Results 1 to 10 of about 2,129 (197)
Highlights of Discoveries for δ Scuti Variable Stars From the Kepler Era
Frontiers in Astronomy and Space Sciences, 2021 The NASA Kepler and follow-on K2 mission (2009–2018) left a legacy of data and discoveries, finding thousands of exoplanets, and also obtaining high-precision long time-series data for hundreds of thousands of stars, including many types of pulsating ...
Joyce Ann Guzik
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The potential of Shannon entropy to find the large separation of δ Scuti stars: The entropy spectrum
Frontiers in Astronomy and Space Sciences, 2022 This study explores the use of Shannon entropy to find periodic patterns in the oscillation spectra of δ Scuti stars. We have developed a new diagnostic tool for detecting potential patterns that scans for minimal entropic states in the well-known ...
J. C. Suárez
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A Mini-Review of Accreting Pulsating White Dwarfs
Frontiers in Astronomy and Space Sciences, 2021 The discovery in 1998 of a pulsating white dwarf in the cataclysmic variable GW Lib opened up a new avenue of exploration in the asteroseismology of white dwarfs.
Paula Szkody
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Applied Sciences, 2022 Asteroseismology studies the physical structure of stars by analyzing their solar-type oscillations as seismic waves and frequency spectra. The physical processes in stars and oscillations are similar to the Sun, which is more evolved to the red-giant ...
Ali Raza +5 more
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Asteroseismology of High-Mass Stars: New Insights of Stellar Interiors With Space Telescopes
Frontiers in Astronomy and Space Sciences, 2020 Massive stars are important metal factories in the Universe. They have short and energetic lives, and many of them inevitably explode as a supernova and become a neutron star or black hole.
Dominic M. Bowman
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The Pre-main Sequence: Challenges and Prospects for Asteroseismology
Frontiers in Astronomy and Space Sciences, 2022 Stars do not simply pop up on the main sequence. Before the stars arrive on the zero-age main sequence, they form in the collapses of molecular clouds, gain matter through accretion processes, and compress their cores until hydrogen can burn in full ...
Konstanze Zwintz, Thomas Steindl
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White Dwarfs as Physics Laboratories: Lights and Shadows
Frontiers in Astronomy and Space Sciences, 2022 The evolution of white dwarfs is essentially a gravothermal process of cooling in which the basic ingredients for predicting their evolution are well identified, although not always well understood. There are two independent ways to test the cooling rate.
J. Isern +6 more
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On the Detectability of Large-Scale Flows by Asteroseismology
Frontiers in Astronomy and Space Sciences, 2020 Large-scale convective motions are an integral part of stellar interior dynamics and might play a relevant role in stellar dynamo processes. However, they are difficult to detect or characterize.
Markus Roth, Wiebke Herzberg
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Asteroseismic inferences from the study of non-linearities in δ Sct stars
Frontiers in Astronomy and Space Sciences, 2022 Many pulsating star light curves must be interpreted strictly within the framework of a non-linear theory. The detection of non-linear interactions between pulsation modes has increased due to the ultra-precise photometric data provided by space missions.
Mariel Lares-Martiz
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Frontiers in Astronomy and Space Sciences, 2022 We present a new synergic strategy that merges the potential of asteroseismology with solar space weather/climate techniques in order to characterize solar-like stars and their interaction with hosted exoplanets. The method is based on the use of seismic
Raffaele Reda +8 more
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