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相关论文: Determination of tidal distortion in the eclipsing…

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KIC 10661783 is an eclipsing binary that shows Delta Sct-like oscillations. More than 60 pulsation frequencies have been detected in its light curve as observed by the Kepler satellite. We want to determine the fundamental stellar and…

太阳与恒星天体物理 · 物理学 2013-08-20 H. Lehmann , J. Southworth , A. Tkachenko , K. Pavlovski

Context. Thanks to the high-precision photometry from space missions such as Kepler and TESS, tidal perturbations and tilting of pulsations have been detected in more than a dozen binary systems. However, only two of these were g-mode…

太阳与恒星天体物理 · 物理学 2023-03-15 T. Van Reeth , C. Johnston , J. Southworth , J. Fuller , D. M. Bowman , L. Poniatowski , J. Van Beeck

Eclipsing binary systems with a Delta (${\delta}$) Scuti component serve a vital role in deriving precise fundamental stellar parameters and testing stellar evolution models. This study mainly focuses on the Kepler target KIC 8569819, a…

太阳与恒星天体物理 · 物理学 2026-03-24 Dinesha Dharmathilaka , Janaka Adassuriya , Chandana Jayaratne , Jordi Gutiérrez

The paper presents a sample of newly detected eclipsing binaries from the public Kepler data. Orbits and fundamental parameters of 20 unknown eclipsing binaries were determined by modeling of their photometric data. Most of them are…

太阳与恒星天体物理 · 物理学 2012-07-03 Dinko P. Dimitrov , Diana P. Kjurkchieva , Veselka S. Radeva

We report the discovery of a transiting, Rp = 4.347+/-0.099REarth, circumbinary planet (CBP) orbiting the Kepler K+M Eclipsing Binary (EB) system KIC 12351927 (Kepler-413) every ~66 days on an eccentric orbit with ap = 0.355+/-0.002AU, ep =…

KIC 8560861 (HD 183648) is a marginally eccentric (e=0.05) eclipsing binary with an orbital period of P_orb=31.973d, exhibiting mmag amplitude pulsations on time scales of a few days. We present the results of the complex analysis of high…

By cross-matching the eclipsing binary catalog from TESS with that from LAMOST MRS, semi-detached eclipsing binaries with radial velocities coverage spanning more than 0.3 phases were authenticated. The absolute parameters for these systems…

太阳与恒星天体物理 · 物理学 2024-12-11 Yajuan Lei , Guiping Zhou , Liang Wang , Guangwei Li , Kai Li , Tuan Yi

The aim of this work is to develop a formalism for the study of the secular evolution of a binary system which includes interaction due to the tides that each body imparts on the other. We also consider the influence of the $J_2$-related…

地球与行星天体物理 · 物理学 2020-09-16 Santiago Luna , Hugo Navone , Mario Melita

We re-analyze the pristine eclipsing binary data from the $\textit{Kepler}$ and TESS missions, focusing on eccentricity measurements at short orbital periods to emperically constrain tidal circularization. We find an average circularization…

太阳与恒星天体物理 · 物理学 2022-05-04 J. J. Zanazzi

We present the results of a high-resolution spectroscopic monitoring program of the eclipsing pre-main-sequence star KH 15D that reveal it to be a single-line spectroscopic binary. We find that the best-fit Keplerian model has a period P =…

We present the discovery of a rare system detected in the TESS data showing three different eclipsing-like signals. TIC 452991707 and TIC 452991693 seem to be the second such system on the sky, whose two components separated about 16" are…

太阳与恒星天体物理 · 物理学 2022-09-13 P. Zasche , Z. Henzl

Thousands of tight ($<1$ AU) main sequence binaries have been discovered, but it is uncertain how they formed. There is likely too much angular momentum in a collapsing, fragmenting protostellar cloud to form such binaries in situ,…

Inaccurate limb-darkening models can be a significant source of error in the analysis of the light curves for transiting exoplanet and eclipsing binary star systems, particularly for high-precision light curves at optical wavelengths. The…

太阳与恒星天体物理 · 物理学 2018-08-15 P. F. L. Maxted

We report on extended photometry of two pulsating sdB stars in close binaries. For both cases, we use rotational splitting of the pulsation frequencies to show that the sdB component rotates much too slowly to be in synchronous rotation. We…

In 2002, 2004, and 2017 we conducted high precision CCD photometry observations of the eclipsing binary system AS~Cam. By the analysis of the light curves from 1967 to 2017 (our data + data from the literature) we obtained photometric…

太阳与恒星天体物理 · 物理学 2018-02-07 V. S. Kozyreva , A. V. Kusakin , A. I. Bogomazov

V621 Persei is a detached eclipsing binary in the open cluster chi Persei which is composed of an early B-type giant star and a main sequence secondary component. From high-resolution spectroscopic observations and radial velocities from…

天体物理学 · 物理学 2009-11-10 J. Southworth , S. Zucker , P. F. L. Maxted , B. Smalley

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…

太阳与恒星天体物理 · 物理学 2015-06-04 Gal Matijevic , Andrej Prsa , Jerome A. Orosz , William F. Welsh , Steven Bloemen , Thomas Barclay

The Kepler object KIC 12557548 shows irregular eclipsing behaviour with a constant 15.685 hr period, but strongly varying transit depth. In this paper we fit individual eclipses, in addition to fitting binned light curves, to learn more…

地球与行星天体物理 · 物理学 2013-11-25 T. I. M. van Werkhoven , M. Brogi , I. A. G. Snellen , C. U. Keller

Although triple systems are common, their orbital dynamics and stellar evolution remain poorly understood. We investigated the V1371 Tau system using TESS photometry, multi-epoch spectroscopy, and recent interferometric data, confirming it…

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…

太阳与恒星天体物理 · 物理学 2016-05-25 D. Kjurkchieva , D. Vasileva