Results 31 to 40 of about 300,825 (275)
Population III by Popular Demand - Progress and Previews [PDF]
I discuss the ongoing search for stars of the Milky Way which have been referred to as members of Population III. Following a discussion of possible definitions for these stars, I consider the reasons why astronomers have undertaken this search, and list
Beers, Timothy C.
core +3 more sources
We explore the chemodynamical properties of a sample of very metal-poor (VMP) stars selected from the Hamburg/ESO survey, matched with Gaia EDR3, in the phase space identified by the three integrals of motion ( L _z , E , I _3 ). Disk and halo orbits are
Daniela Carollo +3 more
doaj +1 more source
High Energy neutrino signals from the Epoch of Reionization [PDF]
We perform a new estimate of the high energy neutrinos expected from GRBs associated with the first generation of stars in light of new models and constraints on the epoch of reionization and a more detailed evaluation of the neutrino emission yields. We
F. Iocco +4 more
core +3 more sources
The most massive Population III stars
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 +3 more sources
Dust Production Factories in the Early Universe: Formation of Carbon Grains in Red-supergiant Winds of Very Massive Population III Stars [PDF]
We investigate the formation of dust in a stellar wind during the red-supergiant (RSG) phase of a very massive Population III star with the zero-age main sequence mass of 500 M_sun.
Kozasa, Takashi +5 more
core +1 more source
The Evolution of Population III and Extremely Metal-poor Binary Stars
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
doaj +1 more source
Magnetohydrodynamics of Population III Star Formation [PDF]
The evolution of collapsing primordial clouds and the formation of Population III (Pop III) protostars are investigated with three‐dimensional ideal MHD simulations. We follow the collapse of parsec‐sized primordial clouds down to the formation of protostars on sub‐AU scales.
Masahiro N. Machida +5 more
openaire +1 more source
The masses of Population III stars [PDF]
La formation de proto-etoiles de Population III est etudiee en suivant l'hypothese que la permanence des fluctuations de masse 10-1000 M○. apres l'ere de recombinaison peut etre importante dans la fragmentation des nuages massifs de masse ∼M J pour former des etoiles de population III, ou M J est la masse de Jeans pendant l'ere de ...
J. C. N. de Araujo, R. Opher
openaire +1 more source
Modelling the chemical evolution of the Galaxy halo [PDF]
We study the chemical evolution and formation of the Galactic halo through the analysis of its stellar metallicity distribution function and some key elemental abundance patterns.
Brusadin, G., Matteucci, F., Romano, D.
core +2 more sources
Chemical constraints on the contribution of Population III stars to cosmic reionization
Recent studies have highlighted that galaxies at z = 6-8 fall short of producing enough ionizing photons to reionize the IGM, and suggest that Population III stars could resolve this tension, because their harder spectra can produce ~10x more ionizing ...
Hennawi, Joseph F. +3 more
core +2 more sources

