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Asteroseismology is a powerful tool to measure the fundamental properties of stars and probe their interiors. This is particularly efficient for red giants because their modes are well detectable and give information on their deep layers.…

Solar and Stellar Astrophysics · Physics 2017-12-05 M. Benbakoura , P. Gaulme , J. McKeever , P. G. Beck , J. Jackiewicz , R. A. Garcia

Asteroseismic scaling relations are often used to derive stellar masses and radii, particulaly for stellar, exoplanet, and Galactic studies. It is therefore important that their precisions are known. Here we measure the intrinsic scatter of…

Solar and Stellar Astrophysics · Physics 2021-01-06 Yaguang Li , Timothy R. Bedding , Dennis Stello , Sanjib Sharma , Daniel Huber , Simon J. Murphy

Establishing relations between global stellar parameters and asteroseismic quantities can help improve our understanding of stellar astrophysics and facilitate the interpretation of observations. We present an observed relation between the…

Solar and Stellar Astrophysics · Physics 2015-05-14 D. Stello , W. J. Chaplin , S. Basu , Y. Elsworth , T. R. Bedding

We present an asteroseismic analysis of 33 solar-type stars observed in short cadence during Campaigns (C) 1-3 of the NASA K2 mission. We were able to extract both average seismic parameters and individual mode frequencies for stars with…

Distances from the Gaia mission will no doubt improve our understanding of stellar physics by providing an excellent constraint on the luminosity of the star. However, it is also clear that high precision stellar properties from, for…

Solar and Stellar Astrophysics · Physics 2012-12-07 O. L. Creevey , F. Thévenin

The accuracy of stellar masses and radii determined from asteroseismology is not known! We examine this issue for giant stars by comparing classical measurements of detached eclipsing binary systems (dEBs) with asteroseismic measurements…

\Kepler has revolutionised our understanding of both exoplanets and their host stars. Asteroseismology is a valuable tool in the characterisation of stars and \Kepler is an excellent observing facility to perform asteroseismology. Here we…

We aim to establish and improve the accuracy level of asteroseismic estimates of mass, radius, and age of giant stars. This can be achieved by measuring independent, accurate, and precise masses, radii, effective temperatures and…

Asteroseismology of stellar clusters is potentially a powerful tool. The assumption of a common age, distance, and chemical composition provides constraints on each cluster member, which significantly improves the asteroseismic output.…

We present HD-TESS, a catalog of 1,709 bright ($V\sim3-10$) red giants from the Henry Draper (HD) Catalog with asteroseismic measurements based on photometry from NASA's Transiting Exoplanet Survey Satellite (TESS). Using light curves…

Solar and Stellar Astrophysics · Physics 2022-09-21 Marc Hon , James S. Kuszlewicz , Daniel Huber , Dennis Stello , Claudia Reyes

Precise asteroseismic parameters allow one to quickly estimate radius and mass distributions for large samples of stars. A number of automated methods are available to calculate the frequency of maximum acoustic power ($\nu_{\mathrm{max}}$)…

Solar and Stellar Astrophysics · Physics 2022-03-14 Claudia Reyes , Dennis Stello , Marc Hon , Joel C. Zinn

Stellar models rely on a number of free parameters. High-quality observations of eclipsing binary stars observed by Kepler offer a great opportunity to calibrate model parameters for evolved stars. Our study focuses on six Kepler red giants…

Solar and Stellar Astrophysics · Physics 2018-01-31 Tanda Li , Timothy R. Bedding , Daniel Huber , Warrick H. Ball , Dennis Stello , Simon J. Murphy , Joss Bland-Hawthorn

Context: Four open clusters are present in the Kepler field of view and timeseries of nearly a year in length are now available. These timeseries allow us to derive asteroseismic global oscillation parameters of red-giant stars in the three…

A growing number of solar-like oscillations has been detected in red giant stars thanks to CoRoT and Kepler space-crafts. The seismic data gathered by CoRoT on red giant stars allow us to test mode driving theory in physical conditions…

Solar and Stellar Astrophysics · Physics 2015-06-05 R. Samadi , K. Belkacem , M. -A. Dupret , H. -G. Ludwig , F. Baudin , E. Caffau , M. -J. Goupil , C. Barban

The unparalleled photometric data obtained by NASA's Kepler Space Telescope has led to improved understanding of red-giant stars and binary stars. We discuss the characterization of known eccentric system, containing a solar-like…

Solar and Stellar Astrophysics · Physics 2015-11-23 P. G. Beck , K. Hambleton , J. Vos , T. Kallinger , R. A. Garcia , S. Mathur , K. Houmani

Context : We still do not know which mechanisms are responsible for the transport of angular momentum inside stars. The recent detection of mixed modes that contain the signature of rotation in the spectra of Kepler subgiants and red giants…

In recent years the global seismic scaling relations for the frequency of maximum power and for the large frequency separation have caught the attention of various fields of astrophysics. With the exquisite photometry of \textit{Kepler},…

Solar and Stellar Astrophysics · Physics 2018-08-29 T. Kallinger , P. G. Beck , D. Stello , R. A. Garcia

Oscillation frequencies are the most accurate properties one can measure for a star, potentially allowing detailed tests of stellar models and evolution theories. We briefly review asteroseismology for two classes of stars. In delta Scuti…

Astrophysics · Physics 2007-05-23 Hans Kjeldsen , Timothy R. Bedding

Constraining stellar models using asteroseismic and spectroscopic observations is a powerful method for precisely determining the fundamental properties of stars in different kinematic components of our galaxy. We use spectroscopy and…

Solar and Stellar Astrophysics · Physics 2026-03-05 Christopher J. Lindsay , J. M. Joel Ong , Sarbani Basu , Samuel Grunblatt , Marc Hon

In recent years, our understanding of solar-like oscillations from main sequence to red giant stars has improved dramatically thanks to pristine data collected from space telescopes. One of the remaining open questions focuses around the…

Solar and Stellar Astrophysics · Physics 2021-03-31 M. Müllner , K. Zwintz , E. Corsaro , T. Steindl , I. Potravnov , E. W. Guenther , A. Kniazev , V. Gvaramadze