Tidal Disruption of Stars by Supermassive Black Holes -- XMM-Newton
  Highlights and the Next Decade
  This article provides a summary of XMM-Newton highlights on stellar tidal
disruption events. First found with ROSAT, ongoing and upcoming sky surveys
will detect these events in the 1000s. In X- rays, tidal disruption events
(TDEs) provide us with powerful new probes of accretion physics under extreme
conditions and on short timescales and of relativistic effects near the SMBH,
of the formation and evolution of disk winds near or above the Eddington limit,
and of the processes of high-energy emission from newly launched radio jets.
TDEs serve as signposts of the presence of dormant, single black holes at the
cores of galaxies, and of binary black holes as well, since TDE lightcurves are
characteristically different in the latter case. XMM-Newton has started to
contribute to all of these topics, and a rich discovery space is opening up in
the next decade.
