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Asteroseismic methods offer a means to investigate stellar activity and activity cycles as well as to identify those properties of stars which are crucial for the operation of stellar dynamos. With data from CoRoT and \textit{Kepler},…

Solar and Stellar Astrophysics · Physics 2019-08-06 René Kiefer , Anne-Marie Broomhall , Warrick H. Ball

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…

Solar and Stellar Astrophysics · Physics 2015-06-12 E. Corsaro , H. -E. Fröhlich , A. Bonanno , D. Huber , T. R. Bedding , O. Benomar , J. De Ridder , D. Stello

We present a study of 33 {\it Kepler} planet-candidate host stars for which asteroseismic observations have sufficiently high signal-to-noise ratio to allow extraction of individual pulsation frequencies. We implement a new Bayesian scheme…

Solar-like oscillations have been observed by Kepler and CoRoT in many solar-type stars, thereby providing a way to probe the stars using asteroseismology. We provide the mode linewidths and mode heights of the oscillations of various stars…

The Transiting Exoplanet Survey Satellite (TESS) mission has provided photometric light curves for stars across nearly the entire sky. This allows for the application of asteroseismology to a pool of potential solar-like oscillators that is…

Asteroseismology allows us to probe the internal structure of stars through their global modes of oscillation. Thanks to missions such as the NASA Kepler space observatory, we now have high-quality asteroseismic data for nearly 100…

Solar and Stellar Astrophysics · Physics 2020-01-15 Earl Patrick Bellinger

Scaling relations between asteroseismic quantities and stellar parameters are essential tools for studying stellar structure and evolution. We will address two of them, namely, the relation between the large frequency separation ($\Delta…

Solar and Stellar Astrophysics · Physics 2013-07-12 K. Belkacem , R. Samadi , B. Mosser , M. J. Goupil , H. -G. Ludwig

We present a homogeneous catalog of global asteroseismic parameters and derived stellar parameters for 765 Kepler main-sequence and subgiant stars. The catalog was produced by re-analyzing all available Kepler DR25 short-cadence data using…

Solar and Stellar Astrophysics · Physics 2026-04-20 Maryum Sayeed , Daniel Huber , Ashley Chontos , Yaguang Li

Context: The study of stellar structure and evolution depends crucially on accurate stellar parameters. The photometry from space telescopes has provided superb data that allowed asteroseismic characterisation of thousands of stars.…

Due to their wide wavelength coverage across the millimetre to centimetre (mm - cm) range and their increased sensitivity, modern interferometric arrays facilitate observations of the thermal and non-thermal emission from different stellar…

Solar and Stellar Astrophysics · Physics 2021-12-01 Atul Mohan , Sven Wedemeyer , Sneha Pandit , Maryam Saberi , Peter H. Hauschildt

Setting the timeline of the events which shaped the Milky Way disc through its 13 billion year old history is one of the major challenges in the theory of galaxy formation. Achieving this goal is possible using late-type stars, which in…

Solar and Stellar Astrophysics · Physics 2016-10-26 Luca Casagrande

Mass estimates of K giants are generally very uncertain. Traditionally, stellar masses of single field stars are determined by comparing their location in the Hertzsprung-Russell diagram with stellar evolutionary models. Applying an…

Astrophysics · Physics 2009-11-13 D. Stello , H. Bruntt , H. Preston , D. Buzasi

Having started science operations in May 2009, the Kepler photometer has been able to provide exquisite data of solar-like stars. Five out of the 42 stars observed continuously during the survey phase show evidence of oscillations, even…

Since the first observations of solar oscillations in 1962, helioseismology has probably been one of the most successful fields of astrophysics. Besides the improvement of observational data, solar seismologists developed sophisticated…

Solar and Stellar Astrophysics · Physics 2019-12-05 G. Buldgen , C. Pezzotti , M. Farnir , S. J. A. J. Salmon , P. Eggenberger

Photometric time series gathered by space telescopes such as CoRoT and Kepler allow to detect solar-like oscillations in red-giant stars and to measure their global seismic constraints, which can be used to infer global stellar properties…

We have analyzed solar-like oscillations in ~1700 stars observed by the Kepler Mission, spanning from the main-sequence to the red clump. Using evolutionary models, we test asteroseismic scaling relations for the frequency of maximum power…

With current space-based missions it is now possible to obtain age-sensitive asteroseismic information for tens of thousands of red giants. This provides a promising opportunity to study the Galactic structure and evolution. We use…

Astrophysics of Galaxies · Physics 2016-05-04 Sanjib Sharma , Dennis Stello , Joss Bland-Hawthorn , Daniel Huber , Timothy R. Bedding

Asteroseismology has started to provide constraints on stellar properties that will be essential to accurately reconstruct the history of the Milky Way. Here we look at the information content in data sets representing current and future…

Solar and Stellar Astrophysics · Physics 2016-10-19 G. R. Davies , A. Miglio

We aim to detect and characterise solar-like oscillations in bright naked-eye (V<6) main-sequence (MS) and subgiant stars observed by TESS. We seek to expand the current benchmark sample of oscillators, provide accurate global asteroseismic…

Many stars exhibit stellar pulsations, favoring them for asteroseismic analyses. Interpreting the oscillations requires some knowledge of the oscillation mode geometry (spherical degree, radial and azimuthal orders). The delta Scuti stars…

Solar and Stellar Astrophysics · Physics 2011-05-06 O. L. Creevey , T. S. Metcalfe , T. M. Brown , S. Jiménez-Reyes , J. A. Belmonte