Tidal Disruption Events

TL;DR

Tidal disruption events occur when stars are torn apart by black holes, offering insights into galactic nuclei and supermassive black hole properties through their luminous transient signals.

Contribution

This paper reviews the mechanisms, observational signatures, and scientific significance of tidal disruption events involving supermassive black holes.

Findings

TDE light curves depend on black hole properties.

TDE observations help constrain SMBH mass function.

TDEs reveal feeding behavior of black holes.

Abstract

Stars that orbit too close to a black hole can be ripped apart by strong tides, producing a type of luminous transient event called a ``tidal disruption event" (TDE). Tidal disruption events of stars by supermassive black holes (SMBHs) provide windows into the nuclei of galaxies at size scales that are difficult to observe directly outside our own galactic neighborhood. They provide a unique opportunity to study these supermassive black holes under feeding conditions that change dramatically over ~week-month timescales, and that regularly reach super-Eddington mass inflow rates. Their light curves are dependent on the properties of the disrupting black hole, and can be used to help constrain the lower mass end of the SMBH mass function -- a region of parameter space that is difficult to access with classic dynamical mass measurements.