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The Kepler satellite mission delivers single band-pass light curves of a huge number of stars observed in the Cygnus-Lyra region opening a new window for asteroseismology. In order to accomplish one of the preconditions for the…

Solar and Stellar Astrophysics · Physics 2015-06-15 A. Tkachenko , H. Lehmann , B. Smalley , K. Uytterhoeven

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

The original Kepler mission has delivered unprecedented high-quality photometry. These data have impacted numerous research fields (e.g., asteroseismology and exoplanets), and continue to be an astrophysical goldmine. Because of this,…

The Kepler Mission revolutionized exoplanet science and stellar astrophysics by obtaining highly precise photometry of over 200,000 stars over 4 years. A critical piece of information to exploit Kepler data is its selection function, since…

Solar and Stellar Astrophysics · Physics 2021-05-05 Linnea M. Wolniewicz , Travis A. Berger , Daniel Huber

The LAMOST-Kepler survey, whose spectra are analyzed in the present paper, is the first large spectroscopic project aimed at characterizing these sources. Our work is focused at selecting emission-line objects and chromospherically active…

Solar and Stellar Astrophysics · Physics 2016-10-07 A. Frasca , J. Molenda-Zakowicz , P. De Cat , G. Catanzaro , J. N. Fu , A. B. Ren , A. L. Luo , J. R. Shi , Y. Wu , H. T. Zhang

Stellar properties are measured for a large set of Kepler Mission exoplanet candidate host stars. Most of these stars are fainter than 14th magnitude, in contrast to other spectroscopic follow-up studies. This sample includes many…

Earth and Planetary Astrophysics · Physics 2015-06-15 Mark E. Everett , Steve B. Howell , David R. Silva , Paula Szkody

Kepler produces a large amount of data used for asteroseismological analyses, particularly of solar-like stars and red giants. The mode amplitudes observed in the Kepler spectral band have to be converted into bolometric amplitudes to be…

Solar and Stellar Astrophysics · Physics 2011-06-29 J. Ballot , C. Barban , C. van 't Veer-Menneret

The Kepler Mission Science Operations Center (SOC) performs several critical functions including managing the ~156,000 target stars, associated target tables, science data compression tables and parameters, as well as processing the raw…

Stellar activity contamination of radial velocity (RV) data is one of the top challenges plaguing the field of extreme precision RV (EPRV) science. Previous work has shown that photometry can be very effective at removing such signals from…

We present up-to-date metallicity-dependent temperature vs. color calibrations for main sequence and giant stars based on temperatures derived with the infrared flux method (IRFM). Seventeen colors in the following photometric systems: UBV,…

Astrophysics · Physics 2010-04-06 Ivan Ramirez , Jorge Melendez

KIC 5359678 is a 6.231-d period F-type eclipsing binary system whose component stars both show starspot activity. It was observed by the Kepler satellite in long cadence for the full four-year duration of the mission. Wang et al (2021)…

Solar and Stellar Astrophysics · Physics 2022-05-19 John Southworth

Context: Accurate fundamental parameters of stars are essential for the asteroseismic analysis of data from the NASA Kepler mission. Aims: We aim at determining accurate atmospheric parameters and the abundance pattern for a sample of 82…

Kepler and K2 data analysis reported in the literature is mostly based on aperture photometry. Because of Kepler's large, undersampled pixels and the presence of nearby sources, aperture photometry is not always the ideal way to obtain…

Solar and Stellar Astrophysics · Physics 2016-01-27 M. Libralato , L. R. Bedin , D. Nardiello , G. Piotto

The ever-growing number of large spectroscopic survey programs has increased the importance of fast and reliable methods with which to determine precise stellar parameters. Some of these methods are highly dependent on correct spectroscopic…

Solar and Stellar Astrophysics · Physics 2016-10-26 G. D. C. Teixeira , S. G. Sousa , M. Tsantaki , M. J. P. F. G. Monteiro , N. C. Santos , G. Israelian

We present new calibrations of stellar parameters of O stars at solar metallicity taking non-LTE, wind, and line-blanketing effects into account. Gravities and absolute visual magnitudes are derived from results of recent spectroscopic…

Astrophysics · Physics 2009-05-29 F. Martins , D. Schaerer , D. J. Hillier

Stellar structure and evolution can be studied in great detail by asteroseismic methods, provided data of high precision are available. We determine the effective temperature (Teff), surface gravity (log g), metallicity, and the projected…

Solar and Stellar Astrophysics · Physics 2015-05-20 Joanna Molenda-Zakowicz , David W. Latham , Giovanni Catanzaro , Antonio Frasca , Samuel N. Quinn

Classification of stars, by comparing their optical spectra to a few dozen spectral standards, has been a workhorse of observational astronomy for more than a century. Here, we extend this technique by compiling a library of optical spectra…

Solar and Stellar Astrophysics · Physics 2017-02-15 Samuel W. Yee , Erik A. Petigura , Kaspar von Braun

We present the construction of a deep multi-wavelength PSF-matched photometric catalog in the UDS field following the final UKIDSS UDS DR11 release. The catalog includes photometry in 24 filters, from the MegaCam-uS (0.38 microns) band to…

We apply a PCA-based pre-whitening method to the entire collection of main Kepler mission long-cadence data for KIC 8462852 spanning four years. This technique removes the correlated variations of instrumental origin in both the detected…

Solar and Stellar Astrophysics · Physics 2016-12-28 Valeri V Makarov , Alexey Goldin