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We carried out light curve solutions of two eclipsing detached binaries on eccentric orbits observed by Kepler. The orbits and fundamental parameters of KIC 11619964 and KIC 7118545 were determined with a high accuracy by modeling of their…

Solar and Stellar Astrophysics · Physics 2015-07-23 Diana Kjurkchieva , Doroteya Vasileva

We propose that KIC 1573174 is a quadruple-mode $\delta$ Scuti star with pulsation amplitudes between those of the HADS (high-amplitude Delta Scuti star) group and average low-amplitude pulsators. The radial modes detected in this star…

Solar and Stellar Astrophysics · Physics 2022-06-22 Chenglong Lv , Ali Esamdin , Javier Pascual-Granado , Taozhi Yang , Dongxiang Shen

KIC 4247791 is an eclipsing binary observed by the Kepler satellite mission. We wish to determine the nature of its components and in particular the origin of a shallow dip in its Kepler light curve that previous investigations have been…

Solar and Stellar Astrophysics · Physics 2012-03-06 H. Lehmann , M. Zechmeister , S. Dreizler , S. Schuh , R. Kanzler

We investigated the pulsating behavior of KIC 10855535 using Kepler 4-year long cadence data. Two independent frequencies were detected: a pulsation frequency F0 = 17.733260(5)d-1 and a low frequency f8=0.412643(8)d-1 We identify F0 as the…

Solar and Stellar Astrophysics · Physics 2024-11-05 Lixian Shen , Ali Esamdin , Chenglong Lv , Haozhi Wang , Taozhi Yang , Rivkat Karimov , Shuhrat A. Ehgamberdiev , Hubiao Niu , Jinzhong Liu

The eccentricity, periastron angle, orbital inclination, mass ratio, stellar temperatures and relative stellar radii of 12 eclipsing eccentric binaries were determined on the basis of Kepler data. The analysis of their out-of-eclipse…

Solar and Stellar Astrophysics · Physics 2016-12-28 Diana Kjurkchieva , Doroteya Vasileva , Dinko Dimitrov

We present the physical properties of EPIC 245932119 ($K_{\rm p}$ = $+$9.82) exhibiting both eclipses and pulsations from the {\it K{\rm 2}} photometry. The binary modeling indicates that the eclipsing system is in detached or semi-detached…

Solar and Stellar Astrophysics · Physics 2018-12-26 Jae Woo Lee , Kyeongsoo Hong , Martti H. Kristiansen

Eclipsing double-lined spectroscopic binaries hosting $\delta$ Scuti-type pulsators offer a unique laboratory for simultaneously constraining stellar geometry and interior structure. In this study, we present a comprehensive analysis of…

Solar and Stellar Astrophysics · Physics 2026-01-28 T. B. Pawar , A. Miszuda , K. G. Hełminiak , F. Marcadon , A. Moharana , G. Pawar , M. Konacki

Aims. We aim to find more eclipsing multiple systems and obtain their parameters, thus increasing our understanding of multiple systems. Methods. The extraneous eclipses on the \textit{kepler} binary light curves indicating extraneous…

Solar and Stellar Astrophysics · Physics 2018-03-28 J. Zhang , S. B. Qian , S. M. Wang , L. L. Sun , Y. Wu , L. Q. Jiang

The presence of pulsating stars in eclipsing binary systems (EBs) makes these objects significant since they allow us to investigate the stellar interior structure and evolution. Different types of pulsating stars could be found in EBs such…

Solar and Stellar Astrophysics · Physics 2023-08-02 F. Kahraman Alicavus , G. C. Coban , E. Celik , D. S. Dogan , O. Ekinci , F. Alicavus

A study of the star KIC5892969 observed by the Kepler satellite is presented. Its three highest amplitude modes present a strong amplitude modulation. The aim of this work is to investigate amplitude variations in this star and their…

Solar and Stellar Astrophysics · Physics 2015-07-22 S. Barceló Forteza , E. Michel , T. Roca Cortés , R. A. García

