Shinya Saito, Kazuhiro Sakai, Toru Sasaki, Goro Sato, Kosuke Sato, Rie Sato, Makoto Sawada, Norbert Schartel, Peter J. Serlemitsos, Hiromi Seta, Megumi Shidatsu, Aurora Simionescu, Randall K. Smith, Yang Soong, Łukasz Stawarz, Yasuharu Sugawara, Satoshi Sugita, Andrew Szymkowiak, Hiroyasu Tajima, Hiromitsu Takahashi, Tadayuki Takahashi, Shin'ichiro Takeda, Yoh Takei, Toru Tamagawa, Takayuki Tamura, Takaaki Tanaka, Yasuo Tanaka, Yasuyuki T. Tanaka, Makoto S. Tashiro, Yuzuru Tawara, Yukikatsu Terada, Yuichi Terashima, Francesco Tombesi, Hiroshi Tomida, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Go Tsuru, Hiroyuki Uchida, Hideki Uchiyama, Yasunobu Uchiyama, Shutaro Ueda, Yoshihiro Ueda, Shin'ichiro Uno, C. Megan Urry, Eugenio Ursino, Shin Watanabe, Norbert Werner, Dan R. Wilkins, Brian J. Williams, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Y. Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Yoichi Yatsu, Daisuke Yonetoku, Irina Zhuravleva, Abderahmen Zoghbi, Taiki Kawamuro,   2017 11 , The origin of the narrow Fe-K{\alpha} fluorescence line at 6.4 keV from active galactic nuclei has long been under debate; some of the possible sites are the outer accretion disk, the broad line region, a molecular torus, or interstellar/intracluster media. In February-March 2016, we performed the first X-ray microcalorimeter spectroscopy with the Soft X-ray Spectrometer (SXS) onboard the Hitomi satellite of the Fanaroff-Riley type I radio galaxy NGC 1275 at the center of the Perseus cluster of galaxies. With the high energy resolution of ~5 eV at 6 keV achieved by Hitomi/SXS, we detected the Fe-K{\alpha} line with ~5.4 {\sigma} significance. The velocity width is constrained to be 500-1600 km s$^{-1}$ (FWHM for Gaussian models) at 90% confidence. The SXS also constrains the continuum level from the NGC 1275 nucleus up to ~20 keV, giving an equivalent width ~20 eV of the 6.4 keV line. Because the velocity width is narrower than that of broad H{\alpha} line of ~2750 km s$^{-1}$, we can exclude a large contribution to the line flux from the accretion disk and the broad line region. Furthermore, we performed pixel map analyses on the Hitomi/SXS data and image analyses on the Chandra archival data, and revealed that the Fe-K{\alpha} line comes from a region within ~1.6 kpc from the NGC 1275 core, where an active galactic nucleus emission dominates, rather than that from intracluster media. Therefore, we suggest that the source of the Fe-K{\alpha} line from NGC 1275 is likely a low-covering fraction molecular torus or a rotating molecular disk which probably extends from a pc to hundreds pc scale in the active galactic nucleus system.
