Results 21 to 30 of about 11,182,421 (303)
The Transition from Population III to Population II Stars [PDF]
The Astrophysical Journal, 2004 4 pages, 2 figures.
Fang, Taotao, Cen, Renyue
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Theoretical results of one class of multiderivative methods through order stars [PDF]
, 2011 Order stars are applied to Brown (K,L) methods. They are displayed pictorially for a selection of methods and are used to provide succinct proofs of existing results.
Meneguette, Messias +6 more
core +3 more sources
Modelling and observations of molecules in discs around young stars [PDF]
, 2013 This thesis contains a study of molecules within circumstellar discs around young stars. Firstly, the chemistry of a disc around a young, Class 0 protostar is modelled.
Ilee, John David
core +5 more sources
Populations of rotating stars [PDF]
Astronomy & Astrophysics, 2013 Accepted for publication in A&A, language ...
Granada +7 more
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Deficiency of Metals in Population II Stars [PDF]
Nature, 1963 IN a recent communication under this title Bashkin1 has attempted to explain the deficiency of heavy elements in Population II halo stars by arguing that a separation between neutral atoms and ions is possible through electromagnetic means and that, since the ionization potentials of the metals are in general low, they will be confined to the disk ...
GEORGE WALLERSTEIN, E. MARGARET BURBIDGE
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Lithium In Population II Stars [PDF]
Highlights of Astronomy, 1995 AbstractSince the work of Spite & Spite (1982), halo main sequence turn-off stars have usually been considered a site where Li synthesized in the Big-Bang is wholly preserved and uncontaminated by other Li sources. However, the interpretation of halo dwarf Li abundances has become more complex as new samples of halo star Li I observations have ...
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Footprints of population III stars in the gravitational-wave background
, 2021 International audienceWe 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.
Sakellariadou, Mairi; id_orcid +4 more
core +1 more source
Spectroscopic survey of Kepler stars – II. FIES/NOT observations of A- and F-type stars [PDF]
, 2017 We have analysed high-resolution spectra of 28 A and 22 F stars in the Kepler field, observed using the Fibre-Fed Échelle Spectrograph at the Nordic Optical Telescope. We provide spectral types, atmospheric parameters and chemical abundances for 50 stars.
S. J. Murphy +22 more
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Unique Chemical Composition of the Very Metal-poor Star LAMOST J1645+4357
The Astrophysical Journal, 2023 We report on the chemical composition of the very metal-poor (VMP; [Fe/H] = −2.9) star LAMOST J1645+4357, which was identified as a red giant having peculiar abundance ratios by Li et al. The standard abundance analysis is carried out for this object and
Wako Aoki +5 more
doaj +1 more source
Cosmic reionization by stellar sources: Population II stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 We study the reionisation of the Universe by stellar sources using a numerical approach that combines fast 3D radiative transfer calculations with high resolution hydrodynamical simulations. Ionising fluxes for the sources are derived from intrinsic star formation rates computed in the underlying hydrodynamical simulations.
Sokasian, Aaron +3 more
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