KIC 9532219 is a W UMa-type eclipsing binary with an orbital period of 0.1981549 d that is below the short-period limit ($\sim$0.22 d) of the period distribution for contact binaries. The {\it Kepler} light curve of the system exhibits…

Solar and Stellar Astrophysics · Physics 2016-03-23 Jae Woo Lee , Kyeongsoo Hong , Jae-Rim Koo , Jang-Ho Park

Pulsating detached eclipsing binary systems are crucial for studying the internal structure of oscillating stars. These systems are advantageous because binary effects on pulsations are minimal, allowing for more accurate determinations of…

Solar and Stellar Astrophysics · Physics 2025-08-21 Filiz Kahraman Aliçavuş , Fahri Aliçavuş , Zeynep Çelik Orhan , Eda Çelik , Giovanni Catanzaro , Marina Giarrusso

Abstract We investigate a short-period W UMa binary KIC 9026766 with an orbital period of 0.2721278 days in the Kepler field of view. By using an automated q-search for the folded light curve and producing a synthetic light curve for this…

Solar and Stellar Astrophysics · Physics 2022-01-05 Somaye Soomandar , Abbas Abedi

New BVRI light curves of the system V1464 Aql (ellipsoidal variable with a delta Scuti component) were obtained. Using these observations and taking into account previous studies of the system, its light curve model was reproduced and the…

Solar and Stellar Astrophysics · Physics 2014-04-14 Alexios Liakos , Panagiotis Niarchos

We present the results of our analysis of KIC 4150611 (HD 181469) - an interesting, bright quintuple system that includes a hybrid $\delta$ Sct/$\gamma$ Dor pulsator. Four periods of eclipses - 94.2, 8.65, 1.52 and 1.43 d - have been…

Solar and Stellar Astrophysics · Physics 2017-05-31 K. G. Hełminiak , N. Ukita , E. Kambe , S. K. Kozłowski , R. Pawłaszek , H. Maehara , C. Baranec , M. Konacki

Since CoRoT observations unveiled the very low amplitude modes that form a flat plateau in the power spectrum structure of delta Scuti stars, the nature of this phenomenon, including the possibility of spurious signals due to the light…

Solar and Stellar Astrophysics · Physics 2017-05-03 S. Barceló Forteza , T. Roca Cortés , A. García Hernandez , R. A. García

We carried out light curve solutions of ten detached eclipsing eccentric binaries observed by Kepler. The formal errors of the derived parameters from the light curve solutions are below 1%. Our results give indications that the components…

Solar and Stellar Astrophysics · Physics 2016-05-25 D. Kjurkchieva , D. Vasileva

We present the characterization of KIC 4142768, an eclipsing binary with two evolved A-type stars in an eccentric orbit with a period of 14 days. We measure the fundamental parameters of the two components ($M_1=2.05M_{\odot},…

Solar and Stellar Astrophysics · Physics 2020-01-08 Zhao Guo , Jim Fuller , Avi Shporer , Gang Li , Kelly Hambleton , Joseph Manuel , Simon Murphy , Howard Isaacson

KIC 10417986 is a short orbital period (0.0737 d) ellipsoidal variable star with a {\delta} Scuti and {\gamma} Doradus hybrid pulsations component discovered by Kepler. The ground-based spectroscopic observations were carried out in the…

Solar and Stellar Astrophysics · Physics 2022-10-05 Guo-Jie Feng , Ali Esamdin , Jian-Ning Fu , Hu-Biao Niu , Peng Zong , Tao-Zhi Yang , Shu-Guo Ma , Jing Xu , Chun-Hai Bai , Yong Wang , Wei-Chao Sun , Xin-Liang Wang

Many stars exhibit stellar pulsations, favoring them for asteroseismic analyses. Interpreting the oscillations requires some knowledge of the oscillation mode geometry (spherical degree, radial and azimuthal orders). The delta Scuti stars…

Solar and Stellar Astrophysics · Physics 2011-05-06 O. L. Creevey , T. S. Metcalfe , T. M. Brown , S. Jiménez-Reyes , J. A. Belmonte