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学术报告:Ultraluminous X-ray pulsar: accreting magnetar?

时间:3月7日(周六)上午9点
地点:高能所报告厅406会议室
报告人:仝号(Xinjiang Astronomical Observatory, Chinese Academy of Sciences)
主持人:宋黎明 研究员
题目:Ultraluminous X-ray pulsar: accreting magnetar?
摘要:Abstract One ultraluminous X-ray source in M82 is identified as an accreting neutron
star recently (named as NuSTAR J095551+6940.8). It has a super-Eddington luminosity
and is spinning up. For an aged magnetar, it is more likely to be a low magnetic field
magnetar. An accreting low magnetic field magnetar may explain both the super-Eddington
luminosity and the rotational behavior of this source. Considering the effect of beaming,
the spin-up rate is understandable using the traditional form of accretion torque. The
transient nature, spectral properties of M82 X-2 are discussed. The theoretical period
range ofaccreting magnetar is provided. Three observational appearances of accreting
magnetarsare summarized.
Key words: accretion –pulsars: individual (NuSTAR J095551+6940.8) – stars:
magnetars – stars: neutron
Based on http://adsabs.harvard.edu/cgi-bin/bib_query?arXiv:1411.3168
and references therein.

报告人简介:
Hao TONG (仝号)
http://www.escience.cn/people/tonghao/index.html

h.tong