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Kepler mission will provide a huge amount of asteroseismic data during the next few years, among which hundreds of solar-like stars will be targeted. The amount of stars and their observation length represent a step forward in the…

Solar and Stellar Astrophysics · Physics 2009-10-02 S. Mathur , R. A. Garcia , C. Regulo , J. Ballot , D. Salabert , W. J. Chaplin

The number of main-sequence stars for which we can observe solar-like oscillations is expected to increase considerably with the short-cadence high-precision photometric observations from the NASA Kepler satellite. Because of this increase…

Solar and Stellar Astrophysics · Physics 2015-05-14 S. Hekker , A. -M Broomhall , W. J. Chaplin , Y. P. Elsworth , S. T. Fletcher , R. New , T. Arentoft , P. -O. Quirion , H. Kjeldsen

Helioseismology has enabled us to better understand the solar interior, while also allowing us to better constrain solar models. But now is a tremendous epoch for asteroseismology as space missions dedicated to studying stellar oscillations…

Solar and Stellar Astrophysics · Physics 2015-05-14 S. Mathur , R. A. Garcia , C. Regulo , O. L. Creevey , J. Ballot , D. Salabert , T. Arentoft , P. -O. Quirion , W. J. Chaplin , H. Kjeldsen

The large number of stars for which uninterrupted high-precision photometric timeseries data are being collected with \textit{Kepler} and CoRoT initiated the development of automated methods to analyse the stochastically excited…

The length of the asteroseismic timeseries obtained from the Kepler satellite analysed here span 19 months. Kepler provides the longest continuous timeseries currently available, which calls for a study of the influence of the increased…

Solar and Stellar Astrophysics · Physics 2015-06-05 S. Hekker , Y. Elsworth , B. Mosser , T. Kallinger , W. J. Chaplin , J. De Ridder , R. A. Garcia , D. Stello , B. D. Clarke , J. R. Hall , K. A. Ibrahim

The importance of numax (the frequency of maximum oscillation power) for asteroseismology has been demonstrated widely in the previous decade, especially for red giants. With the large amount of photometric data from CoRoT, Kepler and TESS,…

Solar and Stellar Astrophysics · Physics 2024-04-17 K. R. Sreenivas , Timothy R. Bedding , Yaguang Li , Daniel Huber , Courtney L. Crawford , Dennis Stello , Jie Yu

We developed, tested and validated a new Fast, Robust and Automated (FRA) tool to detect solar-like oscillations. FRA is based on the detection and measurement of the frequency of maximum oscillation power $\nu_{max}$, without relying on…

Solar and Stellar Astrophysics · Physics 2023-06-27 C. Gehan , T. L. Campante , M. S. Cunha , F. Pereira

Asteroseismology of solar-like oscillators often relies on the comparisons between stellar models and stellar observations in order to determine the properties of stars. The values of the global seismic parameters, $\nu_\mathrm{max}$ (the…

Solar and Stellar Astrophysics · Physics 2019-07-10 Lucas S. Viani , Sarbani Basu , Enrico Corsaro , Warrick H. Ball , William J. Chaplin

The launch of the Kepler mission on 7th March 2009 opened a new bright future for the search of extra-solar planets while a huge amount of stars will be observed leading to the opportunity to better understand stellar evolution. This will…

Solar and Stellar Astrophysics · Physics 2010-04-30 S. Mathur , R. A. Garcia , C. Regulo , O. L. Creevey , J. Ballot , D. Salabert

Space observatories such as $\textit{Kepler}$ have provided data that can potentially revolutionise our understanding of stars. Through detailed asteroseismic analyses we are capable of determining fundamental stellar parameters and reveal…

Solar and Stellar Astrophysics · Physics 2018-02-01 Andrés García Saravia Ortiz de Montellano , Saskia Hekker , Nathalie Themeßl

The long and almost continuous observations by Kepler show clear evidence of a granulation background signal in a large sample of stars, which is interpreted as the surface manifestation of convection. It has been shown that its…

Solar and Stellar Astrophysics · Physics 2014-10-15 T. Kallinger , J. De Ridder , S. Hekker , S. Mathur , B. Mosser , M. Gruberbauer , R. A. Garcia , C. Karoff , J. Ballot

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

Space-based projects are providing a wealth of high-quality asteroseismic data, including frequencies for a large number of stars showing solar-like oscillations. These data open the prospect for precise determinations of key stellar…

Solar and Stellar Astrophysics · Physics 2015-05-20 P. -O. Quirion , J. Christensen-Dalsgaard , T. Arentoft

Recently the number of main-sequence and subgiant stars exhibiting solar-like oscillations that are resolved into individual mode frequencies has increased dramatically. While only a few such data sets were available for detailed modeling…

Asteroseismology with the Kepler space telescope is providing not only an improved characterization of exoplanets and their host stars, but also a new window on stellar structure and evolution for the large sample of solar-type stars in the…

Tens of thousands of solar-like oscillating stars have been observed by space missions. Their photometric variability in the Fourier domain can be parameterized by a sum of two super-Lorentizian functions for granulation and a…

Solar and Stellar Astrophysics · Physics 2022-02-15 Zhao Guo , Eric B. Ford , Dennis Stello , Jacob K. Luhn , Suvrath Mahadevan , Arvind F. Gupta , Jie Yu

We have studied solar-like oscillations in ~800 red-giant stars using Kepler long-cadence photometry. The sample includes stars ranging in evolution from the lower part of the red-giant branch to the Helium main sequence. We investigate the…

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

CoRoT and Kepler high-precision photometric data allowed the detection and characterization of the oscillation parameters in stars other than the Sun. Moreover, thanks to the scaling relations, it is possible to estimate masses and radii…

Solar and Stellar Astrophysics · Physics 2018-06-13 S. Barceló Forteza , T. Roca Cortés , R. A. García

With the success of the Kepler and CoRoT missions, the number of stars with detected solar-like oscillations has increased by several orders of magnitude, for the first time we are able to perform large-scale ensemble asteroseismology of…

Solar and Stellar Astrophysics · Physics 2015-05-30 Timothy R. White , Timothy R. Bedding , Dennis Stello , Jørgen Christensen-Dalsgaard , Daniel Huber , Hans Kjeldsen
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