ROSAT DISCOVERY OF BRIGHT X-RAY SOURCES IN GLOBULAR-CLUSTERS TER-6 AND NGC-6652

被引：0

作者：

PREDEHL, P ^{[1
]}

HASINGER, G ^{[1
]}

VERBUNT, F ^{[1
]}

机构：

[1] ASTRON INST, 3508 TA UTRECHT, NETHERLANDS

来源：

ASTRONOMY & ASTROPHYSICS | 1991年 / 246卷 / 01期

关键词：

CLUSTER; GLOBULAR; X-RAYS; BINARIES;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Two previously unknown X-ray sources in the globular clusters Ter 6 and NGC 6652 have been detected by ROSAT, during the sky survey. The source in Ter 6 has a luminosity between 0.5 and 2.0 keV of approximately 2.9 x 10(36) erg s-1. The source in NGC 6652 has a luminosity approximately 7.6 x 10(35) erg s-1. Both sources are brighter than previous detection limits. These discoveries add two to the small number of known bright X-ray sources in globular clusters. The presence of bright X-ray sources in Ter 6 and NGC 6652 is compatible with the idea that such sources are formed via 2-body tidal capture.

引用

页码：L21 / L23

页数：3