论文标题
NGC 300 ULX1的磁场强度的研究
Study on the magnetic field strength of NGC 300 ULX1
论文作者
论文摘要
NGC 300 ULX1是一种脉动超血X射线源（PULX），最长的旋转期为$ p \ simeq31.6 \，\ rm s $，$ \ dot p \ dot p \ simeq5.56 \ simeq5.56 \ times10^{-7} { - 7}} \，\ rm s \ rm s \，在本文中，使用最近观察到的参数在首次检测到脉动后，使用最近观察到的参数，NGC 300 ULX1的推断磁场为$ \ sim3.0 \ times10^{14} \，\ rm g $。根据磁场的进化模拟和自旋时期，在伴随质量和增生速率限制的条件下，它将成为回收的脉冲星或毫秒的脉冲星。我们建议NGC 300 ULX1是一种磁盘，其超级爱丁顿的发光度。我们还建议在确认的PULX中可能还有其他吸收磁场。这样的PULX将有助于理解磁场的演化和毫秒的脉冲星形成，其磁场比$ \ sim10^{9} \，\ rm g $强。
NGC 300 ULX1 is a pulsating ultraluminous X-ray source (PULX) with the longest spin period of $P\simeq31.6\,\rm s$ and a high spin-up rate of $\dot P\simeq5.56\times10^{-7}\,\rm s\,s^{-1}$ that is ever seen in the confirmed PULXs. In this paper, the inferred magnetic field of NGC 300 ULX1 is $\sim3.0\times10^{14}\,\rm G$ using the recent observed parameters after its first detection of pulsations. According to the evolved simulation of the magnetic field and the spin period, it will become a recycled pulsar or a millisecond pulsar under the conditions of the companion mass and the accretion rate limitation. We suggest that NGC 300 ULX1 is an accreting magnetar accounting for its super Eddington luminosity. We also propose that there might be other accreting magnetars in the confirmed PULXs. Such PULXs will be helpful for understanding the magnetar evolution and the millisecond pulsar formation whose magnetic field is stronger than $\sim10^{9}\,\rm G$.
