SIGMA OBSERVATIONS OF THE LOW-MASS X-RAY BINARIES OF THE GALACTIC BULGE

被引：10

作者：

GOLDWURM, A

DENIS, M

PAUL, J

FAISSE, S

ROQUES, JP

BOUCHET, L

VEDRENNE, G

MANDROU, P

SUNYAEV, R

CHURAZOV, E

GILFANOV, M

FINOGENOV, A

VIKHLININ, A

DYACHKOV, A

KHAVENSON, N

KOVTUNENKO, V

机构：

[1] CTR ETUD SPATIALE RAYONNEMENTS,F-31029 TOULOUSE,FRANCE

[2] SPACE RES INST,MOSCOW 117296,RUSSIA

来源：

GAMMA RAY ASTRONOMY | 1995年 / 15卷 / 05期

关键词：

D O I：

10.1016/0273-1177(94)00032-V

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The soft gamma-ray telescope (35-1300 keV) SIGMA aboard the high energy GRANAT space observatory has been monitoring the Galactic Bulge region for more than 2000 h of effective time since March 1990. In the resulting average 35-75 keV image we detected ten sources at a level of > 5 standard deviations, 6 of which can be identified with low mass X-ray binaries (LMXB). Among them, one is the 1993 X-ray nova in Ophiuchus (GRS 1726-249), one is an X-ray pulsar (GX 1+4), two are associated with X-ray bursters (GX 354-0 and A 1742-294) and two with bursting X-ray binaries in the globular clusters Terzan 2 and Terzan 1. Their spectral and long term variability behavior as measured by SIGMA are presented and discussed.

引用

页码：41 / 44

页数：4