Discovery of a 3.5 keV line in the Galactic Centre and a critical look at the origin of the line across astronomical targets

@article{Jeltema2015DiscoveryOA,
  title={Discovery of a 3.5 keV line in the Galactic Centre and a critical look at the origin of the line across astronomical targets},
  author={T. Jeltema and S. Profumo},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2015},
  volume={450},
  pages={2143-2152}
}
  • T. Jeltema, S. Profumo
  • Published 2015
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • We examine the claimed excess X-ray line emission near 3.5 keV including both a new analysis of XMM-Newtonobservations of the Milky Way center and a reanalysis of the data on M 31 and clusters. In no case do we find conclusive evidence for an excess. In the case of the Galactic center we show that known plasma lines, including in particular K XVIII lines at 3.48 and 3.52 keV, provide a satisfactory fit to the XMM data. We estimate the expected flux of the K XVIII lines and find that the… CONTINUE READING
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