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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 report the detection of a very low mass star (VLMS) companion to the primary star 1SWASPJ234318.41+295556.5A (J2343+29A), using radial velocity (RV) measurements from the PARAS (PRL Advanced Radial-velocity Abu-sky Search) high…

Solar and Stellar Astrophysics · Physics 2016-07-13 Priyanka Chaturvedi , Abhijit Chakraborty , B. G. Anandarao , Arpita Roy , Suvrath Mahadevan

We have discovered a new, near-equal mass, eclipsing M dwarf binary from the Next Generation Transit Survey. This system is only one of 3 field age ($>$ 1 Gyr), late M dwarf eclipsing binaries known, and has a period of 1.74774 days,…

49 new eclipsing twin binary candidates are identified and analyzed based on Kepler eclipsing binary light curves. Their colours and spectral types are calculated according to our classification. A comparison of the spectral type…

Solar and Stellar Astrophysics · Physics 2022-05-25 Gökhan Yücel , Volkan Bakış

Binaries with a white dwarf primary and a main sequence secondary can be used to test our understanding of both single and binary star evolution. A small fraction of such systems experienced a common-envelope phase from which they emerged…

Solar and Stellar Astrophysics · Physics 2022-08-08 R. Priyatikanto , C. Knigge , S. Scaringi , J. Brink , D. A. H. Buckley

We report follow-up spectroscopic observations of the 1.62 day, K-type, detached, active, near-circular, double-lined eclipsing binary EPIC 219511354 in the open cluster Ruprecht 147, identified previously on the basis of photometric…

Solar and Stellar Astrophysics · Physics 2021-11-17 Guillermo Torres , Andrew Vanderburg , Jason L. Curtis , Adam L. Kraus , Eric Gaidos

In a recent study, Armstrong et al. presented an eclipsing binary star of about 6.2 h period with transit-like tertiary signals occurring every 204.2 d in the {\it Kepler} public data of KIC002856960 and proposed three possible hierarchical…

Solar and Stellar Astrophysics · Physics 2015-06-12 Jae Woo Lee , Seung-Lee Kim , Chung-Uk Lee , Byeong-Cheol Lee , Byeong-Gon Park , Tobias Cornelius Hinse

Times of minima of eclipsing binary KIC 7023917 show quasiperiodic anti-symmetric deviations from the calculated one with an amplitude of up to 10 minutes and a period of 200 - 300 days. These changes correlate with the observed variations…

Solar and Stellar Astrophysics · Physics 2024-09-24 Pavol Gajdoš , Štefan Parimucha , Marek Skarka , Matúš Kamenec , Jozef Lipták , Raine Karjalainen

Photometric observations in the R and I bands of the detached M-type double-lined eclipsing binary CU Cnc have been acquired and analysed. The photometric elements obtained from the analysis of the light curves have been combined with an…

Astrophysics · Physics 2009-11-07 I. Ribas

We report on the properties of eclipsing binaries from the Kepler mission with a newly developed photometric modeling code, which uses the light curve, spectral energy distribution of each binary, and stellar evolution models to infer…

Solar and Stellar Astrophysics · Physics 2019-08-14 Diana Windemuth , Eric Agol , Aleezah Ali , Flavien Kiefer

Many short-period binary stars have distant orbiting companions that have played a role in driving the binary components into close separation. Indirect detection of a tertiary star is possible by measuring apparent changes in eclipse times…

Solar and Stellar Astrophysics · Physics 2015-10-08 D. R. Gies , R. A. Matson , Z. Guo , K. V. Lester , J. A. Orosz , G. J. Peters

Using high-precision photometric data from TESS, medium resolution spectroscopic data from LAMOST, and long-term eclipse timings, we provide orbital parameters for two early-type detached eclipsing binary systems: TYC 3740-2072-1 and TYC…

Solar and Stellar Astrophysics · Physics 2025-05-28 Peng-Fei Ye , Kai Li , Fei Liu , Xiang Gao , Jing-Yi Wang

The eclipsing and double-lined spectroscopic binary V380 Cyg is an extremely important probe of stellar evolution: its primary component is a high-mass star at the brink of leaving the main sequence whereas the secondary star is still in…

Solar and Stellar Astrophysics · Physics 2015-05-13 K. Pavlovski , E. Tamajo , P. Koubsky , J. Southworth , S. Yang , V. Kolbas

Eclipsing binary systems play a vital role in astrophysics, as they provide a direct means of measuring fundamental stellar parameters. By combining high-precision space-based observations with ground-based multicolor photometric data,…

Solar and Stellar Astrophysics · Physics 2025-06-12 N. Alan , M. Alpsoy , Y. Kilic

Context. Many well-known bright stars have been observed by the ongoing Transiting Exoplanet Survey Satellite (TESS) space mission. For several of them, these new data reveal previously unobserved variability, such as tidally perturbed…

Solar and Stellar Astrophysics · Physics 2022-04-06 T. Van Reeth , J. Southworth , J. Van Beeck , D. M. Bowman

KIC 3230227 is a short period ($P\approx 7.0$ days) eclipsing binary with a very eccentric orbit ($e=0.6$). From combined analysis of radial velocities and {\it Kepler} light curves, this system is found to be composed of two A-type stars,…

Solar and Stellar Astrophysics · Physics 2017-01-11 Zhao Guo , Douglas R. Gies , Jim Fuller

We present photodynamical models of four eclipsing binary systems that are members of higher-order multiple systems. We provide some radial velocities measurements and use recent TESS data for three of the systems. KIC 7668648 consists of…

Solar and Stellar Astrophysics · Physics 2023-12-12 Jerome A. Orosz

We present the results of our spectroscopic observations of eight detached eclipsing binaries (DEBs), selected from the $Kepler$ Eclipsing Binary Catalog. Radial velocities (RVs) were calculated from high resolution spectra obtained with…

Solar and Stellar Astrophysics · Physics 2017-04-19 K. G. Hełminiak , N. Ukita , E. Kambe , S. K. Kozłowski , P. Sybilski , H. Maehara , M. Konacki , R. K. Pawłaszek

The Kepler light curve of DF Cyg is unparalleled in precision and cadence for any RV Tau star to date spanning a baseline of $\sim$4 years and clearly displaying the signature pulsating behavior of alternating deep and shallow minima as…

Solar and Stellar Astrophysics · Physics 2017-04-17 Laura D. Vega , Keivan G. Stassun , Rodolfo Montez , Patricia T. Boyd , Garrett Somers