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Related papers: Modeling the Asteroseismic Surface Term across the…

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Sparked by the asteroseismic space revolution, ensemble studies have been used to produce empirical relations linking observed seismic properties and fundamental stellar properties. Cluster stars are particularly valuable because they have…

Asteroseismology allows for deriving precise values of surface gravity of stars. The accurate asteroseismic determinations now available for large number of stars in the Kepler fields can be used to check and calibrate surface gravities…

Thanks to asteroseismology, constraints on the core rotation rate are available for hundreds of low- and intermediate-mass stars in evolved phases. Current physical processes tested in stellar evolution models cannot reproduce the evolution…

Solar and Stellar Astrophysics · Physics 2022-08-03 F. D. Moyano , P. Eggenberger , G. Meynet , C. Gehan , B. Mosser , G. Buldgen , S. J. A. J. Salmon

Nowadays large spectroscopic surveys, like the Gaia-ESO Survey (GES), provide unique stellar databases for better investigating the formation and evolution of our Galaxy. Great attention must be paid to the accuracy of the basic stellar…

Solar and Stellar Astrophysics · Physics 2016-11-15 M. Valentini , C. Chiappini , A. Miglio , J. Montalbán , T. Rodrigues , B. Mosser , F. Anders

Core overshoot is a large source of uncertainty in constructing stellar models. Whether the amount of overshoot is constant or mass dependent is not completely known, even though models sometimes assume a mass-based trend. In this work we…

Solar and Stellar Astrophysics · Physics 2020-11-25 Lucas S. Viani , Sarbani Basu

Since the onset of the `space revolution' of high-precision high-cadence photometry, asteroseismology has been demonstrated as a powerful tool for informing Galactic archaeology investigations. The launch of the NASA TESS mission has…

Red-giant stars are low- to intermediate-mass ($M \lesssim 10$~M$_{\odot}$) stars that have exhausted hydrogen in the core. These extended, cool and hence red stars are key targets for stellar evolution studies as well as galactic studies…

Solar and Stellar Astrophysics · Physics 2017-11-29 Saskia Hekker

To better understand how planets form, it is important to study planet occurrence rates as a function of stellar mass. However, estimating masses of field stars is often difficult. Over the past decade, a controversy has arisen about the…

Magnetic activity effects are typically neglected in asteroseismic modelling of solar-type stars, presuming that these effects can be accounted for in the parametrisation of the surface effects. It was however demonstrated that magnetic…

Solar and Stellar Astrophysics · Physics 2025-07-16 Jérôme Bétrisey , Anne-Marie Broomhall , Sylvain N. Breton , Rafael A. García , Henry Davenport , Oleg Kochukhov

As the amount of asteroseismic data available continues to grow, the inability to accurately model observed oscillation frequencies is becoming a critical problem for interpreting these frequencies. A major component of this problem is the…

Solar and Stellar Astrophysics · Physics 2020-07-01 J. Schou , A. C. Birch

Imagine we could do asteroseismology of large samples of OB-type stars by using just one spectrum per target. That would be great! But this is probably a crazy and stupid idea. Or maybe not. Maybe we have the possibility to open a new…

Solar and Stellar Astrophysics · Physics 2015-06-22 S. Simón-Díaz

Asteroseismology has emerged as the best way to characterize the global and internal properties of nearby stars. Often, this characterization is achieved by fitting stellar evolution models to asteroseismic observations. The star under…

Solar and Stellar Astrophysics · Physics 2020-12-25 Earl P. Bellinger , Sarbani Basu , Saskia Hekker

Context. The large quantity of high-quality asteroseismic data that obtained from space-based photometric missions and the accuracy of the resulting frequencies motivate a careful consideration of the accuracy of computed oscillation…

Asteroseismology is a powerful tool to precisely determine the evolutionary status and fundamental properties of stars. With the unprecedented precision and nearly continuous photometric data acquired by the NASA Kepler mission, parameters…

Solar and Stellar Astrophysics · Physics 2016-06-22 Liang Wang , Wei Wang , Yue Wu , Gang Zhao , Yinbi Li , Ali Luo , Chao Liu , Yong Zhang , Yonghui Hou , Yuefei Wang

Asteroseismology provides a unique tool for studying stellar interiors. Recently p modes have been detected on the bright solar-like star alpha Cen A thanks to high-precision radial-velocity measurements. However a better characterisation…

Astrophysics · Physics 2009-11-13 M. Bazot , F. Bouchy , H. Kjeldsen , S. Charpinet , M. Laymand , S. Vauclair

Theoretical works have looked into the various topologies and amplitudes, as well as the stability of the magnetic field that is expected to be present in the radiative interior of stars evolving after the main sequence. Such internal…

Solar and Stellar Astrophysics · Physics 2022-11-09 L. Bugnet

Asteroseismology is a promising tool to study Galactic structure and evolution because it can probe the ages of stars. Earlier attempts comparing seismic data from the {\it Kepler} satellite with predictions from Galaxy models found that…

Asteroseismology provides global stellar parameters such as masses, radii or surface gravities using the mean global seismic parameters as well as the effective temperature for thousands of low-mass stars $(0.8 M_\odot <M<3 M_\odot)$. This…

Solar and Stellar Astrophysics · Physics 2018-11-29 L. Bugnet , R. A. García , G. R. Davies , S. Mathur , E. Corsaro , O. J. Hall , B. M. Rendle

Yearslong time series of high-precision brightness measurements have been assembled for thousands of stars with telescopes operating in space. Such data have allowed astronomers to measure the physics of stellar interiors via nonradial…

Solar and Stellar Astrophysics · Physics 2021-01-27 C. Aerts
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