Characterization of Population III Stars with Stellar Atmosphere and Evolutionary Modeling and Predictions of their Observability with the JWST [PDF]
Astronomical Journal, 2022 Population III stars were the first stars to form after the Big Bang and are believed to have made the earliest contribution to the metal content of the universe beyond the products of the Big Bang nucleosynthesis.
Mikaela M. Larkin +2 more
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FOREVER22: The first bright galaxies with population III stars at redshifts z ≃ 10–20 and comparisons with JWST data [PDF]
Monthly 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
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Unveiling the Contribution of Population III Stars in Primeval Galaxies at Redshift ≥6 [PDF]
Astrophysical Journal Letters, 2022 Detection of the first stars has remained elusive so far but their presence may soon be unveiled by upcoming JWST observations. Previous studies have not investigated the entire possible range of halo masses and redshifts that may help in their detection.
Shafqat Riaz, T. Hartwig, M. Latif
semanticscholar +1 more source
Constraining Warm Dark Matter and Population III Stars with the Global 21 cm Signal [PDF]
Astrophysical Journal, 2022 Upcoming ground- and space-based experiments may have sufficient accuracy to place significant constraints upon high-redshift star formation, Reionization, and dark matter (DM) using the global 21 cm signal of the intergalactic medium.
J. Hibbard +5 more
semanticscholar +1 more source
Footprints of Population III Stars in the Gravitational-wave Background [PDF]
Astrophysical Journal, 2021 We investigate detection prospects of the gravitational-wave background (GWB) that originates from the merging of compact objects formed by the collapse of Population III stars. Younger Population I/II stars lead to a GWB in the LIGO/Virgo frequency band
K. Martinovic +3 more
semanticscholar +1 more source
A Strong He ii λ1640 Emitter with an Extremely Blue UV Spectral Slope at z = 8.16: Presence of Population III Stars? [PDF]
Astrophysical Journal Letters, 2022 Cosmic hydrogen reionization and cosmic production of the first metals are major phase transitions of the Universe occurring during the first billion years after the Big Bang; however, these are still underexplored observationally. Using the JWST/NIRSpec
Xin Wang +14 more
semanticscholar +1 more source
Population III Star Formation in an X-ray background: I. Critical Halo Mass of Formation and Total Mass in Stars [PDF]
, 2021 The first luminous objects forming in the universe produce radiation backgrounds in the FUV and X-ray bands that affect the formation of Population III stars.
Jongwon Park, M. Ricotti, K. Sugimura
semanticscholar +1 more source
Stellar winds and metal enrichment from fast-rotating Population III stars [PDF]
Monthly notices of the Royal Astronomical Society, 2021 Stellar winds from fast-rotating Population III (Pop III) stars have long been suspected to make important contributions to early metal enrichment, as features in the nucleosynthesis of such ‘spinstars’ are consistent with the chemical abundance ...
Boyuan Liu +3 more
semanticscholar +1 more source
Can Population III stars be major origins of both merging binary black holes and extremely metal poor stars? [PDF]
, 2022 Population (Pop) III stars, first stars, or metal-free stars are made of primordial gas. We have examined if they can be dominant origins of merging binary black holes (BHs) and extremely metal-poor stars. The abundance pattern of EMP stars is helpful to
A. Tanikawa +4 more
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On Population III Star Formation [PDF]
Symposium - International Astronomical Union, 1983 If primordial fluctuations were isothermal their amplitude at recombination would be non-linear on scales Mo ≃ 106÷9 M⊙. Since the Jeans mass after recombination is MJo ≃ 8 × 105 Ω−1/2 M⊙ the clouds of mass Mo would be able to form the first generation of compact objects, the so-called Population III.
A. Kashlinsky, M. J. Rees
openaire +1 more source