Results 21 to 30 of about 197,228 (295)

The γ Dor stars as revealed by Kepler: A key to reveal deep-layer rotation in A and F stars

open access: yesEPJ Web of Conferences, 2017
The γ Dor pulsating stars present high-order gravity modes, which make them important targets in the intermediate-and low-mass main-sequence region of the Hertzsprung-Russell diagram. Whilst we have only access to rotation in the envelope of the Sun, the
Salmon S. J. A. J.   +4 more
doaj   +1 more source

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   +1 more source

Three-dimensional hydrodynamics simulations of shell burning in Si/O-rich layer of pre-collapse massive stars [PDF]

open access: yesEPJ Web of Conferences, 2022
We perform three-dimensional (3D)hydrodynamics simulations of shell burning in the silicon-and oxygen-rich layers in pre-collapse massive stars.Weadoptanon-rotating27 M⊙ starhaving anextended O/Si/Ne layer and afast-rotating 38 M⊙ star having a Si/Olayer,
Yoshida Takashi   +7 more
doaj   +1 more source

On compressive radial tidal forces

open access: yes, 2007
Radial tidal forces can be compressive instead of disruptive, a possibility that is frequently overlooked in high level physics courses. For example, radial tidal compression can emerge in extended stellar systems containing a smaller stellar cluster ...
Binney J.   +6 more
core   +1 more source

Is there a mass discrepancy in the Cepheid binary OGLE-LMC-CEP0227? [PDF]

open access: yes, 2011
Context. The Cepheid mass discrepancy, the difference between masses predicted from stellar evolution and stellar pulsation calculations, is a challenge for the understanding of stellar astrophysics. Recent models of the eclipsing binary Cepheid OGLE-LMC-
Bono   +36 more
core   +1 more source

Stellar Evolution Models of Young Stars: Progress and Limitations

open access: yes, 2015
Stellar evolution models are a cornerstone of young star astrophysics, which necessitates that they yield accurate and reliable predictions of stellar properties.
Feiden, Gregory A.
core   +1 more source

Uncertainties in AGB Evolution and Nucleosynthesis

open access: yes, 2016
We summarise the evolution and nucleosynthesis in AGB and Super-AGB stars. We then examine the major sources of uncertainty, especially mass-loss.Comment: 8 pages, no figures.
Karakas, Amanda, Lattanzio, John
core   +1 more source

Code dependencies of pre-supernova evolution and nucleosynthesis in massive stars: Evolution to the end of core helium burning [PDF]

open access: yes, 2014
Massive stars are key sources of radiative, kinetic and chemical feedback in the Universe. Grids of massive star models computed by different groups each using their own codes, input physics choices and numerical approximations, however, lead to ...
Fryer, C.   +7 more
core   +2 more sources

Phenomenological Analogies in Black Hole Systems of all Masses

open access: yes, 2004
I review the progress made on the physics of relativistic jets from black hole systems in the context of the analogy between AGN and microquasars that was proposed one decade ago.
Mirabel, I. F.
core   +2 more sources

Observationally-Motivated Analysis of Simulated Galaxies [PDF]

open access: yes, 2014
The spatial and temporal relationships between stellar age, kinematics, and chemistry are a fundamental tool for uncovering the physics driving galaxy formation and evolution.
Gibson, B. K.   +2 more
core   +3 more sources

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