A thousand days after the merger: Continued X-ray emission from GW170817

  title={A thousand days after the merger: Continued X-ray emission from GW170817},
  author={Eleonora Troja and Hendrik Jan van Eerten and B. Zhang and G Ryan and Luigi Piro and Roberto Ricci and B O’Connor and Mark Hendrik Wieringa and S. B. Cenko and Takanori Sakamoto},
  journal={Monthly Notices of the Royal Astronomical Society},
Recent observations with the Chandra X-ray telescope continue to detect X-ray emission from the transient GW170817. In a total exposure of 96.6 ks, performed between March 9 and March 16 2020 (935 d to 942 d after the merger), a total of 8 photons are measured at the source position, corresponding to a significance of about 5 sigma. Radio monitoring with the Australian Telescope Compact Array (ATCA) shows instead that the source has faded below our detection threshold (<33 uJy, 3 sigma). By… Expand

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