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

页码：517 / 524

页数：8

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