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Asteroseismic observations are crucial to constrain stellar models with precision. Bayesian Estimation of STellar Parameters (BESTP) is a tool that utilizes Bayesian statistics and nested sampling Monte Carlo algorithm to search for the…

Solar and Stellar Astrophysics · Physics 2021-09-24 Chen Jiang , Laurent Gizon

The study of planet occurrence as a function of stellar mass is important for a better understanding of planet formation. Estimating stellar mass, especially in the red giant regime, is difficult. In particular, stellar masses of a sample…

NASA's Kepler Space Telescope was designed to determine the frequency of Earth-sized planets orbiting Sun-like stars, but these planets are on the very edge of the mission's detection sensitivity. Accurately determining the occurrence rate…

Earth and Planetary Astrophysics · Physics 2018-02-14 Christopher J. Shallue , Andrew Vanderburg

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

We calculate precise stellar radii and surface gravities from the asteroseismic analysis of over 500 solar-type pulsating stars observed by the Kepler space telescope. These physical stellar properties are compared with those given in the…

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

The theoretical oscillation frequencies of even the best asteroseismic models of solar-like oscillators show significant differences from observed oscillation frequencies. Structure inversions seek to use these frequency differences to…

Solar and Stellar Astrophysics · Physics 2024-02-02 Lynn Buchele , Earl P. Bellinger , Saskia Hekker , Sarbani Basu , Warrick Ball , Jørgen Christensen-Dalsgaard

The properties of the acoustic modes are sensitive to magnetic activity. The unprecedented long-term Kepler photometry, thus, allows stellar magnetic cycles to be studied through asteroseismology. We search for signatures of magnetic cycles…

Solar and Stellar Astrophysics · Physics 2018-12-06 A. R. G. Santos , T. L. Campante , W. J. Chaplin , M. S. Cunha , M. N. Lund , R. Kiefer , D. Salabert , R. A. Garcia , G. R. Davies , Y. Elsworth , R. Howe

Asteroseismology with the space-borne missions CoRoT and Kepler provides a powerful mean of testing the modeling of transport processes in stars. Rotational splittings are currently measured for a large number of red giant stars and can…

Solar and Stellar Astrophysics · Physics 2015-06-12 M. J. Goupil , B. Mosser , J. P. Marques , R. M. Ouazzani , K. Belkacem , Y. Lebreton , R. Samadi

Very high precision seismic space missions such as CoRoT and Kepler provide the means for testing the modelling of transport processes in stellar interiors. For some stars, such as $\delta$ Scuti $\gamma$ Doradus and Be stars, for instance,…

Solar and Stellar Astrophysics · Physics 2015-07-15 Rhita-Maria Ouazzani , Ian W. Roxburgh , Marc-Antoine Dupret

The space-borne observatories CoRoT (Convection Rotation and planetary Transits) and Kepler have provided photometric time series data of unprecedented precision for large numbers of stars. These data have revolutionized the fields of…

Solar and Stellar Astrophysics · Physics 2013-08-23 S. Hekker

After a brief introduction into the asteroseismic modelling of stars, we provide a compilation of the current seismic estimates of the core overshooting parameter and of the rotational frequency of single and binary massive stars. These…

Solar and Stellar Astrophysics · Physics 2014-03-05 Conny Aerts

The advent of asteroseismology as the golden path to precisely characterize single stars naturally led to synergies with the field of exoplanetology. Today, the precise determination of stellar masses, radii and ages for exoplanet-host…

Solar and Stellar Astrophysics · Physics 2022-01-26 G. Buldgen , G. Ottoni , C. Pezzotti , A. Lyttle , P. Eggenberger , S. Udry , D. Ségransan , A. Miglio , M. Mayor , C. Lovis , Y. Elsworth , G. R. Davies , W. H. Ball

We review the nature of the oscillations of main-sequence and supergiant stars of spectral type B. Seismic tuning of the interior structure parameters of the $\beta $Cep stars has been achieved since three years. The results are based on…

Astrophysics · Physics 2007-05-23 C. Aerts

Kepler Mission results are rapidly contributing to fundamentally new discoveries in both the exoplanet and asteroseismology fields. The data returned from Kepler are unique in terms of the number of stars observed, precision of photometry…

The CoRoT and Kepler space missions have detected oscillations in hundreds of Sun-like stars and thousands of field red-giant stars. This has opened the door to a new era of stellar population studies in the Milky Way. We report on the…

Solar and Stellar Astrophysics · Physics 2019-08-19 Andrea Miglio , Leo Girardi , Thaise S. Rodrigues , Dennis Stello , William J. Chaplin

In the past decade, helioseismology has revolutionized our understanding of the interior structure of the Sun. In the next decade, asteroseismology will place this knowledge into context, by providing structural information for dozens of…

Astrophysics · Physics 2007-05-23 T. S. Metcalfe , T. M. Brown , J. Christensen-Dalsgaard

Oscillation properties are usually measured by fitting symmetric Lorentzian profiles to the power spectra of Sun-like stars. However the line profiles of solar oscillations have been observed to be asymmetrical for the Sun. The physical…

Solar and Stellar Astrophysics · Physics 2018-05-02 O. Benomar , Mjo. Goupil , K. Belkacem , T. Appourchaux , M. B. Nielsen , M. Bazot , L. Gizon , S. Hanasoge , K. R. Sreenivasan , B. Marchand

The Kepler space telescope has provided time series of red giants of such unprecedented quality that a detailed asteroseismic analysis becomes possible. For a limited set of about a dozen red giants, the observed oscillation frequencies…

Solar and Stellar Astrophysics · Physics 2017-06-14 Santiago Andrés Triana , Enrico Corsaro , Joris De Ridder , Alfio Bonanno , Fernando Pérez Hernández , Rafael García

In the context of the space-based mission CoRoT, devoted to asteroseismology and search for planet transits, we analyse the accuracy of fundamental stellar parameters (mass, radius, luminosity) that can be obtained from asteroseismological…

Solar and Stellar Astrophysics · Physics 2015-05-13 C. Mulet-Marquis , I. Baraffe , S. Aigrain , F. Pont
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