activity
20242026
most citedLittle Red Dots as self-gravitating discs accreting on supermassive stars: Spectral appearance and formation pathway of the progenitors to direct collapse black holes

2 citations · 2 across the 4 of their papers we have counts for

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5 papers · 1 filter

astro-ph.HE2026

Supermassive black hole binaries in the multi-messenger context of ground and spaceborne VLBI

B. Hudson, L. I. Gurvits, D. J. D'Orazio +3

Evidence of a gravitational wave background suggests the existence of a population of sub-parsec supermassive black hole binaries (SMBHBs), with characteristic angular separations…

astro-ph.HE2026

Dynamics and detectability of long-lived non-accretion phases for massive black hole binaries in cold, thermally regulating disks

Christopher Tiede, David O'Neill, Daniel J. D'Orazio

We investigate whether the non-accreting phases found in thin, locally isothermal circumbinary disks survive when the disk thermodynamics are evolved self-consistently. We present…

astro-ph.HE2025

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…

astro-ph.HE2025

Dissecting environmental effects with eccentric gravitational wave sources

Lorenz Zwick, Kai Hendriks, David O'Neill +6

We model the effect of resonances between time-varying perturbative forces and the epi-cyclical motion of eccentric binaries in the gravitational wave (GW) driven regime. These ind…

astro-ph.HE2025

Environmental effects in stellar mass gravitational wave sources I: Expected fraction of signals with significant dephasing in the dynamical and AGN channels

Lorenz Zwick, János Takátsy, Pankaj Saini +5

We present the first overview of the expected quantity of signals which will showcase significant gravitational wave phase shifts caused by astrophysical environments, considering…