| タイトル | Sigma observations of the low mass X-ray binaries of the galactic bulge |
| 著者（英） | Goldwurm, A.; Denis, M.; Vedrenne, G.; Sunyaev, R.; Roques, J. P.; Faisse, S.; Churazov, E.; Mandrou, P.; Bouchet, L.; Paul, J. |
| 発行日 | 1995-05-01 |
| 言語 | eng |
| 内容記述 | 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 greater than 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 SIGMMA are presented and discussed. |
| NASA分類 | ASTRONOMY |
| レポートNO | 95A76062 |
| 権利 | Copyright |
|
