Variable low-mass X-ray binaries in early-type galaxies

被引：0

作者：

Sivakoff, Gregory R. ^{[1
]}

Jordan, Andres ^{[2
]}

Juett, Adrienne M. ^{[3
]}

Sarazin, Craig L. ^{[4
]}

Irwin, Jimmy A. ^{[5
]}

机构：

[1] Ohio State Univ, Dept Astron, 140 W 18th Ave, Columbus, OH 43210 USA

[2] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[3] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[4] Univ Virginia, Dept Astron, Charlottesville, VA 22904 USA

[5] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA

来源：

POPULATION EXPLOSION: THE NATURE AND EVOLUTION OF X-RAY BINARIES IN DIVERSE ENVIRONMENTS | 2008年 / 1010卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

As the Chandra X-ray Observatory mission matures, increasing numbers of nearby galaxies axe being observed multiple times, sampling the variability of extragalactic X-ray binaries on timescales extending from seconds to years. We present results on luminous low-mass X-ray binaries from several early-type galaxies. We show that instantaneous LMXB luminosity functions of early-type galaxies do not significantly change between observations; a relatively low fraction of sources are strongly variable on less than or similar to 5yr timescales. We discuss the implications that a relatively small number of transient LMXBs are being discovered in early-type galaxies.

引用

页码：308 / +

页数：2

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