  • Glimpse of the highly obscured HMXB IGR J16318-4848 with Hitomi
    Hitomi Collaboration, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steven W. Allen, Lorella Angelini, Marc Audard, Hisamitsu Awaki, Magnus Axelsson, Aya Bamba, Marshall W. Bautz, Roger Blandford, Laura W. Brenneman, Gregory V. Brown, Esra Bulbul, Edward M. Cackett, Maria Chernyakova, Meng P. Chiao, Paolo S. Coppi, Elisa Costantini, Jelle de Plaa, Cor P. de Vries, Jan-Willem den Herder, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan E. Eckart, Teruaki Enoto, Yuichiro Ezoe, Andrew C. Fabian, Carlo Ferrigno, Adam R. Foster, Ryuichi Fujimoto, Yasushi Fukazawa, Akihiro Furuzawa, Massimiliano Galeazzi, Luigi C. Gallo, Poshak Gandhi, Margherita Giustini, Andrea Goldwurm, Liyi Gu, Matteo Guainazzi, Yoshito Haba, Kouichi Hagino, Kenji Hamaguchi, Ilana M. Harrus, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Kiyoshi Hayashida, Junko S. Hiraga, Ann Hornschemeier, Akio Hoshino, John P. Hughes, Yuto Ichinohe, Ryo Iizuka, Hajime Inoue, Yoshiyuki Inoue, Manabu Ishida, Kumi Ishikawa, Yoshitaka Ishisaki, Masachika Iwai, Jelle Kaastra, Tim Kallman, Tsuneyoshi Kamae, Jun Kataoka, Satoru Katsuda, Nobuyuki Kawai, Richard L. Kelley, Caroline A. Kilbourne, Takao Kitaguchi, Shunji Kitamoto, Tetsu Kitayama, Takayoshi Kohmura, Motohide Kokubun, Katsuji Koyama, Shu Koyama, Peter Kretschmar, Hans A. Krimm, Aya Kubota, Hideyo Kunieda, Philippe Laurent, Shiu-Hang Lee, Maurice A. Leutenegger, Olivier O. Limousin, Michael Loewenstein, Knox S. Long, David Lumb, Greg Madejski, Yoshitomo Maeda, Daniel Maier, Kazuo Makishima, Maxim Markevitch, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Brian R. McNamara, Missagh Mehdipour, Eric D. Miller, Jon M. Miller, Shin Mineshige, Kazuhisa Mitsuda, Ikuyuki Mitsuishi, Takuya Miyazawa, Tsunefumi Mizuno, Hideyuki Mori, Koji Mori, Koji Mukai, Hiroshi Murakami, Richard F. Mushotzky, Takao Nakagawa, Hiroshi Nakajima, Takeshi Nakamori, Shinya Nakashima, Kazuhiro Nakazawa, Kumiko K. Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Takaya Ohashi, Masanori Ohno, Takashi Okajima, Naomi Ota, Masanobu Ozaki, Frits Paerels, Stéphane Paltani, Robert Petre, Ciro Pinto, Frederick S. Porter, Katja Pottschmidt, Christopher S. Reynolds, Samar Safi-Harb, Shinya Saito, Kazuhiro Sakai, Toru Sasaki, Goro Sato, Kosuke Sato, Rie Sato, Makoto Sawada, Norbert Schartel, Peter J. Serlemitsos, Hiromi Seta, Megumi Shidatsu, Aurora Simionescu, Randall K. Smith, Yang Soong, Łukasz Stawarz, Yasuharu Sugawara, Satoshi Sugita, Andrew Szymkowiak, Hiroyasu Tajima, Hiromitsu Takahashi, Tadayuki Takahashi, Shin'ichiro Takeda, Yoh Takei, Toru Tamagawa, Takayuki Tamura, Takaaki Tanaka, Yasuo Tanaka, Yasuyuki T. Tanaka, Makoto S. Tashiro, Yuzuru Tawara, Yukikatsu Terada, Yuichi Terashima, Francesco Tombesi, Hiroshi Tomida, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Go Tsuru, Hiroyuki Uchida, Hideki Uchiyama, Yasunobu Uchiyama, Shutaro Ueda, Yoshihiro Ueda, Shin'ichiro Uno, C. Megan Urry, Eugenio Ursino, Shin Watanabe, Norbert Werner, Dan R. Wilkins, Brian J. Williams, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Y. Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Yoichi Yatsu, Daisuke Yonetoku, Irina Zhuravleva, Abderahmen Zoghbi, Nozomi Nakaniwa,   2017 11 , We report a Hitomi observation of IGR J16318-4848, a high-mass X-ray binary system with an extremely strong absorption of N_H~10^{24} cm^{-2}. Previous X-ray studies revealed that its spectrum is dominated by strong fluorescence lines of Fe as well as continuum emission. For physical and geometrical insight into the nature of the reprocessing material, we utilize the high spectroscopic resolving power of the X-ray microcalorimeter (the soft X-ray spectrometer; SXS) and the wide-band sensitivity by the soft and hard X-ray imager (SXI and HXI) aboard Hitomi. Even though photon counts are limited due to unintended off-axis pointing, the SXS spectrum resolves Fe K{\alpha_1} and K{\alpha_2} lines and puts strong constraints on the line centroid and width. The line width corresponds to the velocity of 160^{+300}_{-70} km s^{-1}. This represents the most accurate, and smallest, width measurement of this line made so far from any X-ray binary, much less than the Doppler broadening and shift expected from speeds which are characteristic of similar systems. Combined with the K-shell edge energy measured by the SXI and HXI spectra, the ionization state of Fe is estimated to be in the range of Fe I--IV. Considering the estimated ionization parameter and the distance between the X-ray source and the absorber, the density and thickness of the materials are estimated. The extraordinarily strong absorption and the absence of a Compton shoulder component is confirmed. These characteristics suggest reprocessing materials which are distributed in a narrow solid angle or scattering primarily with warm free electrons or neutral hydrogen.
