A new way to detect massive black holes in galaxies: The stellar remnants of tidal disruption

被引：21
|
作者：
Di Stefano, R
Greiner, J
Murray, S
Garcia, M
机构：
[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
[2] Tufts Univ, Dept Phys & Astron, Medford, MA 02155 USA
[3] Astrophys Inst Potsdam, D-14482 Potsdam, Germany
来源：
ASTROPHYSICAL JOURNAL | 2001年 / 551卷 / 01期
关键词：
galaxies : individual (M31); X-rays : stars;
D O I：
10.1086/319835
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We point out that the tidal disruption of a giant may leave a luminous (10(35)-10(39) ergs s(-1)), hot (10-100 eV) stellar core. The "supersoft" source detected by Chandra at the center of M31 may be such a core; whether or not it is, the observations have shown that such a core is detectable, even in the center of a galaxy. We therefore explore the range of expected observational signatures and how they may be used to (1) test the hypothesis that the M31 source is a remnant of tidal stripping and (2) discover evidence of black holes and disruption events in other galaxies.
引用
收藏
页码：L37 / L40
页数：4
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