Fading of the X-Ray Afterglow of Neutron Star Merger GW170817/GRB 170817A at 260 Days

@article{Nynka2018FadingOT,
  title={Fading of the X-Ray Afterglow of Neutron Star Merger GW170817/GRB 170817A at 260 Days},
  author={Melania Nynka and John J. Ruan and Daryl Haggard and Phil A. Evans},
  journal={The Astrophysical Journal Letters},
  year={2018},
  volume={862}
}
The multi-wavelength electromagnetic afterglow from the binary neutron star merger GW170817/GRB 170817A has displayed long-term power-law brightening, and has presented challenges to post-merger models of the non-thermal emission. The most recent radio observations up to 200 days post-merger suggest that the afterglow has finally peaked and may now be fading, but fading has not been confirmed in the X-rays. We present new, deep Chandra observations of GW170817/GRB 170817A at 260 days post… 

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