ASCA discovery of an X-ray pulsar in the error box of SGR 1900+14

被引：172

作者：

Hurley, K ^{[1
]}

Li, P

Kouveliotou, C

Murakami, T

Ando, M

Strohmayer, T

van Paradijs, J

Vrba, F

Luginbuhl, C

Yoshida, A

Smith, I

机构：

[1] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA

[2] NASA, George C Marshall Space Flight Ctr, Univ Space Res Assoc, Huntsville, AL 35812 USA

[3] Inst Space & Astronaut Sci, Sagamihara, Kanagawa 229, Japan

[4] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[5] Univ Alabama, Huntsville, AL 35899 USA

[6] Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1098 SJ Amsterdam, Netherlands

[7] USN Observ, Flagstaff Stn, Flagstaff, AZ 86002 USA

[8] RIKEN, Wako, Saitama 35101, Japan

[9] Rice Univ, Dept Space Phys & Astron, Houston, TX 77005 USA

来源：

ASTROPHYSICAL JOURNAL | 1999年 / 510卷 / 02期

基金：

美国国家航空航天局;

关键词：

gamma rays : bursts; stars : neutron; supernova remnants; X-rays : stars;

D O I：

10.1086/311820

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a 2-10 keV ASCA observation of the field around the soft gamma repeater SGR 1900+14. One quiescent X-ray source was detected in this observation, and it was in the SGR error box. In 2-10 keV X-rays, its spectrum may be fitted by a power Law with index -2.2, and its unabsorbed flux is 9.6 x 10(-12) ergs cm(-2) s(-1). We also find a clear 5.16 s period. The properties of the three well-studied soft gamma repeaters are remarkably similar to one another, and they provide evidence that all off them are associated with young, strongly magnetized neutron stars in supernova remnants.

引用

页码：L111 / L114

页数：4

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