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首页> 外文期刊>PASJ: Publications of the Astronomical Society of Japan >Suzaku Observation of the Supergiant Fast X-Ray Transient AX J1841.0—0536
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Suzaku Observation of the Supergiant Fast X-Ray Transient AX J1841.0—0536

机译：朱雀对超快速X射线瞬变AX J1841.0—0536的观察

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摘要

We observed the supergiant fast X-ray transient AX J1841.0—0536 with Suzaku in 2011 March. Many short flares with time-scales of a few hundred seconds and a large flare with a peak flux (1.0-10keV) of. greater,similar2 x 10~10 ergs~(-1) cm(-2) were detected. The broad-band (1.0-40keV) spectrum was fitted with a cut-off power-law continuum plus a Ka line from a neutral iron absorbed by partial covering gas. In addition, a broad absorption feature was found in a high-energy band. The photon index of the power-law is 1.01 ± 0.12 in a low-luminosity state, and decreases (becomes hard) with increasing luminosity. On the other hand, the absorption column density and the iron line equivalent width are nearly constant. The covering fraction does not vary significantly, except for the full coverage epoch at the end of the large flare. We thus propose that the X-ray emission is due to subsequent in-falls of many small blobs.
机译：我们在2011年3月用朱雀（Suzaku）观测了超快速的X射线瞬变AX J1841.0-0536。许多短火炬的时标为几百秒，而大火炬的峰值通量为（1.0-10keV）。更大，检测到相似的2 x 10〜10 ergs〜（-1）cm（-2）。宽带光谱（1.0-40keV）装有截止功率定律连续谱，加上由中性铁吸收并被部分覆盖气体吸收的Ka谱线。另外，在高能带中发现了广泛的吸收特征。在低发光度状态下，幂律的光子指数为1.01±0.12，并且随着发光度的增加而降低（变硬）。另一方面，吸收塔密度和铁线当量宽度几乎恒定。覆盖率变化不大，除了在大耀斑末尾的整个覆盖期。因此，我们建议X射线的发射是由于许多小斑点的随后进入。

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