本学期学术活动

Jifeng Liu:Ultraluminous supersoft X-ray sources

2016-10-13    点击:

报告题目:Ultraluminous supersoft X-ray sources

报 告 人:Jifeng Liu (NAOC)

报告时间:2016年10月13日(周四)下午2:00

报告地点:蒙民伟科技南楼S727

报告摘要:While ultraluminous supersoft X-ray sources (ULSs) bear features for intermediate mass black holes or very massive white dwarfs possibly close to Chandrasekhar mass limit, our recent discovery of processing relativistic baryonic jets from a prototype ULS in M81 demonstrate that they are not IMBHs or WDs, but black holes accreting at super-Eddington rates. This discovery strengthens the recent ideas that ULXs are stellar black holes with supercritical accretion, and provides a vivid manifestation of what happens when a black hole devours too much, that is, it will generate thick disk winds and fire out sub-relativistic baryonic jets along the funnel as predicted by recent numerical simulations.