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Related papers: KIC 7955301: a hierarchical triple system with ecl…

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KIC~8262223 is an eclipsing binary with a short orbital period ($P=1.61$ d). The {\it Kepler} light curves are of Algol-type and display deep and partial eclipses, ellipsoidal variations, and pulsations of Delta Scuti type. We analyzed the…

Solar and Stellar Astrophysics · Physics 2017-03-15 Zhao Guo , Douglas R. Gies , Rachel A. Matson , Antonio García Hernández , Zhanwen Han , Xuefei Chen

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 the physical properties of KIC 5621294 showing light and timing variations from the ${\it Kepler}$ photometry. Its light curve displays partial eclipses and O'Connell effect with Max II fainter than Max I, which was fitted quite…

Solar and Stellar Astrophysics · Physics 2015-06-23 Jae Woo Lee , Kyeongsoo Hong , Tobias Cornelius Hinse

KOI-3890 is a highly eccentric, 153-day period eclipsing, single-lined spectroscopic binary system containing a red-giant star showing solar-like oscillations alongside tidal interactions. The combination of transit photometry, radial…

In cases where both components of a binary system show oscillations, asteroseismology has been proposed as a method to identify the system. For KIC 2568888, observed with $Kepler$, we detect oscillation modes for two red giants in a single…

Solar and Stellar Astrophysics · Physics 2018-12-05 N. Themeßl , S. Hekker , A. Mints , R. A. García , A. García Saravia Ortiz de Montellano , P. B. Stetson , J. De Ridder

We study the $\delta$ Scuti -- red giant binary KIC9773821, the first double-pulsator binary of its kind. It was observed by \textit{Kepler} during its four-year mission. Our aims are to ascertain whether the system is bound, rather than a…

We present an asteroseismic analysis of the Kepler light curve of KIC 8263801, a red-giant star in the open cluster NGC 6866 that has previously been reported to be a helium-burning red-clump star. We extracted the frequencies of the radial…

Solar and Stellar Astrophysics · Physics 2018-10-31 Yanke Tang , Sarbani Basu , Guy R. Davies , Earl P. Bellinger , Ning Gai

The Kepler spacecraft has been monitoring the light from 150,000 stars in its primary quest to detect transiting exoplanets. Here we report on the detection of an eclipsing stellar hierarchical triple, identified in the Kepler photometry.…

We present and analyze long-term optical photometric measurements of the three active stars V2253 Oph, IT Com and IS Vir. All three systems are single-lined spectroscopic binaries with an early K giant as primary component but in different…

Solar and Stellar Astrophysics · Physics 2015-06-12 K. Oláh , A. Moór , K. G. Strassmeier , T. Borkovits , T. Granzer

The evolved main-sequence Sun-like stars KIC 10273246 (F-type) and KIC 10920273 (G-type) were observed with the NASA Kepler satellite for approximately ten months with a duty cycle in excess of 90%. Such continuous and long observations are…

The present paper focuses on the eclipsing binary KIC 8553788 which belongs to two different types of binary systems regarding its physical properties. In particular, it is one of the 71 oscillating stars of Algol type that have been…

Solar and Stellar Astrophysics · Physics 2018-09-05 Alexios Liakos

We present an asteroseismic study of the solar-like stars KIC 11395018, KIC 10273246, KIC 10920273, KIC 10339342, and KIC 11234888 using short-cadence time series of more than eight months from the Kepler satellite. For four of these stars,…

Binaries in which both stars are pulsating are rare but extremely valuable. We present the first study of an asteroseismic binary system consisting of a core helium-burning red clump (RC) star and a red giant branch (RGB) star. The Kepler…

We present the results of analysis and modelling of the eclipsing binary system, KIC 10661783. The Fourier analysis of the Kepler light curve, corrected for the binary effects, reveals 750 frequency peaks in both p and g-mode regions. Those…

Solar and Stellar Astrophysics · Physics 2020-02-03 Amadeusz Miszuda , Wojciech Szewczuk , Jadwiga Daszyńska-Daszkiewicz

We perform a detailed asteroseismic analysis of four red giants observed by Kepler: KIC 9145955, KIC 9970396, KIC 9882316, and KIC 11968334. Our study is based on individual oscillation frequencies, with particular emphasis on…

Solar and Stellar Astrophysics · Physics 2026-04-21 Xinyi Zhang , Tanda Li , Jianxing Chen , Xinghao Chen , Gang Li , Chunqian Li , Shaolan Bi

Very metal-poor stars ([Fe/H]<-2) are important laboratories for testing stellar models and reconstructing the formation history of our galaxy. Asteroseismology is a powerful tool to probe stellar interiors and measure ages, but few…

Despite more than 20 years since the discovery of the first gas giant planet with an anomalously large radius, the mechanism for planet inflation remains unknown. Here, we report the discovery of EPIC228754001.01, an inflated gas giant…

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 systems, we can combine two independent…

Determining fundamental properties of stars through stellar modeling has improved substantially due to recent advances in asteroseismology. Thanks to the unprecedented data quality obtained by space missions, particularly CoRoT and Kepler,…

Clear power excess in a frequency range typical for solar-type oscillations in red giants has been detected in more than 1000 stars, which have been observed during the first 138 days of the science operation of the NASA Kepler satellite.…

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