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Article: Origin of thermal and non-thermal hard X-ray emission from the galactic center

TitleOrigin of thermal and non-thermal hard X-ray emission from the galactic center
Authors
KeywordsGalaxy: center
ISM: cosmic rays
X-rays: diffuse background
Issue Date2009
PublisherNihon Tenmon Gakkai. The Journal's web site is located at http://www.asj.or.jp/pasj/
Citation
Publications Of The Astronomical Society Of Japan, 2009, v. 61 n. 5, p. 1099-1105 How to Cite?
AbstractWe analyse new results of Chandra and Suzaku Observatories which found a flux of hard X-ray emission from the compact region around Sgr A * (r ∼ 100 pc). We suppose that this emission is generated by accretion processes onto the central supermassive blackhole when an unbound part of captured stars obtains an additional momentum. As a result a flux of subrelativistic protons is generated near the galactic center which heats the background plasma up to temperatures about 6-10 keV and produces by inverse bremsstrahlung a flux of non-thermal X-ray emission in the energy range above 10 keV. © 2009. Astronomical Society of Japan.
Persistent Identifierhttp://hdl.handle.net/10722/80489
ISSN
2015 Impact Factor: 1.961
2015 SCImago Journal Rankings: 0.804
References

 

DC FieldValueLanguage
dc.contributor.authorDogiel, VAen_HK
dc.contributor.authorChernyshov, DOen_HK
dc.contributor.authorYuasa, Ten_HK
dc.contributor.authorProkhorov, Den_HK
dc.contributor.authorCheng, KSen_HK
dc.contributor.authorBamba, Aen_HK
dc.contributor.authorInoue, Hen_HK
dc.contributor.authorKo, CMen_HK
dc.contributor.authorKokubun, Men_HK
dc.contributor.authorMaeda, Yen_HK
dc.contributor.authorMitsuda, Ken_HK
dc.contributor.authorNakazawa, Ken_HK
dc.contributor.authorYamasaki, NYen_HK
dc.date.accessioned2010-09-06T08:07:01Z-
dc.date.available2010-09-06T08:07:01Z-
dc.date.issued2009en_HK
dc.identifier.citationPublications Of The Astronomical Society Of Japan, 2009, v. 61 n. 5, p. 1099-1105en_HK
dc.identifier.issn0004-6264en_HK
dc.identifier.urihttp://hdl.handle.net/10722/80489-
dc.description.abstractWe analyse new results of Chandra and Suzaku Observatories which found a flux of hard X-ray emission from the compact region around Sgr A * (r ∼ 100 pc). We suppose that this emission is generated by accretion processes onto the central supermassive blackhole when an unbound part of captured stars obtains an additional momentum. As a result a flux of subrelativistic protons is generated near the galactic center which heats the background plasma up to temperatures about 6-10 keV and produces by inverse bremsstrahlung a flux of non-thermal X-ray emission in the energy range above 10 keV. © 2009. Astronomical Society of Japan.en_HK
dc.languageengen_HK
dc.publisherNihon Tenmon Gakkai. The Journal's web site is located at http://www.asj.or.jp/pasj/en_HK
dc.relation.ispartofPublications of the Astronomical Society of Japanen_HK
dc.subjectGalaxy: centeren_HK
dc.subjectISM: cosmic raysen_HK
dc.subjectX-rays: diffuse backgrounden_HK
dc.titleOrigin of thermal and non-thermal hard X-ray emission from the galactic centeren_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0004-6264&volume=61&issue=5&spage=1099&epage=1105&date=2009&atitle=Origin+of+thermal+and+non-thermal+hard+X-ray+emission+from+the+galactic+center-
dc.identifier.emailCheng, KS: hrspksc@hkucc.hku.hken_HK
dc.identifier.authorityCheng, KS=rp00675en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-72149134911en_HK
dc.identifier.hkuros168772en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-72149134911&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume61en_HK
dc.identifier.issue5en_HK
dc.identifier.spage1099en_HK
dc.identifier.epage1105en_HK
dc.publisher.placeJapanen_HK
dc.identifier.scopusauthoridDogiel, VA=6603566238en_HK
dc.identifier.scopusauthoridChernyshov, DO=14059433800en_HK
dc.identifier.scopusauthoridYuasa, T=7203046502en_HK
dc.identifier.scopusauthoridProkhorov, D=15822856500en_HK
dc.identifier.scopusauthoridCheng, KS=9745798500en_HK
dc.identifier.scopusauthoridBamba, A=6701557970en_HK
dc.identifier.scopusauthoridInoue, H=53873680500en_HK
dc.identifier.scopusauthoridKo, CM=7202596730en_HK
dc.identifier.scopusauthoridKokubun, M=7006798464en_HK
dc.identifier.scopusauthoridMaeda, Y=7402845669en_HK
dc.identifier.scopusauthoridMitsuda, K=7005132297en_HK
dc.identifier.scopusauthoridNakazawa, K=7202920765en_HK
dc.identifier.scopusauthoridYamasaki, NY=7102834448en_HK

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