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In addition to comprehensive surveys of the Milky Way bulge, disk, and halo, the Apache Point Galactic Evolution Experiment (APOGEE) project observed seven dwarf spheroidal satellites (dSphs) of the Milky Way: Carina, Sextans, Sculptor,…

Eclipsing binary stars with an oscillating giant component allow accurate stellar parameters to be derived and asteroseismic methods to be tested and calibrated. To this aim, suitable systems need to be firstly identified and secondly…

With the wealth of information from large surveys and observational campaigns in the contemporary era, it is critical to properly exploit the data to constrain the parameters of Galactic chemical evolution models and quantify the associated…

Astrophysics of Galaxies · Physics 2020-03-11 E. Spitoni , K. Verma , V. Silva Aguirre , F. Calura

The KEYSTONE project aims to enhance our understanding of solar-like oscillators by delivering a catalogue of global asteroseismic parameters (${\Delta\nu}$ and ${\nu_{\rm max}}$) for 173 stars, comprising mainly dwarfs and subgiants,…

Context. Understanding the Milky Way's formation and evolution across cosmic epochs necessitates precise stellar age determination across all Galactic components. Recent advancements in asteroseismology, spectroscopy, stellar modelling, and…

Astrophysics of Galaxies · Physics 2024-04-01 Thibault Boulet

The Sloan Digital Sky Survey III/Apache Point Observatory Galactic Evolution Experiment (SDSS-III/APOGEE) is a large-scale spectroscopic survey of Galactic stars and star clusters. The SDSS-III/APOGEE survey is designed to produce high-S/N,…

We present a set of 87 RAVE stars with detected solar like oscillations, observed during Campaign 1 of the K2 mission (RAVE K2-C1 sample). This dataset provides a useful benchmark for testing the gravities provided in RAVE Data Release 4…

The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) project performed its five year formal survey since Sep. 2012, already fulfilled the pilot survey and the 1st two years general survey with an output - spectroscopic…

Instrumentation and Methods for Astrophysics · Physics 2014-07-09 Yue Wu , Ali Luo , Bing Du , Yongheng Zhao , Hailong Yuan

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

The determination of exoplanet properties and occurrence rates using Kepler data critically depends on our knowledge of the fundamental properties (such as temperature, radius and mass) of the observed stars. We present revised stellar…

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…

Solar and Stellar Astrophysics · Physics 2016-08-17 S. Mathur , R. A. Garcia , D. Huber , C. Regulo , D. Stello , P. G. Beck , K. Houmani , D. Salabert

Aims. To produce an homogeneous catalog of astrophysical parameters of 239 resolved star clusters located in the Small and Large Magellanic Clouds, observed in the Washington photometric system. Methods. The cluster sample was processed…

Astrophysics of Galaxies · Physics 2017-06-21 Gabriel I. Perren , Andrés E. Piatti , Rubén A. Vázquez

We report on the properties of eclipsing binaries from the Kepler mission with a newly developed photometric modeling code, which uses the light curve, spectral energy distribution of each binary, and stellar evolution models to infer…

Solar and Stellar Astrophysics · Physics 2019-08-14 Diana Windemuth , Eric Agol , Aleezah Ali , Flavien Kiefer

The feasibility of using data from the NASA STEREO mission for variable star and asteroseismology studies has been examined. A data analysis pipeline has been developed that is able to apply selected algorithms to the entire database of…

Solar and Stellar Astrophysics · Physics 2015-05-27 K. T. Wraight , Glenn J. White , D. Bewsher , A. J. Norton

Current stellar model predictions of adiabatic oscillation frequencies differ significantly from the corresponding observed frequencies due to the non-adiabatic and poorly understood near-surface layers of stars. However, certain…

Solar and Stellar Astrophysics · Physics 2022-07-20 Kuldeep Verma , Jakob L. Rørsted , Aldo M. Serenelli , Víctor Aguirre Børsen-Koch , Mark L. Winther , Amalie Stokholm

We present stellar properties (mass, age, radius, distances) of 57 stars from a seismic inference using full-length data sets from Kepler. These stars comprise active stars, planet-hosts, solar-analogs, and binary systems. We validate the…

Asteroseismology involves probing the interiors of stars and quantifying their global properties, such as radius and age, through observationsof normal modes of oscillation. The technical requirements for conducting asteroseismology include…

Asteroseismic scaling relations can provide high-precision measurements of mass and radius for red giant (RG) stars displaying solar-like oscillations. Their accuracy can be validated and potentially improved using independent and accurate…

Stellar spectroscopy provides useful information on the physical properties of stars such as effective temperature, metallicity and surface gravity (log g). However, those photospheric characteristics are often hampered by systematic…

Solar and Stellar Astrophysics · Physics 2016-12-16 Thomas Masseron , Keith Hawkins