Results 1 to 10 of about 182,812 (236)
Dependence of Stellar Differential Rotation on Effective Temperature and Rotation: An Analysis from Starspot Transit Mapping [PDF]
The 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
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Rotation and stellar evolution [PDF]
EPJ 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.
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Stellar ages from stellar rotation [PDF]
Proceedings of the International Astronomical Union, 2008 AbstractOur ability to determine stellar ages from measurements of stellar rotation, hinges on how well we can measure the dependence of rotation on age for stars of different masses. Rotation periods for stars in open clusters are essential to determine the relations between stellar age, rotation, and mass.
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Disk-locking Regulates Stellar Rotation in Young Clusters: Insights from NGC 2264 [PDF]
The Astrophysical JournalMany young clusters possess extended main sequences, a phenomenon commonly ascribed to stellar rotation. However, the mechanism behind their very wide stellar rotation distributions remains unclear.
Yutian Bu +3 more
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Rotational Instabilities and Stellar Evolution [PDF]
Symposium - 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
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Maxwellian Distributions for Stellar Rotations [PDF]
International 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
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BCD Spectrophotometry and Rotation of Active B-Type Stars: Theory and Observations
Galaxies, 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
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Impact of rotation on stellar models [PDF]
Astronomische 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} G. +7 more
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Rotation and Stellar Evolution [PDF]
Symposium - International Astronomical Union, 1981 Does rotation influence stellar evolution? Does it cause observational effects other than line broadening? Can rotation be responsible for mixing of chemical elements throughout the star? Do evolved stars have rapidly rotating cores? This, for instance, is of interest if one wants to compute the details of supernova events.
H.-C. Thomas, R. Kippenhahn
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Intrinsic Ambipolarity and Rotation in Stellarators [PDF]
Physical Review Letters, 2008 It is shown that collisional plasma transport is intrinsically ambipolar only in quasiaxisymmetric or quasihelically symmetric magnetic configurations. Only in such fields can the plasma rotate freely, and then only in the direction of quasisymmetry. In a non-quasi-symmetric magnetic field, the average radial electric field is determined by parallel ...
Helander, P., Simakov, A.
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