arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0901.3826astro-ph.HEastro-ph.GA
收藏

IGRJ16479-4514的第一次X射线日食?

The first X-ray eclipse of IGRJ16479-4514?

E. Bozzo, L. Stella, G. Israel, M. Falanga, S. Campana

摘要:

我们报告了对超巨星快X射线瞬变IGRJ 16479 - 4514的第一次长(~32 ks)指向XMM-牛顿观测。对这次观测的时间、光谱和空间分析的结果表明,X射线源IGRJ 16479 - 4514经历了一次突然的遮蔽,可能是一次超巨星伴星的X射线食。我们还发现了源周围软X射线扩展晕的证据,这最容易解释为由于沿IGRJ 16479 - 4514视线的尘埃散射。

英文摘要:

We report on the first long (~32 ks) pointed XMM-Newton observation of the supergiant fast X-ray transient IGRJ16479-4514. Results from the timing, spectral and spatial analysis of this observation show that the X-ray source IGRJ16479-4514 underwent an episode of sudden obscuration, possibly an X-ray eclipse by the supergiant companion. We also found evidence for a soft X-ray extended halo around the source that is most readily interpreted as due to scattering by dust along the line of sight to IGRJ16479-4514.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