ASCA Observation of the Quiescent X-Ray Counterpart to SGR 1627–41
ASCA Observation of the Quiescent X-Ray Counterpart to SGR 1627–41
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ASCA 观测 SGR 1627–41 的静态 X 射线对应物
DOI：
10.1086/312424
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
M. Sugizaki
中科院分区：
文献类型：
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作者：
K. Hurley;T. Strohmayer;P. Li;C. Kouveliotou;P. Woods;J. van Paradijs;T. Murakami;D. Hartmann;I. Smith;M. Ando;A. Yoshida;M. Sugizaki
我们提出了一个2-10千电子伏ASCA观察周围的软伽玛中继站SGR 1627-41的领域。在这次观测中探测到一个静止的X射线源，其位置与最近发现的BeppoSAX X射线源的位置和行星际网络对这一软伽马中继器的定位一致。在2-10 keV的X射线中，X射线源的光谱同样可以用幂律函数、黑体函数或韧致辐射函数来拟合，其未吸收通量为1.5 × 10-12 ergs cm-2 s-1。我们没有证实通量衰减趋势的延续，也没有发现周期性的证据，这两点在早先的BeppoSAX号卫星观测中均已注意到。
We present a 2-10 keV ASCA observation of the field around the soft gamma repeater SGR 1627-41. A quiescent X-ray source, whose position is consistent both with that of a recently discovered BeppoSAX X-ray source and with the Interplanetary Network localization for this soft gamma repeater, was detected in this observation. In 2-10 keV X-rays, the spectrum of the X-ray source may be fit equally well by a power-law, blackbody, or bremsstrahlung function, with unabsorbed flux ≈5 × 10-12 ergs cm-2 s-1. We do not confirm a continuation of a fading trend in the flux, and we find no evidence for periodicity, both of which were noted in the earlier BeppoSAX observations.