The Emergence of a Lanthanide-Rich Kilonova Following the Merger of Two Neutron Stars

N. R. Tanvir, A. J. Levan, C. Gonzalez-Fernandez +51

We report the discovery and monitoring of the near-infrared counterpart (AT2017gfo) of a binary neutron-star merger event detected as a gravitational wave source by Advanced LIGO/V…