12 papers
The impact of recombination during tidal disruption events
Simona Pacuraru, Clément Bonnerot, Martin E. Pessah
During a tidal disruption event, the resulting debris stream cools down adiabatically due to the tidal stretching. As the temperature drops, the gas is expected to undergo chemical…
Global simulations of accretion flows onto perturbers embedded in magnetized disks -I. MRI and jet formation in ideal MHD
Raúl O. Chametla, F. J. Sánchez-Salcedo, Martin E. Pessah +1
We present the highest resolution global MHD simulations to date of gas flow around a low mass a perturber with mass ratio , embedded in an accretion disk ar…
The impact of magnetic fields during tidal disruption events
Simona Pacuraru, Clément Bonnerot, Martin E. Pessah
During a tidal disruption event (TDE) the stream debris inherits the magnetic field of the star. As the stream stretches, the magnetic field evolves and can eventually become dynam…
Insights from Analytical Theory of Eccentric Circumbinary Disks II. Forced Modes and Resonance for Precessing Binaries
Marcela Grcic, Daniel J. D'Orazio, Martin E. Pessah
An eccentric, unequal-mass binary induces forced eccentricity in a circumbinary disk through the non-axisymmetric component of its gravitational potential. Building on the theory o…
Spin-Orbit Misalignments of Eccentric Black Hole Mergers in AGN Disks
Gaia Fabj, Christopher Tiede, Connar Rowan +2
The disks of active galactic nuclei (AGNs) provide a natural environment where stellar-mass black holes (BHs) can dynamically pair, undergo repeated interactions, and eventually me…
On the Evolution of Disk-Embedded Binaries: Framing Local Models in Global Context
Philip Kirkeberg, Rixin Li, Martin E. Pessah
The disks of Active Galactic Nuclei (AGN) have in recent years been recognized as possible sites for gravitational wave sources, leading to a series of numerical studies on the evo…