Magellanic cloud X-ray sources observed with ROSAT

被引:52
作者
Cowley, AP [1 ]
Schmidtke, PC [1 ]
McGrath, TK [1 ]
Ponder, AL [1 ]
Fertig, MR [1 ]
Hutchings, JB [1 ]
Crampton, D [1 ]
机构
[1] NATL RES COUNCIL CANADA,DOMINION ASTROPHYS OBSERV,VICTORIA,BC V8X 4M6,CANADA
关键词
D O I
10.1086/133855
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
This paper is the second in a series which presents ROSAT High-Resolution Imager (HRI) observations of previously known X-ray sources in the Magellanic Clouds. This paper includes new data on 31 X-ray sources discovered by Einstein Observatory as well as 16 serendipitous ROSAT sources. Optical photometry and spectroscopy were obtained to search for identifications and to determine the physical nature of these sources. Optical finding charts showing the ROSAT-HRI positions are given for 35 sources, and where appropriate candidates or identified counterparts are marked. Twenty-nine of these sources are optically identified with objects including X-ray binaries and supernova remnants in both the Small and Large Magellanic Clouds, foreground (Galactic) stars, and background active galactic nuclei. For previously known sources, there is evidence that more than half of them exhibit X-ray variability.
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收藏
页码:21 / 38
页数:18
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