The most massive Population III stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT Recent data from the JWST suggest that there are realistic prospects for detecting the earliest generation of stars at redshift ∼20. These metal-poor, gaseous Population III (Pop III) stars are likely in the mass range $10\!-\!10^3\, {\rm M}_{\odot }$ .
Chantavat, Teeraparb +2 more
openaire +4 more sources
The first fireworks: A roadmap to Population III stars during the Epoch of Reionization through Pair-Instability Supernovae [PDF]
Monthly notices of the Royal Astronomical Society, 2023 With the launch of JWST and other scheduled missions aimed at probing the distant Universe, we are entering a new promising era for high-z astronomy.
A. Venditti +4 more
semanticscholar +1 more source
An extremely metal-poor star complex in the reionization era: Approaching Population III stars with JWST [PDF]
Astronomy & Astrophysics, 2023 We present JWST/NIRSpec integral field spectroscopy (IFS) of a lensed Population III candidate stellar complex (dubbed Lensed And Pristine 1, LAP1), with a lensing-corrected stellar mass ~-11.2 (m_UV>35.6), confirmed at redshift 6.639 +/- 0.004.
E. Vanzella +33 more
semanticscholar +1 more source
Binary black hole mergers from population III stars: uncertainties from star formation and binary star properties [PDF]
Monthly notices of the Royal Astronomical Society, 2023 Population III (Pop. III) binary stars likely produced the first stellar-born binary black hole (BBH) mergers in the Universe. Here, we quantify the main sources of uncertainty for the merger rate density evolution and mass spectrum of Pop. III BBHs by
F. Santoliquido +7 more
semanticscholar +1 more source
The detection and characterization of highly magnified stars with JWST: Prospects of finding Population III [PDF]
Monthly notices of the Royal Astronomical Society, 2023 Gravitational lensing may render individual high-mass stars detectable out to cosmological distances, and several extremely magnified stars have in recent years been detected out to redshifts z ≈ 6. Here, we present Muspelheim, a model for the evolving
E. Zackrisson +12 more
semanticscholar +1 more source
Critical accretion rates for rapidly growing massive Population III stars [PDF]
Astronomy & Astrophysics, 2023 Efforts to understand the origin and growth of massive black holes observed in the early Universe have spurred a strong interest in the evolution and fate of rapidly-accreting primordial (metal-free) stars.
D. Nandal +5 more
semanticscholar +1 more source
The Evolution of Population III and Extremely Metal-poor Binary Stars [PDF]
Astrophysical Journal, 2023 Numerical simulations have now shown that Population III (Pop III) stars can form in binaries and small clusters and that these stars can be in close proximity to each other.
Sung-Han Tsai +4 more
semanticscholar +1 more source
HERA bound on x-ray luminosity when accounting for population III stars [PDF]
Physical Review D, 2023 Recent upper bounds from the Hydrogen Epoch of Reionization Array (HERA) on the cosmological 21-cm power spectrum at redshifts $z \approx 8, 10$, have been used to constrain $L_{\rm ...
Hovav Lazare, Debanjan Sarkar, E. Kovetz
semanticscholar +1 more source
The Birth Mass Function of Population III Stars [PDF]
Astrophysical Journal, 2021 Population III stars ended the cosmic dark ages and began early cosmological reionization and chemical enrichment. However, in spite of their importance to the evolution of the early universe, their properties remain uncertain because of the limitations ...
M. Latif, D. Whalen, S. Khochfar
semanticscholar +1 more source
The challenges of identifying Population III stars in the early Universe [PDF]
Monthly notices of the Royal Astronomical Society, 2022 The recent launch of JWST has enabled the exciting prospect of detecting the first generation of metal-free, Population III (Pop. III) stars. Determining characteristics that robustly signify Pop.
H. Katz +4 more
semanticscholar +1 more source