Results 11 to 20 of about 1,234,720 (380)
Solar and stellar photospheric abundances
Living Reviews in Solar Physics, 2016 The determination of photospheric abundances in late-type stars from spectroscopic observations is a well-established field, built on solid theoretical foundations.
Carlos Allende Prieto
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H2O abundances and cloud properties in ten hot giant exoplanets [PDF]
Monthly notices of the Royal Astronomical Society, 2018 Transmission spectroscopy of exoplanets has the potential to provide precise measurements of atmospheric chemical abundances, in particular of hot Jupiters whose large sizes and high temperatures make them conducive to such observations. To date, several
Arazi Pinhas +3 more
semanticscholar +1 more source
Nucleosynthesis, Mixing Processes, and Gas Pollution from AGB Stars
Universe, 2022 We discuss the evolution of stars through the asymptotic giant branch, focusing on the physical mechanisms potentially able to alter the surface chemical composition and on how changes in the chemistry of the external regions affect the physical ...
Paolo Ventura +6 more
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Frontiers in Astronomy and Space Sciences, 2021 Theoretical prediction of surface stellar abundances of light elements–lithium, beryllium, and boron–represents one of the most interesting open problems in astrophysics.
E. Tognelli +14 more
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Accuracy and Precision of Industrial Stellar Abundances [PDF]
Annual Review of Astronomy and Astrophysics, 2018 There has been an incredibly large investment in obtaining high-resolution stellar spectra for determining chemical abundances of stars. This information is crucial to answer fundamental questions in astronomy by constraining the formation and evolution ...
P. Jofr'e, U. Heiter, C. Soubiran
semanticscholar +1 more source
MANGANESE ABUNDANCES IN THE ATMOSPHERE OF CLUMP GIANTS
Odessa Astronomical Publications, 2013 The manganese abundances was determined in the atmospheres of clump giants stars whose election was made earlier based on their chemical composition and evolutionary tracks. The spectra of the studied stars were obtained using the facilities of the 1.93m
T. I. Gorbaneva
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Structure formation cosmic rays: Identifying observational constraints [PDF]
Serbian Astronomical Journal, 2005 Shocks that arise from baryonic in-fall and merger events during the structure formation are believed to be a source of cosmic rays. These "structure formation cosmic rays" (SFCRs) would essentially be primordial in composition, namely, mostly made of ...
Prodanović T., Fields B.D.
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Physics, 2022 I review the pioneering work of Jean Cleymans in establishing the statistical description of multihadron production in high energy strong interaction physics.
openaire +2 more sources
Connecting the primordial and Galactic deuterium abundances [PDF]
, 2007 The deuterium abundances inferred from observations of the interstellar medium within 1-2 kpc of the Sun range over a factor of three and the corresponding oxygen abundances show an even larger dispersion.
Romano, Donatella +2 more
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GCR Neon Isotopic Abundances: Comparison with Wolf-Rayet Star Models and Meteoritic Abundances [PDF]
, 2001 Measurements of the neon isotopic abundances from the ACE-CRIS experiment are presented. These abundances have been obtained in seven energy intervals over the energy range of ~80≤E≤280 MeV/nucleon.
Binns, W. R. +10 more
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