Evidence for inflows and outflows in the nearby black hole transient Swift J1727.8โ162
Evidence for inflows and outflows in the nearby black hole transient Swift J1727.8โ162
We present 20 epochs of optical spectroscopy obtained with the GTC-10.4m telescope across the bright discovery outburst of the black hole candidate Swift J1727.8โ162. The spectra cover the main accretion states and are characterised by the presence of hydrogen and helium emission lines, commonly observed in these objects. They show โฆ