DETECTION, IDENTIFICATION, AND OBSERVED PROPERTIES OF LARGE MAGELLANIC CLOUD SUPERSOFT X-RAY SOURCES

被引：39

作者：

COWLEY, AP ^{[1
]}

SCHMIDTKE, PC ^{[1
]}

HUTCHINGS, JB ^{[1
]}

CRAMPTON, D ^{[1
]}

MCGRATH, TK ^{[1
]}

机构：

[1] HERZBERG INST ASTROPHYS,VICTORIA V8X 4M6,BC,CANADA

来源：

ASTROPHYSICAL JOURNAL | 1993年 / 418卷 / 02期

关键词：

BINARIES; CLOSE; STARS; EMISSION-LINE; BE; VARIABLES; OTHER; X-RAYS;

D O I：

10.1086/187117

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A small number of ''supersoft'' X-ray sources has been found in the direction of the Large Magellanic Cloud (LMC), although information has been published for only six of these. It has been suggested that these sources may represent a separate class of low-mass X-ray binaries. In an effort to learn more about the properties of these supersoft sources, new observational data are presented for four of them, including X-ray positions, optical identifications, optical spectroscopy and photometry, and the discovery of a previously unreported supersoft source. Three of the supersoft sources have been optically identified with LMC stars which show strong emission lines of H and He II, typical of accretion disks. The systems appear to be close binary systems, although the properties of the compact stars are not certain.

引用

页码：L63 / L66

页数：4

共 22 条

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