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The Gamma-ray Afterglows of Tidal Disruption Events
Xian Chen, Germán Gómez-Vargas, James Guillochon
A star wandering too close to a supermassive black hole (SMBH) will be tidally disrupted. Previous studies of such "tidal disruption event" (TDE) mostly focus on the stellar debris…
Flows of X-ray gas reveal the disruption of a star by a massive black hole
Jon M. Miller, Jelle S. Kaastra, M. Coleman Miller +18
Tidal forces close to massive black holes can violently disrupt stars that make a close approach. These extreme events are discovered via bright X-ray and optical/UV flares in gala…
The X-ray through Optical Fluxes and Line Strengths of Tidal Disruption Events
Nathaniel Roth, Daniel Kasen, James Guillochon +1
Observations of luminous flares resulting from the possible tidal disruption of stars by supermassive black holes have raised a number of puzzles. Outstanding questions include the…
Discovery of an outflow from radio observations of the tidal disruption event ASASSN-14li
Kate D. Alexander, Edo Berger, James Guillochon +2
We report the discovery of transient radio emission from the nearby optically-discovered TDE ASASSN-14li (distance of 90 Mpc), making it the first typical TDE detected in the radio…
Thermonuclear detonations ensuing white dwarf mergers
Marius Dan, James Guillochon, Marcus Brüggen +2
The merger of two white dwarfs (WDs) has for many years not been considered as the favoured model for the progenitor system of type Ia supernovae (SNe Ia). But recent years have se…
Unbound Debris Streams and Remnants Resulting From the Tidal Disruptions of Stars by Supermassive Black Holes
James Guillochon, Michael McCourt, Xian Chen +2
The kinetic energy of a star in orbit about a supermassive black hole is a significant fraction of its rest mass energy when its periapse is comparable to its tidal radius. Upon it…