Origin of thermal and non-thermal hard X-ray emission from the Galactic center

V. A. Dogiel; K. S. Cheng; D. O. Chernyshov; H. Inoue; C. M. Ko; M. Kokubun; Y. Maeda; K. Mitsuda; N. Y. Yamasaki

Origin of thermal and non-thermal hard X-ray emission from the Galactic center

V. A. Dogiel, K. S. Cheng, D. O. Chernyshov, H. Inoue, C. M. Ko, M. Kokubun, Y. Maeda, K. Mitsuda, N. Y. Yamasaki

天文研究所

研究成果: 雜誌貢獻 › 會議論文 › 同行評審

摘要

We analyse new results of CHANDRA and SUZAKU which found a flux of hard X-ray emission from the compact region around Sgr A^* (r∼ 100 pc). We propose that this emission is a consequence of a special transient accretion process when a part of captured star obtains an additional angular momentum. As a result a flux of subrelativistic protons is ejected from the Galactic black hole, which heats up the background plasma in the Galactic center up to temperature about 6-10 keV and produces by inverse bremsstrahlung a flux of non-thermal X-ray emission in the energy range above 10 keV.

原文	???core.languages.en_GB???
期刊	Proceedings of Science
出版狀態	已出版 - 2008
事件	7th INTEGRAL Workshop - An INTEGRAL View of Compact Objects, INTEGRAL 2008 - Copenhagen, Denmark 持續時間: 8 9月 2008 → 11 9月 2008

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title = "Origin of thermal and non-thermal hard X-ray emission from the Galactic center",

abstract = "We analyse new results of CHANDRA and SUZAKU which found a flux of hard X-ray emission from the compact region around Sgr A* (r∼ 100 pc). We propose that this emission is a consequence of a special transient accretion process when a part of captured star obtains an additional angular momentum. As a result a flux of subrelativistic protons is ejected from the Galactic black hole, which heats up the background plasma in the Galactic center up to temperature about 6-10 keV and produces by inverse bremsstrahlung a flux of non-thermal X-ray emission in the energy range above 10 keV.",

author = "Dogiel, {V. A.} and Cheng, {K. S.} and Chernyshov, {D. O.} and H. Inoue and Ko, {C. M.} and M. Kokubun and Y. Maeda and K. Mitsuda and Yamasaki, {N. Y.}",

year = "2008",

language = "???core.languages.en_GB???",

journal = "Proceedings of Science",

issn = "1824-8039",

note = "7th INTEGRAL Workshop - An INTEGRAL View of Compact Objects, INTEGRAL 2008 ; Conference date: 08-09-2008 Through 11-09-2008",

}

TY - JOUR

T1 - Origin of thermal and non-thermal hard X-ray emission from the Galactic center

AU - Dogiel, V. A.

AU - Cheng, K. S.

AU - Chernyshov, D. O.

AU - Inoue, H.

AU - Ko, C. M.

AU - Kokubun, M.

AU - Maeda, Y.

AU - Mitsuda, K.

AU - Yamasaki, N. Y.

PY - 2008

Y1 - 2008

N2 - We analyse new results of CHANDRA and SUZAKU which found a flux of hard X-ray emission from the compact region around Sgr A* (r∼ 100 pc). We propose that this emission is a consequence of a special transient accretion process when a part of captured star obtains an additional angular momentum. As a result a flux of subrelativistic protons is ejected from the Galactic black hole, which heats up the background plasma in the Galactic center up to temperature about 6-10 keV and produces by inverse bremsstrahlung a flux of non-thermal X-ray emission in the energy range above 10 keV.

AB - We analyse new results of CHANDRA and SUZAKU which found a flux of hard X-ray emission from the compact region around Sgr A* (r∼ 100 pc). We propose that this emission is a consequence of a special transient accretion process when a part of captured star obtains an additional angular momentum. As a result a flux of subrelativistic protons is ejected from the Galactic black hole, which heats up the background plasma in the Galactic center up to temperature about 6-10 keV and produces by inverse bremsstrahlung a flux of non-thermal X-ray emission in the energy range above 10 keV.

UR - http://www.scopus.com/inward/record.url?scp=84883643075&partnerID=8YFLogxK

M3 - 會議論文

AN - SCOPUS:84883643075

SN - 1824-8039

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 7th INTEGRAL Workshop - An INTEGRAL View of Compact Objects, INTEGRAL 2008

Y2 - 8 September 2008 through 11 September 2008

ER -

Origin of thermal and non-thermal hard X-ray emission from the Galactic center

摘要

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