Results 11 to 20 of about 5,252 (266)
Solar‐like oscillations in cluster stars [PDF]
Astronomische Nachrichten, 2010 AbstractWe present a brief overview of the history of attempts to obtain a clear detection of solar‐like oscillations in cluster stars, and discuss the results on the first clear detection, which was made by the Kepler Asteroseismic Science Consortium (KASC) Working Group 2 (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Dennis Stello +23 more
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Magnetic Oscillations in Radiative Stars [PDF]
International Astronomical Union Colloquium, 2000 AbstractWhat drives acoustic modes in magnetic, radiative stars, such as the rapidly oscillating Ap (roAp) stars? We propose that oscillations in the shape of the magnetic field can drive magnetosonic waves, which are observed as p modes. The force-free atmosphere minimizes magnetic energy.
E. J. Zita
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Instabilities of Scalar Fields around Oscillating Stars [PDF]
Physical Review Letters, 2021 18 pages, 18 figures, accepted for publication in Phys.
Ikeda, Taishi +2 more
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Oscillations of Rapidly Rotating Stars [PDF]
International Astronomical Union Colloquium, 2000 AbstractWe present numerical simulations of gravito-inertial waves propagating in radiative zones of rapidly rotating stars. A first model, using the Boussinesq approximation, allows us to study the oscillations of a quasi-incompressible stratified fluid embedded in a rapidly rotating sphere or spherical shell. In a second step, we investigate the case
Dintrans, Boris, Rieutord, Michel
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Torsional oscillations of magnetized relativistic stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 Strong magnetic fields in relativistic stars can be a cause of crust fracturing, resulting in the excitation of global torsional oscillations. Such oscillations could become observable in gravitational waves or in high-energy radiation, thus becoming a tool for probing the equation of state of relativistic stars.
Messios, Neophytos +2 more
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Oscillating Magnetized Color Superconducting Quark Stars
Universe, 2022 The main objective of this work is to study the structure, composition, and oscillation modes of color superconducting quark stars with intense magnetic fields. We adopted the MIT bag model within the color superconductivity CFL framework, and we included the effects of strong magnetic fields to construct the equation of state of stable quark matter ...
Marcos Osvaldo Celi +3 more
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Rapidly Oscillating Ap Stars [PDF]
Annual Review of Astronomy and Astrophysics, 1982 Article de synthese sur les etoiles Ap a oscillation rapide (roAp) portant sur HR 3831 et le modele de pulsateur oblique, HR 1217 et l'asteroseismologie, les modeles de pulsateurs «tachetes» (Mathys G., 1985, Astron. Astrophys., 151), HD 60435 et le temps de vie des modes de pulsation, les changements de periode, les mecanismes d'excitation, la ...
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Oscillations of rapidly rotating superfluid stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 Using time evolutions of the relevant linearised equations we study non-axisymmetric oscillations of rapidly rotating and superfluid neutron stars. We consider perturbations of Newtonian axisymmetric background configurations and account for the presence of superfluid components via the standard two-fluid model. Within the Cowling approximation, we are
Passamonti, A. +2 more
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Oscillations of rotating neutron stars [PDF]
The Astrophysical Journal, 1991 AbstractWe use a perturbation technique to compute the rotational corrections to the non-radial oscillation spectrum of a realistic neutron-star model. We compute, to first order in the rotation rate, the corrections to the normal mode eigenfrequencies and eigenfunctions.
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Alfvén polar oscillations of relativistic stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 10 pages, 5 ...
Sotani, H., Kokkotas, K. D.
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