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We present an early result from an automated search of Kepler eclipsing binary systems for circumbinary companions. An intriguing tertiary signal has been discovered in the short period eclipsing binary KIC002856960. This third body leads…

Earth and Planetary Astrophysics · Physics 2015-06-11 D. Armstrong , D. Pollacco , C. A. Watson , F. Faedi , Y. Gómez Maqueo Chew , H. M. Cegla , P. McDaid , J. Burton , J. McCormac , I. Skillen

We present optical spectroscopy and extensive $RI$ differential photometry of the double-lined eclipsing binary NSVS 02502726 (2MASS J08441103+5423473). Simultaneous solution of two-band light curves and radial velocities permits…

Solar and Stellar Astrophysics · Physics 2009-11-13 O. Cakirli , C. Ibanoglu , C. Gungor

Mass, radius, and age are three of the most fundamental parameters for celestial objects, enabling studies of the evolution and internal physics of stars, brown dwarfs, and planets. Brown dwarfs are hydrogen-rich objects that are unable to…

We have developed a procedure for the classification of eclipsing binaries from their light-curve parameters and spectral type. The procedure was tested on more than 1000 systems with known classification, and its efficiency was estimated…

Solar and Stellar Astrophysics · Physics 2014-09-09 Ekaterina Avvakumova , Oleg Malkov

We report the discovery of an eclipsing binary star (KIC 7025851) near KOI 565 (KIC 7025846) based on photometric observations of KOI 565 and several nearby stars acquired in two narrow bandpasses (790.2 and 794.3\pm2.0 nm)…

Earth and Planetary Astrophysics · Physics 2015-05-30 Knicole D. Colon , Eric B. Ford

Eclipsing binaries provide a unique opportunity to determine fundamental stellar properties. In the era of wide-field cameras and all-sky imaging surveys, thousands of eclipsing binaries have been reported through light curve…

Solar and Stellar Astrophysics · Physics 2017-02-22 Chien-Hsiu Lee , Chien-Cheng Lin

KIC 7955301 is a hierarchical triple system with eclipse timing and depth variations discovered by the Kepler mission. It is composed of a non-eclipsing primary star at the bottom of the red giant branch on a 209-day orbit with a K/G-type…

We present the absolute properties of the double-lined eclipsing binary KIC 6206751 exhibiting multiperiodic pulsations. The ${\it Kepler}$ light curve of this system was simultaneously solved with the radial-velocity data given by Matson…

Solar and Stellar Astrophysics · Physics 2018-08-15 Jae Woo Lee , Jang-Ho Park

The Kepler Observatory offers unprecedented photometric precision (<1 mmag) and cadence for monitoring the central stars of planetary nebulae, allowing the detection of tiny periodic light curve variations, a possible signature of binarity.…

Solar and Stellar Astrophysics · Physics 2015-05-30 D. Douchin , G. H. Jacoby , O. De Marco , S. B. Howell , M. Kronberger

We present the analysis of an eccentric, partially eclipsing long-period ($P=19.23$ d) binary system KIC 9777062 that contains main sequence stars near the turnoff of the intermediate age open cluster NGC 6811. The primary is a metal-lined…

Binary systems, in particular eclipsing binaries, are essential sources of our knowledge of the fundamental properties of stars. The ages of binaries, members of open clusters, are constrained by their own fundamental properties and by…

Solar and Stellar Astrophysics · Physics 2015-05-20 Mutlu Yildiz

KX Cancri is an eclipsing binary containing two G-type stars with an orbital period of 31.2 d and an eccentricity of 0.47. These qualities make it a promising candidate for a benchmark solar-type binary system. We analyse the first light…

Solar and Stellar Astrophysics · Physics 2020-12-22 John Southworth

In this paper, we report the evidence for a planetary mass body orbiting the close binary star KIC 5095269. This detection arose from a search for eclipse timing variations among the more than 2,000 eclipsing binaries observed by Kepler.…

Earth and Planetary Astrophysics · Physics 2017-05-03 A. K. Getley , B. Carter , R. King , S. O'Toole

Binary star systems are important for understanding stellar structure and evolution, and are especially useful when oscillations can be detected and analysed with asteroseismology. However, only four systems are known in which solar-like…

The present work contains light curve, spectroscopic and asteroseismic analyses for KIC 04851217 and KIC 10686876. These systems are detached eclipsing binaries hosting a pulsating component of delta Scuti type and have been observed with…

Solar and Stellar Astrophysics · Physics 2020-10-14 Alexios Liakos

The observations of eclipsing binary systems are of great importance in astrophysics, as they allow direct measurements of fundamental stellar parameters. By analysing high-quality space-based observations with ground-based photometric…

Solar and Stellar Astrophysics · Physics 2025-01-23 N. Alan , F. Alicavus , M. Alpsoy

Stellar evolution models of B-type stars are still uncertain in terms of internal mixing properties, notably in the area between the convective core and the radiative envelope. This impacts age determination of such stars in addition to the…

Solar and Stellar Astrophysics · Physics 2023-09-26 Mathias Michielsen , Timothy Van Reeth , Andrew Tkachenko , Conny Aerts

We present an automated classification of 2165 \textit{Kepler} eclipsing binary (EB) light curves that accompanied the second \textit{Kepler} data release. The light curves are classified using Locally Linear Embedding, a general nonlinear…

Solar and Stellar Astrophysics · Physics 2015-06-04 Gal Matijevic , Andrej Prsa , Jerome A. Orosz , William F. Welsh , Steven Bloemen , Thomas Barclay

Light curves of the eclipsing binary FL Lyr acquired by the Kepler space telescope are analyzed. Eclipse timing measurements for FL Lyr testify to the presence of a third body in the system. Preliminary estimates of its mass and orbital…

Solar and Stellar Astrophysics · Physics 2015-12-09 V. S. Kozyreva , A. I. Bogomazov , B. P. Demkov , L. V. Zotov , A. V. Tutukov

The asteroseismic and planetary studies, like all research related to stars, need precise and accurate stellar atmospheric parameters as input. We aim at deriving the effective temperature (Teff), the surface gravity (log g), the…

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