68 citations · 185 across the 31 of their papers we have counts for
7 papers · 1 filter
The Origin of Supermassive Black Holes from Pop III.1 Seeds
Jonathan C. Tan, Jasbir Singh, Vieri Cammelli +4
The origin of supermassive black holes (SMBHs) is a key open question for contemporary astrophysics and cosmology. Here we review the features of a cosmological model of SMBH forma…
Grids of stellar models with rotation VIII: Models from 1.7 to 500 at metallicity
Yves Sibony, Kendall G. Shepherd, Norhasliza Yusof +12
Grids of stellar evolution models with rotation using the Geneva stellar evolution code (Genec) have been published for a wide range of metallicities. We introduce the last remaini…
The Evolution of Accreting Population III Stars at 10-10 M/yr
Devesh Nandal, Lorenz Zwick, Daniel J. Whalen +3
The first stars formed over five orders of magnitude in mass by accretion in primordial dark matter halos. We study the evolution of massive, very massive and supermassive primordi…
Linear adiabatic analysis for general relativistic instability in primordial accreting supermassive stars
Hideyuki Saio, Devesh Nandal, Sylvia Ekstroem +1
Accreting supermassive stars of will eventually collapse directly to a black hole via the general relativistic (GR) instability. Such direct collapses of…
Fast-rotating massive Population~III stars as possible sources of extreme N-enrichment in high-redshift galaxies
Devesh Nandal, Yves Sibony, Sophie Tsiatsiou
We present an analysis of the chemical compositions in high-redshift galaxies, with a focus on the nitrogen-enhanced galaxies GN-z11 and CEERS-1019. We use stellar models of massiv…
Rapidly rotating Population III stellar models as a source of primary nitrogen
Sophie Tsiatsiou, Yves Sibony, Devesh Nandal +12
The first stars might have been fast rotators. This would have important consequences for their radiative, mechanical and chemical feedback. We discuss the impact of fast initial r…
Explaining the high nitrogen abundances observed in high-z galaxies via population III stars of a few thousand solar masses
Devesh Nandal, John A. Regan, Tyrone E. Woods +3
The chemical enrichment of the early Universe is a crucial element in the formation and evolution of galaxies, and Population III (PopIII) stars must play a vital role in this proc…