Observations of GRO J1744–28 in quiescence with XMM-Newton

  title={Observations of GRO J1744–28 in quiescence with XMM-Newton},
  author={Victor Doroshenko and Valery F. Suleimanov and Sergey S. Tsygankov and Juhani M{\"o}nkk{\"o}nen and Long Ji and Andrea Santangelo},
  journal={Astronomy \& Astrophysics},
We report on the deep observations of the “bursting pulsar” GRO J1744–28, which were performed with XMM-Newton and aimed to clarify the origin of its X-ray emission in quiescence. We detect the source at a luminosity level of ∼1034 erg s−1 with an X-ray spectrum that is consistent with the power law, blackbody, or accretion-heated neutron star atmosphere models. The improved X-ray localization of the source allowed us to confirm the previously identified candidate optical counterpart as a… 
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