Constraining the Maximum Mass of Neutron Stars from Multi-messenger Observations of GW170817

  title={Constraining the Maximum Mass of Neutron Stars from Multi-messenger Observations of GW170817},
  author={Ben Margalit and Brian D. Metzger},
  journal={The Astrophysical Journal},
We combine electromagnetic (EM) and gravitational wave (GW) information on the binary neutron star (NS) merger GW170817 in order to constrain the radii $R_{\rm ns}$ and maximum mass $M_{\rm max}$ of NSs. GW170817 was followed by a range of EM counterparts, including a weak gamma-ray burst (GRB), kilonova (KN) emission from the radioactive decay of the merger ejecta, and X-ray/radio emission consistent with being the synchrotron afterglow of a more powerful off-axis jet. The type of compact… 

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