| Project/Area Number |
06044225
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | Joint Research |
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| Research Institution | The Institure of Space and Astronautical Science |
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Principal Investigator |
INOUE Hajime The Institure of Space and Astronautical Science, Professor, 宇宙圏研究系, 教授 (40092142)
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| Co-Investigator(Kenkyū-buntansha) |
FINK H MPI,Scientist, 研究員
VOGES W MPI,Scientist, 研究員
BRINKMANN W MPI,Chief Scientist, 主任研究員
TANAKA Yasuo MPI,Visiting Professor, 客員教授 (10022534)
TRUEMPER J MPI,Professor, 教授
KUNIEDA Hideyo Nagoya Univ., Assistant Professor, 理, 助教授 (00126856)
ISHIDA Manabu The Institure of Space and Astronautical Science, Assistant, 宇宙圏研究系, 助手 (20249931)
DOTANI Tadayasu The Institure of Space and Astronautical Science, Assistant, 宇宙圏研究系, 助手 (30211410)
TAKAHASHI Tadayuki The Institure of Space and Astronautical Science, Assistant Professor, 宇宙圏研究系, 助教授 (50183851)
MITSUDA Kazuhisa The Institure of Space and Astronautical Science, Assistant Professor, 宇宙圏研究系, 助教授 (80183961)
OGAWARA Yoshiaki The Institure of Space and Astronautical Science, Professor, 宇宙圏研究系, 教授 (80013671)
NAGASE Fumiaki The Institure of Space and Astronautical Science, Professor, 企画情報解析センター, 教授 (00022690)
VOGES W マックスプランク研究所, 研究員
BRINKMANN W マックスプランク研究所, 主任研究員
常深 博 大阪大学, 理学部, 教授 (90116062)
小山 勝二 京都大学, 理学部, 教授 (10092206)
大橋 隆哉 東京都立大学, 理学部, 助教授 (70183027)
牧島 一夫 東京大学, 理学部, 教授 (20126163)
VOGES W. マックスプランク研究所, 研究員
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| Project Period (FY) |
1995 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥7,200,000 (Direct Cost: ¥7,200,000)
Fiscal Year 1996: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1995: ¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1994: ¥2,500,000 (Direct Cost: ¥2,500,000)
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| Keywords | X-ray astronomy / scientific satellite / X-ray spectroscopy / cosmic hot plasmas / X-ray sources / black holes / evolution of the universe |
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| Research Abstract |
ASCA (ASTRO-D), the fourth X-ray astonomy satellite of ISAS,Japan, was launched in February, 1993. ASCA is an X-ray astronomy observatory which is, for the first time, capable of performing imaging and spectroscopic observations simultaneously over a wide energy range 0.5-10 keV.Whereas, ROSAT,the X-ray astronomy satellite of the Max-Planck Institute, Germany, was launched in June, 1990. ROSAT is also an X-ray astronomy observatory which is characterized by its excellent imaging capability, although it is limited to narrower energy bands than ASCA.ASCA has much higher spectral capability than ROSAT,while ROSAT has much finer imaging capability and higher source detection sensitivity that ASCA.Both observatories are really complimetary to each other.
An extensive collaboration between Japanese and German scientists has been carried out in performing simultaneous observations, cross-calibrations of the X-ray telescopes, exchanging the data, developping analysis software, discussing the sc
… More
ientific yields, presenting the results to international communities, future development of instruments and so on.
The ASCA instruments cover the most important energy band for plasma diagnostics, because all the K-lines and the K-absorption edges from oxygen through iron at various ionization stages lie within this band. The CCD camera of ASCA can resolve all major lines individually. Motion of plasma of the order or greater than 1000 km/s can be measured significantly from Doppler shift of the line energies. These capabilities of ASCA allow diagnostics of accreting matter around such compact objeots as neutron stars and black holes. On the other hand, the ROSAT telescope provides an accurate position of each X-ray sources and enables us to indentify the X-ray sources with optically known sources. The highly resolved spatial information with ROSAT also provides powerful means for the investigations of extended plasmas in supernova remnants, galaxies, and clusters of galaxies. Combining these characteristics of the two observatories, several remarkable scientific results have already been obtained and shown in many scientific papers. This collaborative study should be kept continuing in future. Less
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