  • Hitomi X-ray studies of Giant Radio Pulses from the Crab pulsar
    Hitomi Collaboration, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steven W. Allen, Lorella Angelini, Marc Audard, Hisamitsu Awaki, Magnus Axelsson, Aya Bamba, Marshall W. Bautz, Roger Blandford, Laura W. Brenneman, Gregory V. Brown, Esra Bulbul, Edward M. Cackett, Maria Chernyakova, Meng P. Chiao, Paolo S. Coppi, Elisa Costantini, Jelle de Plaa, Cor P. de Vries, Jan-Willem den Herder, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan E. Eckart, Teruaki Enoto, Yuichiro Ezoe, Andrew C. Fabian, Carlo Ferrigno, Adam R. Foster, Ryuichi Fujimoto, Yasushi Fukazawa, Akihiro Furuzawa, Massimiliano Galeazzi, Luigi C. Gallo, Poshak Gandhi, Margherita Giustini, Andrea Goldwurm, Liyi Gu, Matteo Guainazzi, Yoshito Haba, Kouichi Hagino, Kenji Hamaguchi, Ilana M. Harrus, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Kiyoshi Hayashida, Junko S. Hiraga, Ann Hornschemeier, Akio Hoshino, John P. Hughes, Yuto Ichinohe, Ryo Iizuka, Hajime Inoue, Yoshiyuki Inoue, Manabu Ishida, Kumi Ishikawa, Yoshitaka Ishisaki, Masachika Iwai, Jelle Kaastra, Tim Kallman, Tsuneyoshi Kamae, Jun Kataoka, Satoru Katsuda, Nobuyuki Kawai, Richard L. Kelley, Caroline A. Kilbourne, Takao Kitaguchi, Shunji Kitamoto, Tetsu Kitayama, Takayoshi Kohmura, Motohide Kokubun, Katsuji Koyama, Shu Koyama, Peter Kretschmar, Hans A. Krimm, Aya Kubota, Hideyo Kunieda, Philippe Laurent, Shiu-Hang Lee, Maurice A. Leutenegger, Olivier O. Limousin, Michael Loewenstein, Knox S. Long, David Lumb, Greg Madejski, Yoshitomo Maeda, Daniel Maier, Kazuo Makishima, Maxim Markevitch, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Brian R. McNamara, Missagh Mehdipour, Eric D. Miller, Jon M. Miller, Shin Mineshige, Kazuhisa Mitsuda, Ikuyuki Mitsuishi, Takuya Miyazawa, Tsunefumi Mizuno, Hideyuki Mori, Koji Mori, Koji Mukai, Hiroshi Murakami, Richard F. Mushotzky, Takao Nakagawa, Hiroshi Nakajima, Takeshi Nakamori, Shinya Nakashima, Kazuhiro Nakazawa, Kumiko K. Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Takaya Ohashi, Masanori Ohno, Takashi Okajima, Kenya Oshimizu, Naomi Ota, Masanobu Ozaki, Frits Paerels, Stéphane Paltani, Robert Petre, Ciro Pinto, Frederick S. Porter, Katja Pottschmidt, Christopher S. Reynolds, Samar Safi-Harb, Shinya Saito, Kazuhiro Sakai, Toru Sasaki, Goro Sato, Kosuke Sato, Rie Sato, Makoto Sawada, Norbert Schartel, Peter J. Serlemtsos, Hiromi Seta, Megumi Shidatsu, Aurora Simionescu, Randall K. Smith, Yang Soong, Ł ukasz Stawarz, Yasuharu Sugawara, Satoshi Sugita, Andrew Szymkowiak, Hiroyasu Tajima, Hiromitsu Takahashi, Tadayuki Takahashi, Shiníchiro Takeda, Yoh Takei, Toru Tamagawa, Takayuki Tamura, Takaaki Tanaka, Yasuo Tanaka, Yasuyuki T. Tanaka, Makoto S. Tashiro, Yuzuru Tawara, Yukikatsu Terada, Yuichi Terashima, Francesco Tombesi, Hiroshi Tomida, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Go Tsuru, Hiroyuki Uchida, Hideki Uchiyama, Yasunobu Uchiyama, Shutaro Ueda, Yoshihiro Ueda, Shiníchiro Uno, C. Megan Urry, Eugenio Ursino, Shin Watanabe, Norbert Werner, Dan R. Wilkins, Brian J. Williams, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Y. Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Yoichi Yatsu, Daisuke Yonetoku, Irina Zhuravleva, Abderahmen Zoghbi, Toshio Terasawa, Mamoru Sekido, Kazuhiro Takefuji, Eiji Kawai, Hiroaki Misawa, Fuminori Tsuchiya, Ryo Yamazaki, Eiji Kobayashi, Shota Kisaka, Takahiro Aoki,   2017 07 , To search for giant X-ray pulses correlated with the giant radio pulses (GRPs) from the Crab pulsar, we performed a simultaneous observation of the Crab pulsar with the X-ray satellite Hitomi in the 2 -- 300 keV band and the Kashima NICT radio observatory in the 1.4 -- 1.7 GHz band with a net exposure of about 2 ks on 25 March 2016, just before the loss of the Hitomi mission.The timing performance of the Hitomi instruments was confirmed to meet the timing requirement and about 1,000 and 100 GRPs were simultaneously observed at the main and inter-pulse phases, respectively, and we found no apparent correlation between the giant radio pulses and the X-ray emission in either the main or inter-pulse phases.All variations are within the 2 sigma fluctuations of the X-ray fluxes at the pulse peaks, and the 3 sigma upper limits of variations of main- or inter- pulse GRPs are 22\% or 80\% of the peak flux in a 0.20 phase width, respectively, in the 2 -- 300 keV band.The values become 25\% or 110\% for main or inter-pulse GRPs, respectively, when the phase width is restricted into the 0.03 phase.Among the upper limits from the Hitomi satellite, those in the 4.5-10 keV and the 70-300 keV are obtained for the first time, and those in other bands are consistent with previous reports.Numerically, the upper limits of main- and inter-pulse GRPs in the 0.20 phase width are about (2.4 and 9.3) $\times 10^{-11}$ erg cm$^{-2}$, respectively. No significant variability in pulse profiles implies that the GRPs originated from a local place within the magnetosphere and the number of photon-emitting particles temporally increases.However, the results do not statistically rule out variations correlated with the GRPs, because the possible X-ray enhancement may appear due to a $>0.02$\% brightening of the pulse-peak flux under such conditions.
  • ASTRO-H White Paper - AGN Winds
    J. S. Kaastra, Y. Terashima, T. Kallman, Y. Haba, E. Costantini, L. Gallo, Y. Fukazawa, F. Tombesi, N. Anabuki, H. Awaki, G. Brown, L. di Gesu, K. Ebisawa, J. Ebrero, M. Eckart, K. Hagino, K. S. Long, J. Miller, T. Miyazawa, S. Paltani, C. Reynolds, C. Ricci, H. Sameshima, H. Seta, Y. Ueda, M. Urry, for the ASTRO-H Science Working Group,   2014 12 03 , In this white paper we describe the prospects for ASTRO-H for the study of outflows from active galactic nuclei. The most important breakthroughs in this field are expected to arise from the high spectral resolution and sensitivity in the Fe-K band, combined with broad-band sensitivity over the full X-ray band and spectral capabilities also at lower energies. The sensitivity in the Fe-K region allows to extend the absorption measure distribution of the outflow out to the highest ionisation states accessible, where observations with current X-ray missions indicate that most of the outflowing gas is to be found. Due to the high-resolution and sensitivity it will also be able to give the definitive proof for the existence of ultra-fast outflows, and if so, characterise their physical properties in great detail. These ultra-fast outflows carry very large amounts of energy and momentum, and are of fundamental importance for feedback studies. We show how the ASTRO-H observations in general can help to constrain numerical models for outflows. The link to reflection and emission processes is also discussed, as well as the possible relation between outflows and relativistic emission lines. Finally, we discuss the prospects for other related categories of objects like BAL quasars, partially covered sources and Compton thick outflows.
