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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

We have studied solar cycle changes in the large frequency separations that can be observed in Birmingham Solar Oscillations Network (BiSON) data. The large frequency separation is often one of the first outputs from asteroseismic studies…

Solar and Stellar Astrophysics · Physics 2015-05-27 A. -M. Broomhall , W. J. Chaplin , Y. Elsworth , R. New

Asteroseismology using space-based telescopes is vital to our understanding of stellar structure and evolution. {\textit{CoRoT}}, {\textit{Kepler}}, and {\textit{TESS}} space telescopes have detected large numbers of solar-like oscillating…

Solar and Stellar Astrophysics · Physics 2021-05-12 Z. Çelik Orhan , M. Yıldız , C. Kayhan

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…

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

Context: Mode identification has remained a major obstacle in the interpretation of pulsation spectra in rapidly rotating stars. Aims: We would like to test mode identification methods and seismic diagnostics in rapidly rotating stars,…

Solar and Stellar Astrophysics · Physics 2017-05-24 D. R. Reese , F. Lignières , J. Ballot , M. -A. Dupret , C. Barban , C. van 't Veer-Menneret , K. B. MacGregor

With the space-borne missions CoRoT and Kepler, a large amount of asteroseismic data is now available. So-called global oscillation parameters are inferred to characterize the large sets of stars, to perform ensemble asteroseismology, and…

Solar and Stellar Astrophysics · Physics 2015-06-12 B. Mosser , E. Michel , K. Belkacem , M. J. Goupil , A. Baglin , C. Barban , J. Provost , R. Samadi , M. Auvergne , C. Catala

After more than one year of operation, the Kepler photometer has already provided exquisite data of solar-type stars. During the survey phase, 42 stars have been continuously observed. It appeared that five stars show evidence of…

Solar and Stellar Astrophysics · Physics 2011-10-06 S. Mathur

Context. The advent of space-borne missions such as CoRoT or Kepler providing photometric data has brought new possibilities for asteroseismology across the H-R diagram. Solar-like oscillations are now observed in many stars, including red…

Thanks to their high quality, new and upcoming asteroseismic observations - with CoRoT, Kepler, and from the ground... - can benefit from the experience gained with helioseismology. We focus in this paper on solar-like oscillations, for…

Astrophysics · Physics 2008-04-02 J. Ballot , T. Appourchaux , T. Toutain , M. Guittet

The NASA Kepler mission has been continuously monitoring the same field of the sky since the successful launch in March 2009, providing high-quality stellar lightcurves that are excellent data for asteroseismology, far superior to any other…

Solar and Stellar Astrophysics · Physics 2015-06-18 A. O. Thygesen , H. Bruntt , W. J. Chaplin , S. Basu

Asteroseismology provides a powerful way to constrain stellar parameters. Solar-like oscillations have been observed on subgiant stars with the \emph{Kepler\/} mission. The continuous and high-precision time series enables us to carry out a…

Solar and Stellar Astrophysics · Physics 2015-07-29 Zhijia Tian , Shaolan Bi , Timothy R. Bedding , Wuming Yang

Cool main-sequence, sub-giant and red-giant stars all show solar-like oscillations, pulsations that are excited and intrinsically damped by near-surface convection. Many overtones are typically excited to observable amplitudes, giving a…

Solar and Stellar Astrophysics · Physics 2019-04-17 William J. Chaplin , Heather M. Cegla , Christopher A. Watson , Guy R. Davies , Warrick H. Ball

Asteroseismology, i.e. the study of the internal structures of stars via their global oscillations, is a valuable tool to obtain stellar parameters such as mass, radius, surface gravity and mean density. These parameters can be obtained…

Solar and Stellar Astrophysics · Physics 2015-06-16 S. Hekker , Y. Elsworth , S. Basu , A. Mazumdar , V. Silva Aguirre , W. J. Chaplin

The rapidly increasing volume of asteroseismic observations on solar-type stars has revealed a need for automated analysis tools. The reason for this is not only that individual analyses of single stars are rather time consuming, but more…

Solar and Stellar Astrophysics · Physics 2010-03-23 C. Karoff , T. L. Campante , W. J. Chaplin

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

Gravito-acoustic modes in the Sun and other stars propagate in resonant cavities with a frequency below a given limit known as the cut-off frequency. At higher frequencies, waves are no longer trapped in the stellar interior and become…

Solar and Stellar Astrophysics · Physics 2015-11-04 A. Jimenez , R. A. Garcia , F. Perez Hernandez , S. Mathur

Context. The CoRoT short runs give us the opportunity to observe a large variety of late-type stars through their solar-like oscillations. We report observations of the star HD175726 that lasted for 27 days during the first short run of 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

Observations from the Kepler satellite were recently published for three bright G-type stars, which were monitored during the first 33.5d of science operations. One of these stars, KIC 11026764, exhibits a characteristic pattern of…