activity
20242026
most citedRapid formation of a very massive star >50000 and subsequently an IMBH from runaway collisions. Direct N-body and Monte Carlo simulations of dense star clusters

16 citations · 48 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.GA2026

Intermediate-mass black hole seeding in galactic nuclei from star cluster migration

Stefano Torniamenti, Nils Hoyer, Nadine Neumayer +2

Nuclear star clusters are one of the most favorable sites to host hierarchical black hole (BH) mergers, potentially bridging the gap from stellar-mass to massive BHs. However, thei…

astro-ph.GA2026

Direct N-body simulations of rotating and extremely massive Population III star clusters

Kai Wu, Ataru Tanikawa, Francesco Flammini Dotti +6

Aims. We present eight direct N-body simulations with NBODY6++GPU of extremely massive, initially rotating Population III star clusters with 1.01 x 10^5 stars. Methods. Our models…

astro-ph.GA2025

The Nuclear Star Cluster of M 74: a fossil record of the very early stages of a star-forming galaxy

Francesca Pinna, Nils Hoyer, Jairo Méndez Abreu +13

Nuclear star clusters (NSC) are dense and compact stellar systems, of sizes of few parsecs, located at galactic centers. Their properties and formation mechanisms seem to be tightl…

astro-ph.GA2025★ 12 cited

Efficient black hole seed formation in low metallicity and dense stellar clusters with implications for JWST sources

M. C. Vergara, A. Askar, F. Flammini Dotti +7

Recent observations with the James Webb Space Telescope (JWST) reveal young massive clusters (YMCs) as key building blocks of early galaxies. They are not only important constituen…

astro-ph.GA2025★ 16 cited

Rapid formation of a very massive star >50000 and subsequently an IMBH from runaway collisions. Direct N-body and Monte Carlo simulations of dense star clusters

Marcelo C. Vergara, Abbas Askar, Albrecht W. H. Kamlah +15

Context. We present simulations of a massive young star cluster using \textsc{Nbody6++GPU} and \textsc{MOCCA}. The cluster is initially more compact than previously published model…

astro-ph.GA2025★ 1 cited

Massive Star Clusters in the Semi-Analytical Galaxy Formation Model L-Galaxies 2020

Nils Hoyer, Silvia Bonoli, Nate Bastian +7

It is established that there exists a direct link between the formation history of star cluster populations and their host galaxies. However, our lack of understanding of the assem…

astro-ph.GA2024★ 4 cited

Relatively young thick disks in star-forming late-type galaxies

Natascha Sattler, Francesca Pinna, Sebastien Comerón +4

We trace the evolution of eight edge-on star-forming disk galaxies by analyzing stellar population properties of their thin and thick disks. These galaxies have relatively low stel…

astro-ph.GA2024★ 15 cited

Efficiency of black hole formation via collisions in stellar systems: An analysis of data from simulations and observations

M. C. Vergara, D. R. G. Schleicher, A. Escala +7

This paper explores the theoretical relation between star clusters and black holes within, focusing on the potential role of nuclear star clusters (NSCs), globular clusters (GCs),…