  • The ASTRO-H X-ray Astronomy Satellite
    Takahashi Tadayuki, Mitsuda Kazuhisa, Kelley Richard, Aharonian Felix, Akamatsu Hiroki, Akimoto Fumie, Allen Steve, Anabuki Naohisa, Angelini Lorella, Arnaud Keith, Asai Makoto, Audard Marc, Awaki Hisamitsu, Azzarello Philipp, Baluta Chris, Bamba Aya, Bando Nobutaka, Bautz Marshall, Bialas Thomas, Blandford Roger, Boyce Kevin, Brenneman Laura, Brown Greg, Cackett Edward, Canavan Edgar, Chernyakova Maria, Chiao Meng, Coppi Paolo, Costantini Elisa, de Plaa Jelle, den Herder Jan-Willem, DiPirro Michael, Done Chris, Dotani Tadayasu, Doty John, Ebisawa Ken, Enoto Teruaki, Ezoe Yuichiro, Fabian Andrew, Ferrigno Carlo, Foster Adam, Fujimoto Ryuichi, Fukazawa Yasushi, Funk Stefan, Furuzawa Akihiro, Galeazzi Massimiliano, Gallo Luigi, Gandhi Poshak, Gilmore Kirk, Guainazzi Matteo, Haas Daniel, Haba Yoshito, Hamaguchi Kenji, Harayama Atsushi, Hatsukade Isamu, Hayashi Katsuhiro, Hayashi Takayuki, Hayashida Kiyoshi, Hiraga Junko, Hirose Kazuyuki, Hornschemeier Ann, Hoshino Akio, Hughes John, Hwang Una, Iizuka Ryo, Inoue Yoshiyuki, Ishibashi Kazunori, Ishida Manabu, Ishikawa Kumi, Ishimura Kosei, Ishisaki Yoshitaka, Itoh Masayuki, Iwata Naoko, Iyomoto Naoko, Jewell Chris, Kaastra Jelle, Kallman Timothy, Kamae Tuneyoshi, Kataoka Jun, Katsuda Satoru, Katsuta Junichiro, Kawaharada Madoka, Kawai Nobuyuki, Kawano Taro, Kawasaki Shigeo, Khangaluyan Dmitry, Kilbourne Caroline, Kimball Mark, Kimura Masashi, Kitamoto Shunji, Kitayama Tetsu, Kohmura Takayoshi, Kokubun Motohide, Konami Saori, Kosaka Tatsuro, Koujelev Alexander, Koyama Katsuji, Krimm Hans, Kubota Aya, Kunieda Hideyo, LaMassa Stephanie, Laurent Philippe, Lebrun Francois, Leutenegger Maurice, Limousin Olivier, Loewenstein Michael, Long Knox, Lumb David, Madejski Grzegorz, Maeda Yoshitomo, Makishima Kazuo, Markevitch Maxim, Masters Candace, Matsumoto Hironori, Matsushita Kyoko, McCammon Dan, McGuinness Daniel, McNamara Brian, Miko Joseph, Miller Jon, Miller Eric, Mineshige Shin, Minesugi Kenji, Mitsuishi Ikuyuki, Miyazawa Takuya, Mizuno Tsunefumi, Mori Koji, Mori Hideyuki, Moroso Franco, Muench Theodore, Mukai Koji, Murakami Hiroshi, Murakami Toshio, Mushotzky Richard, Nagano Housei, Nagino Ryo, Nakagawa Takao, Nakajima Hiroshi, Nakamori Takeshi, Nakashima Shinya, Nakazawa Kazuhiro, Namba Yoshiharu, Natsukari Chikara, Nishioka Yusuke, Nobukawa Masayoshi, Noda Hirofumi, Nomachi Masaharu, Dell Steve O', Odaka Hirokazu, Ogawa Hiroyuki, Ogawa Mina, Ogi Keiji, Ohashi Takaya, Ohno Masanori, Ohta Masayuki, Okajima Takashi, Okazaki Tsuyoshi, Ota Naomi, Ozaki Masanobu, Paerels