82 citations · 430 across the 21 of their papers we have counts for
6 papers · 1 filter
Black Hole Accretion Discs and Luminous Transients in Failed Supernovae from Non-Rotating Supergiants
Eliot Quataert, Daniel Lecoanet, Eric R. Coughlin
We show that for supergiants, net angular momentum is not a necessary condition for forming accretion discs during core-collapse. Even absent net rotation, convective motions in th…
Gravitational interactions of stars with supermassive black hole binaries - II. Hypervelocity stars
Siva Darbha, Eric R. Coughlin, Daniel Kasen +1
Supermassive black holes (SMBHs) in galactic nuclei can eject hypervelocity stars (HVSs). Using restricted three-body integrations, we study the properties of stars ejected by circ…
Weak shock propagation with accretion. I. Self-similar solutions and application to failed supernovae
Eric R. Coughlin, Eliot Quataert, Stephen Ro
We present solutions for the self-similar propagation of a shock wave in a hydrostatic, adiabatic medium with a point mass gravitational field. In contrast to the well-known, Sedov…
Super-Eddington Accretion in Tidal Disruption Events: the Impact of Realistic Fallback Rates on Accretion Rates
Samantha Wu, Eric R. Coughlin, Chris Nixon
After the tidal disruption of a star by a massive black hole, disrupted stellar debris can fall back to the hole at a rate significantly exceeding its Eddington limit. To understan…
Gravitational interactions of stars with supermassive black hole binaries. I. Tidal disruption events
Siva Darbha, Eric R. Coughlin, Daniel Kasen +1
Stars approaching supermassive black holes (SMBHs) in the centers of galaxies can be torn apart by strong tidal forces. We study the physics of tidal disruption by a binary SMBH as…
Stellar binaries incident on supermassive black hole binaries: implications for double tidal disruption events, calcium-rich transients, and hypervelocity stars
Eric R. Coughlin, Siva Darbha, Daniel Kasen +1
We analyze the outcome of the interaction between a stellar binary and a supermassive black hole binary (SMBHB) by performing a large number of gravitational scattering experiments…