THE SOFT-X-RAY TRANSIENT GS2000 + 25 .2. AN ELLIPSOIDAL MODULATION IN QUIESCENCE

被引：30

作者：

CALLANAN, PJ ^{[1
]}

CHARLES, PA ^{[1
]}

机构：

[1] ROYAL GREENWICH OBSERV,E-38780 SANTA CRUZ PALMA,SPAIN

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1991年 / 249卷 / 03期

关键词：

D O I：

10.1093/mnras/249.3.573

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results of a photometric study of the optical counterpart of the X-ray transient GS2000 + 25 in quiescence. With a mean R magnitude of approximately 21.2, we present evidence for short-term variability on a time-scale of hours which is consistent with an ellipsoidal modulation of the secondary with a period of 4.1 hr. This indicates an orbital period of approximately 8.2 hr. We compare the properties of GS2000 + 25 with the soft X-ray transient A0620-00.

引用

页码：573 / 576

页数：4

共 30 条

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[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1991, 249 (03) : 567 - 572
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[J]. ASTROPHYSICAL JOURNAL, 1988, 335 (02) : L75 - L78

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