Results 1 to 10 of about 362 (162)
The imprint of star formation on stellar pulsations [PDF]
Nature Communications, 2022 The classical stellar evolution concept assumes that when the stars arrive on the main sequence, there is no traceable mark remains about their early evolutionary history.
Thomas Steindl +2 more
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Microwave imaging of quasi-periodic pulsations at flare current sheet [PDF]
Nature Communications, 2022 Quasi-periodic pulsations (QPPs) are frequently detected in solar and stellar flares, but the underlying physical mechanisms are still to be ascertained.
Yuankun Kou +6 more
doaj +2 more sources
QUASI-PERIODIC PULSATIONS IN SOLAR AND STELLAR FLARES. REVIEW
Solnečno-zemnaâ Fizika, 2020 This paper provides an overview of the state-of-the-art studies of oscillatory processes in solar and stellar flares, based on modern observational data from ground-based and space-borne instruments with high temporal, spatial, and spectral resolution in
V M Nakariakov +2 more
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Non-Radial Pulsations of Distorted Stellar Structures: Effect of Mass Variation [PDF]
International Journal of Mathematical, Engineering and Management Sciences, 2021 Eigen-frequencies (EF) of non–radial modes (NRM) of pulsations of differentially rotating (D R) and tidally distorted (T D) stellar models by considering the effect of mass variation (MV) on its equi-potentials surfaces inside a star. The method utilizes
Seema Saini +3 more
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The Directly Imaged Exoplanet Host Star 51 Eridani is a Gamma Doradus Pulsator
The Astrophysical Journal, 2022 51 Eri is well known for hosting a directly imaged giant planet and for its membership to the β Pictoris moving group. Using 2 minute cadence photometry from the Transiting Exoplanet Survey Satellite (TESS), we detect multiperiodic variability in 51 Eri ...
Aldo G. Sepulveda +5 more
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Looking into dark matter with asteroseismology
Frontiers in Astronomy and Space Sciences, 2022 Dark matter remains as an elusive component of modern Cosmology. According to previous research, stellar physics observables can be affected by the presence of hypothetical dark matter particles, which can be produced or accreted into the stars.
Adrián Ayala
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On some observational consequences of nonlinearities in stellar pulsations
Open Astronomy, 1998 Goupil M. J. +2 more
exaly +2 more sources
Detection and Seismic Study of Gravity and Rossby Mode Pulsations in Four Contact Binaries
The Astrophysical Journal, 2023 We report the detection of gravity ( g ) and Rossby ( r ) mode pulsations of four short-period eclipsing binaries, KIC 5439790, KIC 7501230, KIC 9350889, and KIC 9453192 based on the 4 yr Kepler high-precision photometry.
X. B. Zhang +3 more
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Pulsating Stellar Atmospheres [PDF]
Symposium - International Astronomical Union, 1997 We review the basic concepts, present state of theoretical models, and the future prospects for theory and observations of pulsating stellar atmospheres. Our emphasis is on radially pulsating cool stars, which dynamic atmospheres provide a general example for the differences with standard static model atmospheres.
openaire +3 more sources
Solar-Like Oscillators in the Kepler Era: A Review
Frontiers in Astronomy and Space Sciences, 2021 Many late-type stars across the Milky Way exhibit observable pulsations similar to our Sun that open up a window into stellar interiors. The NASA Kepler mission, a space-based photometric telescope, measured the micro-magnitude luminosity fluctuations ...
Jason Jackiewicz
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