Study on the magnetic field strength of NGC 300 ULX1

Y. Y. Pan, Z. S. Li, C. M. Zhang +1

NGC 300 ULX1 is a pulsating ultraluminous X-ray source (PULX) with the longest spin period of $P\simeq 31.6\mathrm{s}$ and a high spin-up rate of $\dot P\simeq5.56\times10^{-7}\,\rm s\…