An accreting low magnetic field magnetar for the ultraluminous X-ray source in M82

被引：0
|
作者：
Hao Tong [1 ]
机构：
[1] Xinjiang Astronomical Observatory,Chinese Academy of Sciences
来源：
Research in Astronomy and Astrophysics | 2015年 / 15卷 / 04期
基金：
中国国家自然科学基金;
关键词：
accretion pulsars:individual(Nu STAR J095551+6940.8) stars:magnetars stars:neutron;
D O I：
暂无
中图分类号：
P145.6 [脉冲星（中子星）]; P172.2 [X射线天文学];
学科分类号：
070401 ;
摘要：
One ultraluminous X-ray source in M82 has recently been identified as an accreting neutron star(named Nu STAR J095551+6940.8).It has a super-Eddington luminosity and is spinning up.An aged magnetar is more likely to be a low magnetic field magnetar.An accreting low magnetic field magnetar may explain both the superEddington 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 and spectral properties of M82 X-2 are discussed.The theoretical range of periods for accreting magnetars is provided.Three observational appearances of accreting magnetars are summarized.
引用
收藏
页码：517 / 524
页数：8
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