arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1503.01711astro-ph.HE
收藏

IC 4320中的超亮X射线源候选者:另一个HLX咬灰尘

The hyperluminous X-ray source candidate in IC 4320: another HLX bites the dust

Andrew D Sutton, Timothy P. Roberts, Jeanette C. Gladstone, Dominic J. Walton

摘要:

超亮X射线源(HLX)的已知成员数量很少,但它们被认为是超亮X射线源(ULX)中最有可能的中等质量黑洞(IMBH)候选者,因此引起了极大的兴趣。在这里,我们报告的光学测光和光谱的HLX候选人与星系IC 4320,揭示它是一个背景活动星系核。我们讨论的影响,排除这个对象从少量的充分研究的HLXs,这似乎突出了良好的IMBH候选ESO 243-49 HLX-1和少数其他HLXs之间的特性差异。

英文摘要:

The known members of the class of hyperluminous X-ray sources (HLXs) are few in number, yet they are of great interest as they are regarded as the likeliest intermediate-mass black hole (IMBH) candidates amongst the wider population of ultraluminous X-ray sources (ULXs). Here we report optical photometry and spectroscopy of a HLX candidate associated with the galaxy IC 4320, that reveal it is a background AGN. We discuss the implications of the exclusion of this object from the small number of well-studied HLXs, that appears to accentuate the difference in characteristics between the good IMBH candidate ESO 243-49 HLX-1 and the small handful of other HLXs.

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。

↑