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

页码：L31 / L34

页数：4

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