Results 11 to 20 of about 1,140,165 (333)

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

The Importance of Rotation in Stellar Evolution [PDF]

open access: bronzeMonthly Notices of the Royal Astronomical Society, 1950
P. A. Sweet
openalex   +3 more sources

Rotational Instabilities and Stellar Evolution [PDF]

open access: bronzeSymposium - International Astronomical Union, 1974
This review deals with the local instabilities arising when the effects of rotation are taken into account in the evolution of a non-magnetic star.The Rayleigh and shear instabilities will be examined under the conditions prevailing in radiative zones where the effect of density stratification, thermal diffusion, viscosity and varying chemical ...
Jean-Paul Zahn
openalex   +3 more sources

Maxwellian Distributions for Stellar Rotations [PDF]

open access: bronzeInternational Astronomical Union Colloquium, 1970
AbstractFor stars in the main-sequence band, the distributions of ‘line-widths’ Ksin; are rediscussed, with the inclusion of recent measurements by Walker and Hodge for B stars, and by Preston for Ap stars. The Ap stars are counted with normal stars of the same color-class.
Armin J. Deutsch
openalex   +3 more sources

PARSEC V2.0: Stellar tracks and isochrones of low and intermediate mass stars with rotation [PDF]

open access: yesAstronomy & Astrophysics, 2022
We present a new comprehensive collection of stellar evolutionary tracks and isochrones for rotating low- and intermediate-mass stars assembled with the updated version of PARSEC V2.0. This version includes our recent calibration of the extra mixing from
C. Nguyen   +8 more
semanticscholar   +1 more source

Dependence of Stellar Differential Rotation on Effective Temperature and Rotation: An Analysis from Starspot Transit Mapping

open access: yesThe Astrophysical Journal, 2023
Stellar rotation is crucial for studying stellar evolution, since it provides information about age, angular momentum transfer, and magnetic fields of stars.
Alexandre Araújo, Adriana Valio
doaj   +1 more source

KELT-9 b’s Asymmetric TESS Transit Caused by Rapid Stellar Rotation and Spin–Orbit Misalignment [PDF]

open access: yesAstronomical Journal, 2020
KELT-9 b is an ultra-hot Jupiter transiting a rapidly rotating, oblate early-A-type star in a polar orbit. We model the effect of rapid stellar rotation on KELT-9 b’s transit light curve using photometry from the Transiting Exoplanet Survey Satellite to ...
John P. Ahlers   +21 more
semanticscholar   +1 more source

Exploring the Evolution of Stellar Rotation Using Galactic Kinematics [PDF]

open access: yesAstronomical Journal, 2020
The rotational evolution of cool dwarfs is poorly constrained after ∼1–2 Gyr due to a lack of precise ages and rotation periods for old main-sequence stars.
R. Angus   +11 more
semanticscholar   +1 more source

BCD Spectrophotometry and Rotation of Active B-Type Stars: Theory and Observations

open access: yesGalaxies, 2023
This review has two parts. The first one is devoted to the Barbier–Chalonge–Divan (BCD) spectrophotometric system, also known as the Paris spectral classification system.
Juan Zorec
doaj   +1 more source

Impact of rotation on stellar models [PDF]

open access: yesAstronomische Nachrichten, 2016
AbstractAfter a brief recall of the main impacts of stellar rotation on the structure and the evolution of stars, four topics are addressed: 1) the links between magnetic fields and rotation; 2) the impact of rotation on the age determination of clusters; 3) the exchanges of angular momentum between the orbit of a planet and the star due to tides; 4 ...
Meynet, Georges   +7 more
openaire   +6 more sources

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