activity
20072026
most citedVacuum Instability in Chern-Simons Gravity

92 citations · 498 across the 30 of their papers we have counts for

collaborators

31 papers

astro-ph.HE2026

Flux-Averaged Force Multipliers

Sergei Dyda, Randall C. Dannen, Shane W. Davis +2

We apply novel developments in photoionization modeling and multi-frequency radiation hydrodynamics to the study of line driven AGN disc winds. We use a flux-averaged force multipl…

astro-ph.HE2025★ 1 cited

Time-Dependent AGN Disc Winds II -- Effects of Photoionization

Sergei Dyda, Randall C. Dannen, Timothy R. Kallman +2

We use a combination of radiation hydrodynamics (rad-HD) and photoionization modeling to study line-driven disc winds for a range of black hole masses. We refined previous models b…

astro-ph.HE2025★ 1 cited

Blackbodies Matter

Sergei Dyda

We study line driven stellar winds using multifrequency, time-dependent radiation hydrodynamics. We compute the radiation force due to lines, the so called force multiplier, using…

astro-ph.GA2024

Position dependent radiation fields near accretion disks

Kara Smith, Daniel Proga, Randall Dannen +2

In disk wind models for active galactic nuclei (AGN) outflows, high-energy radiation poses a significant problem wherein the gas can become overionized, effectively disabling what…

astro-ph.SR2023

Line Driven Instabilities due to Continuum Radiation Transport in Stellar Winds

Sergei Dyda, Shane W. Davis

We study line driven stellar winds using time-dependent radiation hydrodynamics where the continuum radiation couples to the gas via either a scattering or absorption opacity and t…

astro-ph.HE2023

Time-Dependent AGN Disc Winds I -- X-ray Irradiation

Sergei Dyda, Shane W. Davis, Daniel Proga

We study AGN line driven disc winds using time-dependent radiation hydrodynamics. The key criterion for determining wind launching is the coupling strength of the UV radiation fiel…