Stellar tidal disruption events (TDEs) are typically discovered by transient emission due to
accretion or shocks of the stellar debris. Yet this luminous flare can be reprocessed by gas …

We present long-duration numerical simulations of the tidal disruption of stars modeled with
accurate stellar structures and spanning a range of pericenter distances, corresponding to …

Upon entering the tidal sphere of a supermassive black hole, a star is ripped apart by tides
and transformed into a stream of debris. The ultimate fate of that debris, and the properties of …

We present a review of the topics of X‐ray stellar tidal disruption events (TDEs) and
changing‐look active galactic nuclei (AGN). Stars approaching a supermassive black hole …

We develop a Newtonian model of a deep tidal disruption event (TDE), for which the
pericenter distance of the star, rp, is well within the tidal radius of the black hole, rt, ie, when …

We discuss applications of the study of the new and barely explored class of changing-look
(CL) narrow-line Seyfert 1 (NLS1) galaxies and comment on their detection with the space …

Tidal disruption events (TDEs) are highly energetic phenomena that occur when a star is
tidally disrupted by the central massive black hole in a galaxy. Fitting the observed X-ray …

During a close encounter between a star and a supermassive black hole, the star can get
disrupted by the black hole's tidal forces, resulting in a tidal disruption event (TDE). The …

AT 2020mot is a typical UV/optical tidal disruption event (TDE) with no radio or X-ray
signatures in a quiescent host. We find an i-band excess and rebrightening along the …

We present the identifications of a flux-limited sample of highly variable X-ray sources on
long time-scales from the second catalogue of the XMM–Newton SLew survey (XMMSL2) …