New X-ray quasars behind the Small Magellanic Cloud

被引：13

作者：

Dobrzycki, A

Stanek, KZ

Macri, LM

Groot, PJ

机构：

[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[2] Natl Opt Astron Observ, Tucson, AZ 85719 USA

[3] Univ Nijmegen, Dept Astrophys, NL-6500 GL Nijmegen, Netherlands

来源：

ASTRONOMICAL JOURNAL | 2003年 / 126卷 / 02期

关键词：

Magellanic Clouds; quasars : general;

D O I：

10.1086/376740

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present five X-ray quasars behind the Small Magellanic Cloud, increasing the number of known quasars behind the SMC by similar to40%. They were identified via follow-up spectroscopy of serendipitous sources from the Chandra X-Ray Observatory matched with objects from the OGLE database. All quasars lie behind dense parts of the SMC and could be very useful for proper-motion studies. We analyze X-ray spectral and timing properties of the quasars. We discuss applications of those and other recently discovered quasars behind the SMC to the studies of absorption properties of the Cloud, its proper motion, and for establishing the geometrical distance to the SMC.

引用

页码：734 / 741

页数：8

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