Results 21 to 30 of about 201,594 (302)

Nitrogen production in population III stars

open access: yesProceedings of the International Astronomical Union, 2022
The first stars in the Universe have inherited their composition from primordial nucleosynthesis, so they have no metal. These stars, which are also named population III (pop III) stars, began the process of reionization in the Universe and contributed ...
S. Tsiatsiou   +3 more
semanticscholar   +2 more sources

WHERE ARE THE LOW-MASS POPULATION III STARS? [PDF]

open access: yesThe Astrophysical Journal, 2016
We study the number and the distribution of low-mass Population III (Pop III) stars in the Milky Way. In our numerical model, hierarchical formation of dark matter minihalos and Milky-Way-sized halos are followed by a high-resolution cosmological ...
T. Ishiyama   +5 more
semanticscholar   +4 more sources

Gamma-Ray Bursts and Population III Stars [PDF]

open access: yesSpace Science Reviews, 2016
Gamma-ray bursts (GRBs) are ideal probes of the epoch of the first stars and galaxies. We review the recent theoretical understanding of the formation and evolution of the first (so-called Population III) stars, in light of their viability of providing ...
K. Toma, Sung-Chul Yoon, V. Bromm
semanticscholar   +4 more sources

An extremely metal-poor star complex in the reionization era: Approaching Population III stars with JWST [PDF]

open access: yesAstronomy & 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

Population III stars: hidden or disappeared ? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2007
to appear in ...
TORNATORE, L, FERRARA, A, SCHNEIDER, R
openaire   +4 more sources

The first fireworks: A roadmap to Population III stars during the Epoch of Reionization through Pair-Instability Supernovae [PDF]

open access: yesMonthly 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

The challenges of identifying Population III stars in the early Universe [PDF]

open access: yesMonthly 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

The Birth Mass Function of Population III Stars [PDF]

open access: yesAstrophysical 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

Extremely Metal-Poor Asymptotic Giant Branch Stars

open access: yesUniverse, 2022
Little is known about the first stars, but hints on this stellar population can be derived from the peculiar chemical composition of the most metal-poor objects in the Milky Way and in resolved stellar populations of nearby galaxies.
Mario Cirillo   +2 more
doaj   +1 more source

FOREVER22: The first bright galaxies with population III stars at redshifts z ≃ 10–20 and comparisons with JWST data [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2022
We study the formation of the first galaxies in overdense regions modelled by the FOREVER22 simulation project. Our simulations successfully reproduce the star formation rates and the MUV − Mstar relations of candidate galaxies at z ∼ 10 − 14 observed ...
H. Yajima   +7 more
semanticscholar   +1 more source

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