LIGO/Virgo GW170817: Chandra X-ray brightening of the counterpart 108 days since merger. Margutti, R. ; Fong, W. ; Eftekhari, T. ; Alexander, K. ; Berger, E. ; Chornock, R. Abstract Publication: GRB Coordinates Network Pub Date: 2017 Bibcode: 2017GCN.22203....1M