A Chandra survey of nearby spiral galaxies

被引：1
|
作者：
Kilgard, RE
Krauss, MI
Kaaret, P
Prestwich, AH
Ward, MJ
机构：
[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
[2] Univ Leicester, Leicester LE1 7RH, Leics, England
[3] MIT, Dept Phys, Cambridge, MA 02139 USA
来源：
ASTRONOMISCHE NACHRICHTEN | 2003年 / 324卷 / 1-2期
关键词：
surveys; X-rays; galaxies : spiral;
D O I：
10.1002/asna.200310031
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present results from a Chandra survey of I I nearby, face-on spiral galaxies. 24 observations totalling 900 ks of new and archival Chandra data reveal more than 1000 X-ray point sources associated with the galaxies, diffuse emission, and hundreds of serendipitous sources. We discuss source populations and luminosity functions and show that the slope of the X-ray luminosity function is correlated with the star formation rate in the galaxies. We also discuss ultraluminous X-ray sources in comparison with sources within the Milky Way. Finally, we discuss ongoing work on source classification based upon X-ray colors and spectra, position within the host galaxies, and multiwavelenth counterparts.
引用
收藏
页码：121 / 123
页数：3
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