Studies of Mass-Accreting Black Holes through Broad-Band X-Ray Observations
Project/Area Number |
23244024
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Astronomy
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Research Institution | The University of Tokyo |
Principal Investigator |
MAKISHIMA Kazuo 東京大学, 理学(系)研究科(研究院), 教授 (20126163)
|
Co-Investigator(Kenkyū-buntansha) |
NAKAZAWA Kazuhiro 東京大学, 大学院理学系研究科, 講師 (50342621)
|
Project Period (FY) |
2011-04-01 – 2014-03-31
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥48,230,000 (Direct Cost: ¥37,100,000、Indirect Cost: ¥11,130,000)
Fiscal Year 2013: ¥13,910,000 (Direct Cost: ¥10,700,000、Indirect Cost: ¥3,210,000)
Fiscal Year 2012: ¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2011: ¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
|
Keywords | ブラックホール / 宇宙X線 / 「すざく」 / MAXI / ASTRO-H / コンプトン散乱 / 宇宙X線 / すざく |
Research Abstract |
Through X-ray observations of mass-accreting black holes with the Suzaku satellite, and the MAXI experiment onboard the International Space Station, we obtained the following results. (1) We successfully reinforced the disk-corona view that describes emission from these objects when their accretion rate is relatively low. (2) Rapid spectral changes were detected from Cygnus X-1 as it displays spiky fast variations. (3) We discovered that the primary hard X-ray emission from Active Galactic Nuclei in fact consists of two distinct components, and revised previous view that regards the emission as a single component. (4) Comparing black holes with accreting neutron stars with weak magnetic fields, a unified description of thermal Comptonization process was constructed. (5) In collaboration with many domestic and foreign institutions, as well as industries, we developed the Soft Gamma-Ray Detector, to be put onboard ASTRO-H which is scheduled for lanch in 2015 as a successor to Suzaku.
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Report
(4 results)
Research Products
(110 results)
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[Journal Article] Evidence for a Cool Disk and Inhomogeneous Coronae from Wide-band Temporal Spectroscopy of CygX-1 with Suzaku2013
Author(s)
Yamada, S., Makishima, K., Done, C., Torii, S., Noda, H. & Sakurai, S
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Journal Title
Publ. Astron. Soc. Japan 65
Volume: ID 80
Issue: 4
Pages: 21-21
DOI
Related Report
Peer Reviewed
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[Journal Article] Highly Ionized Fe-K Absorption Line from Cygnus X-1 in the High/Soft State Observed with Suzaku2013
Author(s)
Yamada, S., Torii, S., Mineshige, S., Ueda, Y., Kubota, A., Gandhi, P., Done, C., Noda, H., Yoshikawa, A. & Makishima, K
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Journal Title
Astrophys. J. Lett. 767
Volume: id. L35
Issue: 2
Pages: 6-6
DOI
Related Report
Peer Reviewed
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[Journal Article] Rapid Spectral Changes of Cyg X-1 in the Low/Hard State with Suzaku2013
Author(s)
Yamada, S., Negoro, H., Torii, S., Noda, H., Mineshige, S. & Makishima, K
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Journal Title
Astrophy.J.Lett.767
Volume: id. L34
Issue: 2
Pages: 5-5
DOI
Related Report
Peer Reviewed
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[Journal Article] Geometry dependence of the light collection efficiency of BGO crystal scintillators read out by Avalanche Photo Diodes2013
Author(s)
Sasano, M., Nishioka, H., Okuyama S., Nakazawa K., Makishima K., YamadaS., Yuasa T., Kataoka J., Fukazawa Y., Hanabata Y. & Hayashi K
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Journal Title
Nuclear Instr. Meth. Phys
Volume: A 715
Pages: 105-111
DOI
Related Report
Peer Reviewed
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[Journal Article] The Nature of Stable Soft X-Ray Emissions in Several Types of Active Galactic Nuclei Observed by Suzaku2013
Author(s)
Noda, H., Makishima, K., Nakazawa, K., Uchiyama, H., Yamada, S. and Sakurai, S.
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Journal Title
Publications of the Astronomical Society of Japan
Volume: 65
NAID
Related Report
Peer Reviewed
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[Journal Article] Rapid Spectral Changes of Cygnus X-1 in the Low/Hard State with Suzaku2013
Author(s)
Yamada, S., Negoro, H., Torii, S., Noda, H., Mineshige, S. and Makishima, K.
