CoRoT 102918586: a γ Doradus pulsator in a short-period eccentric eclipsing binary

  title={CoRoT 102918586: a $\gamma$ Doradus pulsator in a short-period eccentric eclipsing binary},
  author={Carla Maceroni and Josefina Montalb{\'a}n and Davide Gandolfi and Kre{\vs}imir Pavlovski and Monica Rainer},
  journal={Astronomy and Astrophysics},
Pulsating stars in eclipsing binary systems are powerful to ols to test stellar models. Binarity enables to constrain th e pulsating component physical parameters, whose knowledge drastically improves the input physics for asteroseismic studies. The st udy of stellar oscillations allows us, in its turn, to improve our understa nding of stellar interiors and evolution. The space mission CoRoT discovered several promising objects suitable for these studies, which have been photometrically… 

New Pulsating Stars Detected in EA-type Eclipsing-binary Systems Based on TESS Data

Pulsating stars in eclipsing binaries are very important for understanding the structure of stellar interiors through asteroseismology because their absolute parameters such as their masses and

KIC 3858884: a hybrid δ Scuti pulsator in a highly eccentric eclipsing binary

The analysis of eclipsing binaries containing non-radial pulsators allows: i) to combine two different and independent sources of information on the internal structure and evolutionary sta tus of the

Detection of a large sample of γ Doradus stars from Kepler space photometry and high-resolution ground-based spectroscopy

The space-missions MOST, CoRoT, and Kepler deliver a huge amount of high-quality photometric data suitable to study numerous pulsating stars. Our ultimate goal is a detection and analysis of an


KIC 9851944 is a short-period (P = 2.16 days) eclipsing binary in the Kepler field of view. By combining the analysis of Kepler photometry and phase-resolved spectra from Kitt Peak National


We have deduced a theoretical relation between the pulsation and orbital-periods of pulsating stars in close binaries based on their Roche lobe filling. It appears to be of a simple linear form, with

HIDES spectroscopy of bright detached eclipsing binaries from theKeplerfield – III. Spectral analysis, updated parameters and new systems

We present the latest results of our spectroscopic observations and refined modelling of a sample of detached eclipsing binaries (DEBs), selected from the $Kepler$} Eclipsing Binary Catalog, that are

KIC 10080943: An eccentric binary system containing two pressure- and gravity-mode hybrid pulsators

Gamma Doradus and delta Scuti pulsators cover the transition region between low mass and massive main-sequence stars, and as such, are critical for testing stellar models. When they reside in binary

Space-Based Photometry of Binary Stars: From Voyager to TESS

Binary stars are crucial laboratories for stellar physics, so have been photometric targets for space missions beginning with the very first orbiting telescope (OAO-2) launched in 1968. This review

KIC 6048106: An Algol-type Eclipsing System with Long-term Magnetic Activity and Hybrid Pulsations. I. Binary modelling

The A/F-type stars and pulsators ($\delta$ Scuti-$\gamma$ Dor) are in a critical regime where they experience the transition from radiative to convective transport of energy in their envelopes. Such



HD 174884: a strongly eccentric, short-period early-type binary system discovered by CoRoT

Accurate photometric CoRoT space observations of a secondary seismological target, HD 174884, led to the discovery that this star is an astrophysically important double-lined eclipsing spectroscopic

Spectrum analysis of bright Kepler γ Doradus candidate stars

Ground-based spectroscopic follow-up observations of the pulsating stars observed by the Kepler satellite mission are needed for their asteroseismic modelling. We aim to derive the fundamental

A spectroscopic study of southern (candidate) gamma Doradus stars. II. Detailed abundance analysis and fundamental parameters

Context. The γ Doradus stars are a recent class of variable main sequence F-type stars located on the red edge of the Cepheid instability strip. They pulsate in gravity modes, and this makes them

A new eclipsing binary system with a pulsating component detected by CoRoT

We report the discovery of CoRoT 102980178 (R.A.= 06:50:12.10, Dec.= -02:41:21.8, J2000) an Algol-type eclipsing binary system with a pulsating component (oEA). It was identified using a publicly

Photometry and Spectroscopy of 11 γ Doradus Stars

We have used precise photometric and high-dispersion spectroscopic observations to study 11 γ Doradus stars, 10 of them newly confirmed. Only five of these 11 γ Doradus stars appear to be single; two


The photometric data for a short-period (0.1984 day) eclipsing binary V38 discovered by the OGLE microlensing team in Baade's Window field BW3 have been analyzed. The light-curve synthesis solution

Absolute dimensions of eclipsing binaries. XXVI.. Setting a new standard: Masses, radii, and abundan

Context. Accurate mass, radius, and abundance determinations from binaries provide important information on stellar evolution, fundamental to central fields in modern astrophysics and cosmology.

Absolute dimensions of detached eclipsing binaries – I. The metallic‐lined system WW Aurigae

WWAurigae is a detached eclipsing binary composed of two metallic-lined A-type stars orbiting each other every 2.5 days. We have determined the masses and radii of both components to accuracies of

The domain of γ Doradus variables in the Hertzsprung-Russell diagram

70 new γ Doradus candidates were identified from Hipparcos photometry, which represents more than a doubling of the presently known number. Selecting the objects with good evidence for

Chemical evolution of high-mass stars in close binaries – I. The eclipsing binary V453 Cygni

The eclipsing and double-lined spectroscopic binary system V453 Cygni consists of two early B-type stars, one of which is nearing the terminal age main sequence and one which is roughly halfway