<i>Swift</i>-XRT follow-up of gravitational wave triggers during the third aLIGO/Virgo observing run
<i>Swift</i>-XRT follow-up of gravitational wave triggers during the third aLIGO/Virgo observing run
The Neil Gehrels Swift Observatory followed up 18 gravitational wave (GW) triggers from the LIGO/Virgo collaboration during the O3 observing run in 2019/2020, performing approximately 6500 pointings in total. Of these events, four were finally classified (if real) as binary black hole (BH) triggers, six as binary neutron star (NS) …