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Journal Title
Publications of the Astronomical Society of Japan
Volume: 65
Related Report
Peer Reviewed
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[Journal Article] Geometry dependence of the light collection efficiency of BGO crystal scintillators read out by avalanche photo diodes2013
Author(s)
Sasano, M., Nishioka, H., Okuyama, S., Nakazawa, K., Makishima, K., Yamada, S., Yuasa, T., Okumura, A., Kataoka, J., Fukazawa, Y., Hanabata, K. and Hayashi
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Journal Title
Nuclear Instruments and Methods Physics Research A
Volume: in press
Related Report
Peer Reviewed
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[Journal Article] Highly Ionized Fe-K Absorption Line from Cygnus X-1 in the High/Soft State Observed with Suzaku2013
Author(s)
Yamada, S., Torii, S., Mineshige, S., Ueda, Y., Kubota, A., Gandhi, P., Done, C., Noda, H., Yoshikawa, A. and Makishima, K.
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Journal Title
Publications of the Astronomical Society of Japan
Volume: 65
Related Report
Peer Reviewed
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[Journal Article] Evidence for a Cool Disk and Inhomogeneous Coronae from Wide-band Temporal Spectroscopy of Cygnus X-1 with Suzaku2013
Author(s)
Yamada, S., Makishima, K., Done, C., Torii, S., Noda, H. and Sakurai, S.
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Journal Title
Publications of the Astronomical Society of Japan
Volume: 65
NAID
Related Report
Peer Reviewed
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[Journal Article] Accretion Geometry of the Low-Mass X-Ray Binary Aquila X-1 in the Soft and Hard States2012
Author(s)
Sakurai, S., Yamada, S., Torii, S., Noda, H., Nakazawa, K., Makishima, K. & Takahashi, H
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Journal Title
Publ. Astron. Soc. Japan 64
Volume: ID 72
Issue: 4
Pages: 12-12
DOI
NAID
Related Report
Peer Reviewed
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[Journal Article] Accretion Geometry of the Low-Mass X-Ray Binary Aquila X-1 in the Soft and Hard States2012
Author(s)
Sakurai, S., Yamada, S., Torii, S., Noda, H., Nakazawa, K., Makishima, K. and Takahashi, H.
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Journal Title
Publications of the Astronomical Society of Japan
Volume: 64
NAID
Related Report
Peer Reviewed
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[Journal Article] Suzaku Studies of Wide-Band Spectral Variability of the Bright Type I Seyfert Galaxy Markarian 5092011
Author(s)
Noda, H., Makishima, K., Yamada, S., Torii, S., Sakurai, S. & Nakazawa, K
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Journal Title
Astron. Soc. Japan
Volume: 63
Issue: sp3
Pages: 449-458
DOI
NAID
Related Report
Peer Reviewed
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[Journal Article] Spectral and Timing Studies of Cyg X-1 in the Low/Hard State with Suzaku2011
Author(s)
Torii, S., Yamada, S., Makishima, K., Sakurai, S. Nakazawa, K., Noda, H., Done, C., Takahashi H. & Gandhi, P
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Journal Title
Publ. Astron. Soc. Japan
Volume: 63S
Issue: sp3
Pages: S771-S783
DOI
NAID
Related Report
Peer Reviewed
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[Journal Article] Suzaku Studies of Wide-Band Spectral Variability of the Bright Type I Seyfert Galaxy Markarian 5092011
Author(s)
Noda,H., Makishima, K., Yamada, S., Torii, S., Sakurai,S., Nakazawa, K.
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Journal Title
Publications of Astronomical Society of Japan
Volume: 63
Pages: 449-458
NAID
Related Report
Peer Reviewed
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[Presentation] A Unified Compilation of Thermal Comptonization Processes in Accreting Objects2014
Author(s)
Makishima, K., Zhang, Z., Noda, H., Toii, S., Skurai, S., Kobayashi, S.,Ono, K., Nakazawa, K., Sugizaki, M., Yamada, S. and Kawaguchi, T
Organizer
Suzaku-MAXI Conference : Expanding the Frontiers of the X-ray Universe
Place of Presentation
愛媛大学
Related Report
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[Presentation] A Unified Compilation of Thermal Comptonization Processes in Accreting Objects2014
Author(s)
Makishima, K., Zhang, Z., Noda, H., Toii, S., Skurai, S., Kobayashi, S.,Ono, K., Nakazawa, K., Sugizaki, M., Yamada, S. and Kawaguchi, T.
Organizer
Suzaku-MAXI Conference: Expanding the Frontiers of the X-ray Universe
Place of Presentation
愛媛大学(愛媛県)
Related Report
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