68 citations · 185 across the 31 of their papers we have counts for
33 papers
From Giant Envelopes to Rapidly Contracting Cores in Rotating Population III Stars from to
Devesh Nandal, John Chisholm, Daniel J. Whalen +4
Population III (Pop III) stars link the chemical enrichment of the early Universe to the formation of the first massive black holes, yet their evolution remains poorly understood a…
Stellar Yields of Rapidly Rotating Population III Stars for the High Redshift Universe
Devesh Nandal, Konstantinos Topalakis, Vasilisa Sergienko +6
JWST has revealed rapid nitrogen enrichment in high redshift galaxies, renewing the need for stellar yields that follow metal free stars beyond the main sequence and across their f…
Little Red Dots are Direct-Collapse Black Hole-Forming Galaxies
Daniel J. Whalen, Muhammad A. Latif, Konstantinos Topalakis +3
"Little Red Dots" (LRDs) at are one of the most challenging discoveries by JWST to date because their distinctive V-shaped spectra and compact morphologies (100 - 200 p…
The Ashes of Supermassive Stars: Globular Cluster-like Aluminum Enhancement in Little Red Dots
V. Kokorev, J. Chisholm, R. P. Naidu +16
The relative abundances of elements in galaxies serve as fossil records of the physical conditions and processes by which they were forged. While the Big Bang produced only the lig…
Can Little Red Dots Contribute To The Early Universe Cosmic Dust Budget?
Chris Ashall, Rohan P. Naidu, Alberto Torralba +11
The origin of dust in the early Universe remains uncertain. We explore whether Little Red Dots (LRDs) could provide a high-redshift dust-production channel. Motivated by an analogy…
Little Red Dots as Intermediate Mass, Super-Eddington Engines: Insights from Type IIn Supernovae and The 1837-1856 Great Eruption of Carinae
Rohan P. Naidu, Jorryt Matthee, Anna de Graaff +20
JWST's Little Red Dots (LRDs) display a unique constellation of features that do not occur simultaneously in any other class of galaxies or AGN. Here we observe that many of these…
SEEDZ: Rapid Galaxy Assembly as a Pathway to Supermassive Stars, Dense Stellar Environments and Massive Black Hole Seeds
Lewis R. Prole, John A. Regan, Daxal Mehta +14
We investigate the assembly history of early galaxies in the SEEDZ hydrodynamic simulations, to investigate the high inflow rates believed to be required for the formation of super…
The formation of supermassive black holes from Population III.1 seeds. IV. Self-regulated seeding from supermassive star ionizing feedback
Maya A. Petkova, Jonathan C. Tan, Jasbir Singh +5
Supermassive Population III.1 stars, i.e., formed from pristine, metal-free gas leading to conditions where dark matter annihilation heating is significant, have been proposed as t…
Pulsational mass loss from supermassive stars creates the compact shells of Little Red Dots
Devesh Nandal, Igor Chilingarian, Chris Nagele +3
Little Red Dots (LRDs) have emerged as one of the central puzzles of the JWST era. Their spectra increasingly require dense gas close to the source, yet the physical origin of that…
Habitable Zones Around Massive Stars: From the Main Sequence to Supergiants
Devesh Nandal, Abraham Loeb
Massive stars dominate the feedback of young stellar populations, yet their ultraviolet fields and winds are often presumed to preclude Earth like habitability. We test this by map…
Dark-Matter-Powered Population III Evolution: Lifetimes, Rotation, and Quasi-Homogeneity in massive Stars
Anais Pauchet, Devesh Nandal
Population III stars supplied the first light and metals in the Universe, setting the pace of re-ionisation and early chemical enrichment. In dense haloes their evolution can be st…
Growth of Metal-Enriched Supermassive Stars by Accretion and Collisions
Devesh Nandal, Sunmyon Chon
Supermassive stars (SMSs) are candidate progenitors of massive black hole seeds and may contribute to anomalous abundance patterns in high-redshift galaxies and globular clusters.…
The Evolution of Pop III.1 Protostars Powered by Dark Matter Annihilation. II. Dependence on WIMP Properties
Konstantinos Topalakis, Devesh Nandal, Jonathan C. Tan
The rapid appearance of supermassive black holes (SMBHs) at requires efficient pathways to form massive black hole seeds. We investigate whether annihilation of weakly…
Supermassive Stars Match the Spectral Signatures of JWST's Little Red Dots
Devesh Nandal, Abraham Loeb
The James Webb Space Telescope (JWST) has unveiled a population of enigmatic, compact sources at high redshift known as ``Little Red Dots'' (LRDs), whose physical nature remains a…
The evolution of protostars powered by dark matter annihilation. I. Fiducial model and first results
Devesh Nandal, Konstantinos Topalakis, Jonathan C. Tan +4
The existence of billion-solar-mass quasars at redshifts poses a formidable challenge to theories of black hole formation, requiring pathways for the rapid growth of…
The Future of Solar modelling: requirements for a new generation of solar models
Gael Buldgen, Gloria. Canocchi, Arthur. Le Saux +22
Helioseismology and solar modelling have enjoyed a golden era thanks to decades-long surveys from ground-based networks such as for example GONG, BiSON, IRIS and the SOHO and SDO s…
Rotating Supermassive Pop III Stars On The Main Sequence
Devesh Nandal, Gaël Buldgen, Daniel J. Whalen +3
The detection of billion-solar-mass supermassive black holes (SMBHs) within the first billion years of cosmic history challenges conventional theories of black hole formation and g…
1000-10,000 M Primordial Stars Created the Nitrogen Excess in GS 3073 at
Devesh Nandal, Daniel J. Whalen, Muhammad A. Latif +1
The advent of the James Webb Space Telescope has revealed a wealth of new galaxies just a few hundred Myr after the Big Bang. Some of these galaxies exhibit unusual N/O ratios that…
Constraints on the properties of macroscopic transport in the Sun from combined lithium and beryllium depletion
G. Buldgen, A. Noels, A. M. Amarsi +5
Context. The Sun is a privileged laboratory of stellar evolution, thanks to the quality and complementary nature of available constraints. Using these observations, we are able to…
Planet Formation at Cosmic Dawn: Planetesimals in HO-Rich Disks Around Low-Mass Stars
Eduard I. Vorobyov, Daniel J. Whalen, Muhammad A. Latif +5
Primordial, or Pop III, supernovae (SNe) were the first, great nucleosynthetic engines in the Universe, forging the heavy elements required for the later formation of planets, and…
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…