X-raying the Galactic interstellar medium:: First all-sky correlation of X-ray and HI data

被引：0
|
作者：
Pradas, J [1 ]
Kerp, J [1 ]
Kalberla, PMW [1 ]
Arnal, EM [1 ]
Bajaja, E [1 ]
Morras, R [1 ]
Pöppel, WGL [1 ]
机构：
[1] Univ Bonn, Inst Radioastron, D-53121 Bonn, Germany
来源：
MILKY WAY SURVEYS THE STRUCTURE AND EVOLUTION OF OUR GALAXY | 2004年 / 317卷
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The 3-D structure and composition of the Galactic interstellar medium can be deduced from soft X-ray absorption observations. For this purpose, we cross-correlate the ROSAT all-sky survey with the H I 21-cm line allsky distribution provided by the Leiden/Dwingweloo and Instituto Argentino de Radioastronorma surveys. We analyse the data for the whole ROSAT-PSPC energy window (0.1 keV to 2.1 keV) to derive a consistent model of the diffuse X-ray background radiation. This approach allows to deduce the 3-D structure of X-ray absorbing and emitting gas and to constrain the distance to some high(HVC) and intermediate-velocity cloud (IVC) complexes.
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页码：29 / 31
页数：3
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