Dynamical confirmation for a black hole in the X-ray transient Swift
J1727.8-1613
Dynamical confirmation for a black hole in the X-ray transient Swift
J1727.8-1613
The X-ray transient Swift J1727.8-1613 ended its 10-month discovery outburst on June of 2024, when it reached an optical brightness comparable to pre-discovery magnitudes. With the aim of performing a dynamical study, we launched an optical spectroscopy campaign with the GTC telescope. We detect the companion star and construct its …