Origin of Thermal and Non-Thermal Hard X-Ray Emission from the Galactic Center

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/27853

Title:	Origin of Thermal and Non-Thermal Hard X-Ray Emission from the Galactic Center
Authors:	Dogiel,VA;Chernyshov,DO;Yuasa,T;Prokhorov,D;Cheng,KS;Bamba,A;Inoue,H;Ko,CM;Kokubun,M;Maeda,Y;Mitsuda,K;Nakazawa,K;Yamasaki,NY
Contributors:	天文研究所
Keywords:	IRON LINE;RIDGE;SUZAKU;DISK;NUCLEI;GALAXY;VIEW;FLUX
Date:	2009
Issue Date:	2010-06-29 19:34:53 (UTC+8)
Publisher:	中央大學
Abstract:	We 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 similar to 100pc). 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 6-10keV and produces by inverse bremsstrahlung a flux of non-thermal X-ray emission in the energy range above 10 keV.
Relation:	PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
Appears in Collections:	[Graduate Institute of Astronomy] journal & Dissertation

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