A Thousand Days After the Merger: Continued X-ray Emission from GW170817

A Thousand Days After the Merger: Continued X-ray Emission from GW170817

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 2020 March 9 and 16 (935–942 d after the merger), a total of 8 photons are measured at the source position, corresponding to a signifi...

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Veröffentlicht in:Monthly notices of the Royal Astronomical Society 2020-10, Vol.498 (4), p.5643-5651
Hauptverfasser: Troja, E., Eerten, H. van, Zhang, B., Ryan, G., Piro, L., Ricci, R., O’Connor, B., Wieringa, M.H., Cenko, S. B., Sakamoto, T.
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container_issue 4
container_start_page 5643
container_title Monthly notices of the Royal Astronomical Society
container_volume 498
creator Troja, E.
Eerten, H. van
Zhang, B.
Ryan, G.
Piro, L.
Ricci, R.
O’Connor, B.
Wieringa, M.H.
Cenko, S. B.
Sakamoto, T.
description 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 2020 March 9 and 16 (935–942 d after the merger), a total of 8 photons are measured at the source position, corresponding to a significance of ≈5σ. Radio monitoring with the Australian Telescope Compact Array (ATCA) shows instead that the source has faded below our detection threshold (
doi_str_mv 10.1093/mnras/staa2626
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title A Thousand Days After the Merger: Continued X-ray Emission from GW170817
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