259 citations · 753 across the 14 of their papers we have counts for
14 papers · 1 filter
Tidal disruption rates of stars in observed galaxies
D. Syer, A. Ulmer
We derive the rates of capture, Ndot, of main sequence turn off stars by the central massive black hole in a sample of galaxies from Magorrian et al. 1998. The disruption rates are…
Tidal Disruption Eddington Envelopes around Massive Black Holes
Andrew Ulmer, Bohdan Paczynski, Jeremy Goodman
Optically-thick envelopes may form following the tidal disruption of a star by a massive black hole. Such envelopes would reprocess hard radiation from accretion close to the black…
Evolution of Thick Accretion Disks Produced by Tidal Disruption Events
Andrew Ulmer
Geometrically thick disks may form after tidal disruption events, and rapid accretion may lead to short flares followed by long-term, lower-level emission. Using a novel accretion…
Revisiting the Modified Eddington Limit for Massive Stars
Andrew Ulmer, Edward L. Fitzpatrick
We have determined the location of the line-opacity modified Eddington limit for stars in the LMC using the most recent atmosphere models combined with a precise mapping to the HR…
Flares from the Tidal Disruption of Stars by Massive Black Holes
Andrew Ulmer
Tidal disruption flares are differentiated into two classes -- those which are sub-Eddington and those which radiate near the Eddington limit. Flares from black holes above ~2 x 10…
Optical Appearance of the Debris of a Star Disrupted by a Massive Black Hole
Abraham Loeb, Andrew Ulmer
We show that the disruption of a star by a 10^6 solar mass black hole in a galactic nucleus could under favorable circumstances produce an optically-thick envelope that radiates wi…