Spectral and temporal properties of the ultra-luminous X-ray pulsar in M82 from 15 years of Chandra observations and analysis of the pulsed emission using NuSTAR

  title={Spectral and temporal properties of the ultra-luminous X-ray pulsar in M82 from 15 years of Chandra observations and analysis of the pulsed emission using NuSTAR},
  author={Murray Brightman and Fiona A. Harrison and Dominic J. Walton and Felix Fuerst and A Hornschemeier and Andreas Zezas and Matteo Bachetti and Brian W. Grefenstette and Andrew Francis Ptak and Shriharsh P. Tendulkar and Mihoko Yukita},
  journal={arXiv: High Energy Astrophysical Phenomena},
The recent discovery by Bachetti et al. (2014) of a pulsar in M82 that can reach luminosities of up to 10^40 ergs s^-1, a factor of ~100 the Eddington luminosity for a 1.4 Msol compact object, poses a challenge for accretion physics. In order to better understand the nature of this source and its duty cycle, and in the light of several physical models that have been subsequently published, we conduct a spectral and temporal analysis of the 0.5-8 keV X-ray emission from this source from 15 years… Expand

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