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The peak bagging analysis, namely the fitting and identification of single oscillation modes in stars' power spectra, coupled to the very high-quality light curves of red giant stars observed by Kepler, can play a crucial role for studying…

太阳与恒星天体物理 · 物理学 2015-10-21 Enrico Corsaro , Joris De Ridder

The NASA satellite Kepler has gathered about 1420 days-long photometric time series for more than 20000 red giant stars. For about 6600 of them also APOGEE spectroscopic parameters are available, making the sample of high interest for…

太阳与恒星天体物理 · 物理学 2019-06-25 T. Kallinger

To exploit the full potential of Kepler light curves, sophisticated and robust analysis tools are now required more than ever. Characterizing single stars with an unprecedented level of accuracy and subsequently analyzing stellar…

天体物理仪器与方法 · 物理学 2014-11-19 Enrico Corsaro , Joris De Ridder

Since the advent of the space-based photometric missions such as CoRoT and NASA's Kepler, asteroseismology has acquired a central role in our understanding about stellar physics. The Kepler spacecraft, especially, is still releasing…

天体物理仪器与方法 · 物理学 2017-11-29 Enrico Corsaro

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…

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…

太阳与恒星天体物理 · 物理学 2018-02-01 Andrés García Saravia Ortiz de Montellano , Saskia Hekker , Nathalie Themeßl

The Kepler mission has provided exquisite data to perform an ensemble asteroseismic analysis on evolved stars. In this work we systematically characterize solar-like oscillations and granulation for 16,094 oscillating red giants, using…

太阳与恒星天体物理 · 物理学 2018-06-13 Jie Yu , Daniel Huber , Timothy R. Bedding , Dennis Stello , Marc Hon , Simon J. Murphy , Shourya Khanna

Clear power excess in a frequency range typical for solar-type oscillations in red giants has been detected in more than 1000 stars, which have been observed during the first 138 days of the science operation of the NASA Kepler satellite.…

In the context of high-quality asteroseismic data provided by the NASA Kepler mission, we developed a new code, termed Diamonds (high-DImensional And multi-MOdal NesteD Sampling), for fast Bayesian parameter estimation and model comparison…

天体物理仪器与方法 · 物理学 2015-10-21 Enrico Corsaro , Joris De Ridder

The presence of mixed modes makes subgiants excellent targets for asteroseismology, providing a probe for the internal structure of stars. Here we study 36 \emph{Kepler} subgiants with solar-like oscillations and report their oscillation…

太阳与恒星天体物理 · 物理学 2020-05-27 Yaguang Li , Timothy R. Bedding , Tanda Li , Shaolan Bi , Dennis Stello , Yixiao Zhou , Timothy R. White

Frequencies of acoustic and mixed modes in red giant stars are now determined with high precision thanks to the long continuous observations provided by the NASA Kepler mission. Here we consider the eigenfrequencies of nineteen…

太阳与恒星天体物理 · 物理学 2016-06-22 F. Perez Hernandez , R. A. Garcia , E. Corsaro , S. A. Triana , J. De Ridder

Eclipsing binaries (EBs) are unique benchmarks for stellar evolution. On the one hand, detached EBs hosting at least one star with detectable solar-like oscillations constitute ideal test objects to calibrate asteroseismic measurements. On…

太阳与恒星天体物理 · 物理学 2021-04-28 M. Benbakoura , P. Gaulme , J. McKeever , S. Sekaran , P. G. Beck , F. Spada , J. Jackiewicz , S. Mathis , S. Mathur , A. Tkachenko , R. A. García

\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…

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…

太阳与恒星天体物理 · 物理学 2018-01-31 Tanda Li , Timothy R. Bedding , Daniel Huber , Warrick H. Ball , Dennis Stello , Simon J. Murphy , Joss Bland-Hawthorn

We investigate different amplitude scaling relations adopted for the asteroseismology of stars that show solar-like oscillations. Amplitudes are among the most challenging asteroseismic quantities to handle because of the large…

太阳与恒星天体物理 · 物理学 2015-06-12 E. Corsaro , H. -E. Fröhlich , A. Bonanno , D. Huber , T. R. Bedding , O. Benomar , J. De Ridder , D. Stello

The advent of space-based missions like $Kepler$ has revolutionized the study of solar-type stars, particularly through the measurement and modeling of their resonant modes of oscillation. Here we analyze a sample of 66 $Kepler$…

Asteroseismology has proven to be an excellent tool to determine not only the global stellar properties with a good precision but also to infer stellar structure, dynamics, and evolution for a large sample of Kepler stars. Prior to the…

太阳与恒星天体物理 · 物理学 2016-08-17 S. Mathur , R. A. Garcia , D. Huber , C. Regulo , D. Stello , P. G. Beck , K. Houmani , D. Salabert

Context: Asteroseismology has entered a new era with the advent of the NASA Kepler mission. Long and continuous photometric observations of unprecedented quality are now available which have stimulated the development of a number of suites…

太阳与恒星天体物理 · 物理学 2015-03-17 R. Handberg , T. L. Campante

The recently published Kepler mission Data Release 25 (DR25) reported on ~197,000 targets observed during the mission. Despite this, no wide search for red giants showing solar-like oscillations have been made across all stars observed in…

太阳与恒星天体物理 · 物理学 2019-03-13 Marc Hon , Dennis Stello , Rafael A. García , Savita Mathur , Sanjib Sharma , Isabel L. Colman , Lisa Bugnet

The detection of oscillations with a mixed character in subgiants and red giants allows us to probe the physical conditions in their cores. With these mixed modes, we aim at determining seismic markers of stellar evolution. Kepler…

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