The Spectral Evolution of AT 2018dyb and the Presence of Metal Lines in Tidal Disruption Events
The Spectral Evolution of AT 2018dyb and the Presence of Metal Lines in Tidal Disruption Events
We present light curves and spectra of the tidal disruption event (TDE) ASASSN-18pg / AT 2018dyb spanning a period of one year. The event shows a plethora of strong emission lines, including the Balmer series, He II, He I and metal lines of O III $\lambda$3760 and N III $\lambda\lambda$ …