Modeling The Optical Emission Of Tidal Disruption Events

Giuseppe Lodato, C. Bonnerot, E. Rossi, A. Franchini
2016 Zenodo  
In this talk, i will present some new advances in the theory of Tidal Disruption Events (TDE). TDEs occur when a star approaches a SMBH close enough to be torn apart by the black hole tidal field. The rapid accretion of the stellar debris produce a luminous, possibly super-Eddington flare, lighting up an otherwise quiescent black hole. In this talk, I will present some recent results concerning the formation and early evolution of an accretion disc formed by the stellar debris. The structure of
more » ... s. The structure of the disc is strongly dependent on the thermal state of the gas, with efficient or inefficient cooling giving rise to either a thin disc or an extended torus/envelope surrounding the black hole. I will present the results of numerical simulations confirming this picture and including relativistic effects, which are essential for the formation of the disc. Finally, I will discuss the possible development of quasi periodic signals arising from Lense-Thirring precession around a spinning black hole.
doi:10.5281/zenodo.163790 fatcat:f2yzjpzed5cqfhn6wec3nosoye