Frits, Paltani Stephane, Parmar Arvind, Petre Robert, Pinto Ciro, Pohl Martin, Pontius James, Porter F. Scott, Pottschmidt Katja, Ramsey Brian, Reis Rubens, Reynolds Christopher, Ricci Claudio, Russell Helen, Safi-Harb Samar, Saito Shinya, Sakai Shin-ichiro, Sameshima Hiroaki, Sato Kosuke, Sato Rie, Sato Goro, Sawada Makoto, Serlemitsos Peter, Seta Hiromi, Shibano Yasuko, Shida Maki, Shimada Takanobu, Shirron Peter, Simionescu Aurora, Simmons Cynthia, Smith Randall, Sneiderman Gary, Soong Yang, Stawarz Lukasz, Sugawara Yasuharu, Sugita Satoshi, Szymkowiak Andrew, Tajima Hiroyasu, Takahashi Hiroaki, Takahashi Hiromitsu, Takeda Shin-ichiro, Takei Yoh, Tamagawa Toru, Tamura Keisuke, Tamura Takayuki, Tanaka Takaaki, Tanaka Yasuyuki, Tanaka Yasuo, Tashiro Makoto, Tawara Yuzuru, Terada Yukikatsu, Terashima Yuichi, Tombesi Francesco, Tomida Hiroshi, Tsuboi Yoko, Tsujimoto Masahiro, Tsunemi Hiroshi, Tsuru Takeshi, Uchida Hiroyuki, Uchiyama Hideki, Uchiyama Yasunobu, Ueda Yoshihiro, Uedag Shutaro, Ueno Shiro, Uno Shinichiro, Urry Meg, Ursino Eugenio, de Vries Cor, Wada Atsushi, Watanabe Shin, Watanabe Tomomi, Werner Norbert, White Nicholas, Wilkins Dan, Yamada Shinya, Yamada Takahiro, Yamaguchi Hiroya, Yamaoka Kazutaka, Yamasaki Noriko, Yamauchi Makoto, Yamauchi Shigeo, Yadoob Tahir, Yatsu Yoichi, Yonetoku Daisuke, Yoshida Atsumasa, Yuasa Takayuki, Zhuravleva Irina, Zoghbi Abderahmen, ZuHone John, SPACE TELESCOPES AND INSTRUMENTATION 2014: ULTRAVIOLET TO GAMMA RAY, 9144,   2014
  • Calibration of Astro-D telescope with an X-ray pencil beam
    S. P. I. E-The International Society for Optical Engineering,   1993
  • ASCA Observations of Seyfert 2 Galaxies
    AWAKI H, UENO S, KOYAMA K, IWASAWA K, KUNIEDA H, "Emission Lines in Active Galaxies : New Methods and Techniques" B. M. Peterson, F. -Z. Cheng, and A. S. Wilson(eds), 19, (1) 95 - 98,   1997
  • Time variability of low-luminosity AGN
    Astron.Nach., 320,   1999
  • Design study of telescope housing for the NeXT/XRT
    SPIEThe Proceedings of SPIE, 7011,   2008
  • Current status of the Astro-H-X-ray Telescope system
    SPIEThe Proceedings of SPIE, 7437,   2009
  • Hard x-ray telescope to be onboard ASTRO-H
    SPIEThe Proceedings of SPIE 7732, 7732,   2010
  • The thermal analysis of the hard X-ray telescope (HXT) and the investigation of the deformation of the mirror foil due to temperature change
    SPIEThe Proceedings of SPIE, 7732,   2010
  • Vibration properties of Hard X-ray telescope on board satellite
    SPIEThe Proceedings of SPIE, 7732,   2010

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