David O'Neill

Background

Research

I am interested in the dynamics of compact objects and their interactions with astrophysical environments. This includes:



(i) Supermassive Black Holes

(ii) Gas Embedded Binaries

(iii) Hyperbolic Scatterings in Gas

Recent Work

"Gaseous Dynamical Friction on Elliptical Keplerian Orbits" - David O'Neill, Daniel D'Orazio, Johan Samsing, Martin Pessah, ApJ 974 216 (2024) 

"Gravitational Wave Decoupling in Retrograde Circumbinary Disks" - David O'Neill (in prep.)

"Gaseous Dynamical Friction on Hyperbolic Encounters" - David O'Neill (in prep.)

"Gravitational Wave Memory Imprints on the CMB from Populations of Massive Black Hole Mergers" - Lorenz Zwick, David O'Neill, Kai Hendriks, Philip Kirkeberg, Miquel Miravet-Tenés (2024)

" Bridging the Micro-Hz Gravitational Wave Gap via Doppler with the Uranus Orbiter and Probe Mission: Massive Black Hole Binaries, Early Universe Signals and Ultr-Light Dark Matter" - Lorenz Zwick, Deniz Soyuer, Daniel J. D'Orazio, David O'Neill, Andrea Derdzinski, Prasenjit Saha, Diego Blas, Alexander C. Jenkins, Luke Zoltan Kelley




Email: david.oneill@nbi.ku.dk Github: davidoneill00