The discovery of a massive white dwarf in the peculiar binary system HD 49798/RX J0648.0–4418

@article{SMereghetti2010TheDO,
  title={The discovery of a massive white dwarf in the peculiar binary system HD 49798/RX J0648.0–4418},
  author={S.Mereghetti and A.Tiengo and P.Esposito and Nicola La Palombara and G.L.Israel and Leopoldo Milano and -INAF and Osserv. Astron. Roma},
  journal={arXiv: High Energy Astrophysical Phenomena},
  year={2010},
  volume={1248},
  pages={85-88}
}
An XMM‐Newton observation performed in May 2008 has confirmed that the 13 seconds pulsations in the X‐ray binary HD49798/RX J0648.0–4418 are due to a rapidly rotating white dwarf. From the pulse time delays induced by the 1.55 days orbital motion, and the system’s inclination, constrained by the duration of the X‐ray eclipse discovered in this observation, we could derive a mass of 1.28±0.05 M⊙ for the white dwarf. The future evolution of this post common envelope binary system will likely… 
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