Black holes formed by direct collapse: observational evidences

被引:2
|
作者
Mirabel, I. F. [1 ,2 ]
机构
[1] Univ Buenos Aires, CONICET, Inst Astron & Space Phys, Ciudad Univ,Av Cantilo S-N, RA-1428 Buenos Aires, DF, Argentina
[2] CEA Saclay, CEA, Lab AIM Paris Saclay, DSM,Irfu,CNRS, Pt Courrier 131, F-91191 Gif Sur Yvette, France
来源
NEW FRONTIERS IN BLACK HOLE ASTROPHYSICS | 2017年 / 12卷 / S324期
关键词
black hole physics; gravitational waves; X-rays: binaries; supernovae: general;
D O I
10.1017/S1743921316012904
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Binary black holes as the recently detected sources of gravitational waves can be formed from massive stellar binaries in the field or by dynamical interactions in clusters of high stellar density, if the black holes are the remnants of massive stars that collapsed without natal kicks that would disrupt the binary system or eject the black holes from the cluster before binary black hole formation. Here are summarized and discussed the kinematics in three dimensions of space of five Galactic black hole X-ray binaries. For Cygnus X-1 and GRS 1915+105 it is found that the black holes of similar to 15 M-circle dot and similar to 10 M-circle dot in these sources were formed in situ, without energetic kicks. These observations suggest that binary black holes with components of similar to 10 M-circle dot may have been prolifically produced in the universe.
引用
收藏
页码:303 / 306
页数:4
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