activity
20162026
most citedPost-Newtonian dynamical modeling of supermassive black holes in galactic-scale simulations

79 citations · 820 across the 41 of their papers we have counts for

collaborators

42 papers

astro-ph.IM2026

Tracing small-scale structure formation through cosmic time with strong gravitational lensing: A case for a next-generation sub-millimetre/millimetre interferometer

Hannah R. Stacey, John P. McKean, Mamta Pandey-Pommier +12

The nature of dark matter and the growth of supermassive black holes (SMBHs) remain major open questions in modern astrophysics. Both leave a key signature in an overlapping, large…

astro-ph.GA2026★ 1 cited

Supermassive stars with embedded stellar black hole cores: dense assembling star clusters as faint multiple Little Red Dot systems

Antti Rantala

Numerical simulations have established that star clusters with densities comparable to the high redshift (-) James Webb Space Telescope (JWST) proto globular clusters may…

astro-ph.GA2026★ 1 cited

FROST-CLUSTERS -- III. Metallicity-dependent intermediate mass black hole formation by runaway collisions in dense star clusters

Antti Rantala, Thorsten Naab, Natalia Lahén +4

We explore the formation of intermediate mass black holes (IMBHs), potential seeds for supermassive black holes (SMBHs), via runaway stellar collisions for a wide range of star clu…

astro-ph.GA2025

Rapid sinking and efficient mergers of supermassive black holes in compact high-redshift galaxies

Atte Keitaanranta, Peter H. Johansson, Alexander Rawlings +5

We present a cosmological zoom-in simulation targeting the high redshift compact progenitor phase of massive galaxies, with the most massive galaxy reaching a stellar mass of $M_{\…

astro-ph.GA2025★ 1 cited

Elusive Plunges and Heavy Intermediate-mass-ratio Inspirals from Single and Binary Supermassive Black Holes

Lazaros Souvaitzis, Antti Rantala, Thorsten Naab

The most massive galaxies in the Universe also host the largest supermassive black holes (SMBHs), with masses of and above. During their hierarchical a…

astro-ph.GA2025

Massive Interacting Binaries Enhance Feedback in Star-Forming Regions

Claude Cournoyer-Cloutier, Eric P. Andersson, Sabrina M. Appel +9

We present a new framework to incorporate feedback from massive interacting binaries in simulations of star cluster formation. Our new feedback model adds binary stellar evolution…