A transmission spectrum of the planet candidate WD 1856+534 b and a lower limit to its mass

R. Alonso, P. Rodríguez-Gil, P. Izquierdo +7

The cool white dwarf WD 1856+534 was found to be transited by a Jupiter-sized object with a mass at or below 14 M${}_{\mathrm{Jup}}$. We used the GTC telescope to obtain and analyse phot…