Results 1 to 10 of about 214,641 (271)

Chemical element transport in stellar evolution models [PDF]

open access: yesRoyal Society Open Science, 2017
Stellar evolution computations provide the foundation of several methods applied to study the evolutionary properties of stars and stellar populations, both Galactic and extragalactic.
Maurizio Salaris, Santi Cassisi
doaj   +5 more sources

The Evolution of Stellar Populations [PDF]

open access: yesAstrophysics and Space Science, 2001
We summarize the discussion section on ``Evolution of Stellar Populations'' we led on May 27, 2000 in Granada, Spain, as part of the Euroconference on The Evolution of Galaxies. I- Observational Clues.
Diaz, Angeles, Hardy, Eduardo
core   +7 more sources

Rotation and stellar evolution [PDF]

open access: yesEPJ Web of Conferences, 2013
The effects of rotation on the evolution and properties of low-mass stars are first discussed from the pre-main sequence to the red giant phase. We then briefly indicate how some observational constraints available for these stars can help us progress in
Eggenberger P.
doaj   +3 more sources

Red supergiants and stellar evolution [PDF]

open access: yesEAS Publications Series, 2013
We review the significant role played by red supergiants (RSGs) in stellar populations, and some challenges and questions they raise for theoretical stellar evolution. We present how metallicity and rotation modify the way stars go to the red part of the
Ekström, Sylvia   +4 more
core   +3 more sources

Stellar chemical evolution [PDF]

open access: bronzeSymposium - International Astronomical Union, 1997
One of the major achievements of astrophysics has been the demonstration that most of the chemical elements have been synthesized in stars: nucleosynthesis calculations of homogeneous and inhomogeneous big bang cosmologies show that, in comparison with the most metal-poor stars currently known, essentially no elements heavier than B existed at the era ...
John E. Norris
openalex   +3 more sources

Stellar evolution and modelling stars [PDF]

open access: yes, 2017
In this chapter I give an overall description of the structure and evolution of stars of different masses, and review the main ingredients included in state-of-the-art calculations aiming at reproducing observational features.
A. Bressan   +84 more
core   +5 more sources

A new 12C+12C reaction rate: Impact on stellar evolution [PDF]

open access: yesEPJ Web of Conferences, 2023
Among the reactions driving stellar evolution during carbon burning, 12C + 12C fusion provides the key ingredients. This system reveals many resonances, but also regions with suppressed fusion cross-sections.
Monpribat E.   +13 more
doaj   +1 more source

A Search for Stellar Siblings of the ∼200 Myr TOI-251 b Planetary System

open access: yesThe Astrophysical Journal, 2023
Young planets (
Qinghui Sun   +6 more
doaj   +1 more source

Intriguing Revelations from Lithium, Beryllium, and Boron

open access: yesThe Astrophysical Journal, 2023
This is a report on some highlights of research on the rare light elements, lithium (Li), beryllium (Be), and boron (B), that were presented at my Henry Norris Russell Lecture in 2020 January.
Ann Merchant Boesgaard
doaj   +1 more source

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