SXP 1062:BeXB中的进化磁星?
SXP 1062: an Evolved Magnetar in a BeXB ?
摘要:
SXP 1062是在小麦哲伦星云中新发现的Be/X射线双星,它提供了与超新星遗迹(SNR)强关联的第一个例子。根据信噪比估计的较短年龄,SXP 1062有资格成为同类中最年轻的已知源,约10^4年。在这里,我们讨论了可能的进化情景SXP 1062在试图调和其长的旋转周期,P=1062秒,和短的年龄。我们的研究结果表明,SXP 1062可能拥有一颗中子星,它诞生时具有很大的初始磁场,通常超过~ 10^14 G,然后衰减到~ 10^13 G。
英文摘要:
SXP 1062, a newly discovered Be/X-ray binary in the Small Magellanic Cloud, provides the first example of a robust association with a supernova remnant (SNR). The short age estimated for the SNR qualifies SXP 1062 as the youngest known source in its class, ~ 10^4 yr. Here we discuss possible evolutionary scenarios for SXP 1062 in the attempt to reconcile its long spin period, P=1062 s, and short age. Our results indicate that SXP 1062 may host a neutron star born with a large initial magnetic field, typically in excess of ~ 10^14 G, which then decayed to ~ 10^13 G.
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