The Spectrum of the Solar Wind Charge Exchange Emission: Contribution to the Soft X-ray Background

被引:0
作者
Koutroumpa, Dimitra [1 ]
Lallement, Rosine [1 ]
Kharchenko, Vasili [2 ]
机构
[1] Univ Paris 06, Univ Versailles St Quentin Yvellines, CNRS, Serv Aeron,IPSL,UMR 7620, Verrieres Le Buisson, France
[2] Harvard Smithsonian Ctr Astrophys, Cambridge, MA USA
来源
LOCAL BUBBLE AND BEYOND II | 2009年 / 1156卷
关键词
SWCX; Heliosphere; SXRB; ISM; Local Bubble; LOCAL BUBBLE; GAS; NEUTRALS; IONS;
D O I
暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Solar Wind Charge-Exchange (SWCX) is nowadays recognised as a non-negligible source of soft X-ray emission, contributing to an unknown degree to the diffuse soft X-ray background (SXRB). In this paper, we relate the general characteristics of the SWCX emission spectrum between 0.1 and 1 keV and its contribution to the local interstellar SXRB emission in comparison with the unabsorbed thermal component attributed to the supposedly hot (similar to 10(6) K) Local Bubble. At low galactic latitudes (below similar to 30 degrees) our computed SWCX brightness reaches a level comparable to the observed signal, suggesting the absence or a very low pressure of the hot gas close to the disk.
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页码:62 / +
页数:3
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