The Nature of AX J0051-733 in the SMC: A Pulsar Born with Ultrastrong Magnetic Field?
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- 作者：Q. Z. Liu ; J. Z. Yan ; X. D. Li and H. R. Hang
- 关键词：Binaries ; Close– ; pulsars ; Individual ; AX J0051 ; 733– ; stars ; Neutron star– ; X ; rays ; Stars– ; stars ; Emission ; line ; Be
- 刊名：Astrophysics and Space Science
- 出版时间：October, 2006
- 出版年：2006
- 期刊代码：8_0004640X
- 类别：mat
- 卷：305
- 期：2
- 页码：133-138
- 数据来源：sp
摘要
We investigate the nature of the pulsar of the Be/X-ray binary, AX J0051-733. Although the system has a very short orbital period, it meets the basic definition of Be/X-ray binaries. We argue that, in order to interpret such a short orbital period, the initial magnetic field strength of the pulsar must be between 4.2脳1013–5脳1015 G, if typical values of the parameters chosen. Thus, the pulsar was most likely born as a magnetar. We further suggest that magnetar descendants can also be found among the massive X-ray binaries with extremely short-orbit periods, in addition to among the X-ray binaries with very long pulse periods.