Chandra observations of the X-ray-luminous star-forming galaxy merger ARP 299

被引：63
|
作者：
Zezas, A
Ward, MJ
Murray, SS
机构：
[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
[2] Univ Leicester, Xray Astron Grp, Leicester LE2 7RH, Leics, England
来源：
ASTROPHYSICAL JOURNAL | 2003年 / 594卷 / 01期
关键词：
galaxies : active; galaxies; individual; (Arp; 299; IC; 694; NGC; 3690); galaxies : interactions; galaxies : peculiar; X-rays : binaries; X-rays : galaxies;
D O I：
10.1086/378144
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report the results of a Chandra observation of the X-ray-luminous star-forming galaxy Arp 299 (NGC 3690/IC 694). We detect 18 discrete X-ray sources with luminosities above similar to10(39) ergs s(-1) (0.5-8.0 keV band), which contribute similar to40% of the total galactic emission in this band. The remaining emission is associated with a diffuse component spatially coincident with regions of widespread star formation. We detect X-ray emission from both nuclei. One of the discrete sources within the complex nuclear region of NGC 3690 is found to have a very hard spectrum, and therefore we associate it with the origin of the active galactic nucleus-like spectrum that has also been detected at high X-ray energies using BeppoSAX.
引用
收藏
页码：L31 / L34
页数：4
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