Super-Eddington accretion on to the neutron star NGC 7793 P13: Broad-band X-ray spectroscopy and ultraluminous X-ray sources

@article{Walton2018SuperEddingtonAO,
  title={Super-Eddington accretion on to the neutron star NGC 7793 P13: Broad-band X-ray spectroscopy and ultraluminous X-ray sources},
  author={Dominic J. Walton and Felix Fuerst and Fiona A. Harrison and Daniel K. Stern and Matteo Bachetti and Didier Barret and Murray Brightman and Andrew C. Fabian and Matthew J. Middleton and Andrew F. Ptak and Lian Tao},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2018},
  volume={473},
  pages={4360-4376}
}
We present a detailed, broad-band X-ray spectral analysis of the ultraluminous X-ray source (ULX) pulsar NGC 7793 P13, a known super-Eddington source, utilizing data from the XMM–Newton, NuSTAR and Chandra observatories. The broad-band XMM–Newton+NuSTAR spectrum of P13 is qualitatively similar to the rest of the ULX sample with broad-band coverage, suggesting that additional ULXs in the known population may host neutron star accretors. Through time-averaged, phase-resolved and multi-epoch… 

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