Results 31 to 40 of about 42,381 (333)

Three evolutionary paths for magnetar oscillations [PDF]

, 2014
Quasi-periodic oscillations have been seen in the light curves following several magnetar giant flares. These oscillations are of great interest as they probably provide our first ever view of the normal modes of oscillation of neutron stars.
Glampedakis, K., Jones, D. I.
core   +1 more source

Excitation of stellar p-modes by turbulent convection: 1. Theoretical formulation [PDF]

, 2001
Stochatic excitation of stellar oscillations by turbulent convection is investigated and an expression for the power injected into the oscillations by the turbulent convection of the outer layers is derived which takes into account excitation through ...
Böhm-Vitense, Kraichnan, Lighthill, M.-J. Goupil, R. Samadi, Samadi, Stein, Tennekes, Unno   +8 more
core   +2 more sources

Empirical formula of crustal torsional oscillations

, 2016
Crustal torsional oscillations depend on not only crust properties but also the stellar mass and radius. Thus, one could extract stellar information by identifying the observed frequencies of stellar oscillations with the crustal torsional oscillations ...
Sotani, Hajime
core   +1 more source

Stellar oscillations - I - The adiabatic case [PDF]

EAS Publications Series, 2015
This lecture on adiabatic oscillations is intended to present the basis of asteroseismology and to serve as an introduction for other lectures of the EES 2014. It also exposes the state-of-the-art of solar-like oscillation analysis, as revealed by the space missions CoRoT and Kepler.
openaire   +2 more sources

Detection of stellar oscillations in HWVir

Open Astronomy, 2016
We present our analysis of K2 observations of the binary system, HWVir. We processed the raw Kepler data and used Fourier analysis to search for periodic signals that could be associated with pulsations.
Baran Andrzej S., Østensen Roy H., Telting John H.   +2 more
doaj   +1 more source

Stellar hydrodynamics caught in the act: Asteroseismology with CoRoT and Kepler

, 2011
Asteroseismic investigations, particularly based on data on stellar oscillations from the CoRoT and Kepler space missions, are providing unique possibilities for investigating the properties of stellar interiors.
Auvergne, Baglin, Baglin, Baudin, Bazot, Bedding, Blažko, Borucki, Bouchy, Bouchy, Carrier, Catala, Chadid, Charpinet, Christensen-Dalsgaard, Degroote, Deheuvels, Dominik, Dupret, Dziembowski, Fontaine, Frandsen, Gough, Gough, Grundahl, Grundahl, Handler, Hekker, Hekker, Houdek, Huber, Jørgen Christensen-Dalsgaard, Kallinger, Kallinger, Kjeldsen, Kjeldsen, Kolenberg, Kolenberg, Kuschnig, Lamb, Maeder, Mathis, Mathis, Michael J. Thompson, Miesch, Miglio, Miglio, Montalbán, Moskalik, Mosser, Mosser, Palacios, Palacios, Pamyatnykh, Poretti, Smith, Soszyński, Trampedach, Van Grootel   +58 more
core   +1 more source

Magnetic Perturbations to Stellar Oscillation Eigenfrequencies [PDF]

Symposium - International Astronomical Union, 1988
Magnetic fields contribute to the splitting of the degeneracy of modes of like order and degree. The splitting is estimated for some simple hypothetical toroidal magnetic field configurations in the sun, and the results are compared with previous asymptotic estimates.
D.O. Gough, M.J. Thompson
openaire   +1 more source

The role and implications of mammalian cellular circadian entrainment

FEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Asteroseismic Investigation of Known Planet Hosts in the Kepler Field

, 2009
In addition to its great potential for characterizing extra-solar planetary systems the Kepler mission is providing unique data on stellar oscillations.
Bakos, Bedding, Borucki, Borucki, Brown, Böhm-Vitense, Christensen-Dalsgaard, Dittmann, Gilliland, Gilliland, Gilliland, Grevesse, Kjeldsen, Kjeldsen, Kjeldsen, Koch, Michaud, Nutzman, O'Donovan, Pál, Sozzetti, Vandakurov, Yi   +22 more
core   +1 more source

Fourier Analysis of Gapped Time Series: Improved Estimates of Solar and Stellar Oscillation Parameters [PDF]

, 2008
Quantitative helio- and asteroseismology require very precise measurements of the frequencies, amplitudes, and lifetimes of the global modes of stellar oscillation.
B.A. Miller, D.E. Winget, E. Fossat, E.R. Anderson, J. Cuypers, K.G. Libbrecht, L. Gizon, Laurent Gizon, M. Gabriel, M.G. Kendall, P. Goldreich, R. Stein, R.A. Horn, R.P. Butler, S. Brandt, T. Appourchaux, T. Appourchaux, T. Toutain, T.L. Duvall, T.L. Duvall, T.R. Bedding, Thorsten Stahn   +21 more
core   +1 more source