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Related papers: $\beta$ Cephei Pulsations in the High-mass Eclipsi…

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We present a comprehensive analysis of five eclipsing binary systems containing $\beta$ Cephei-type pulsating components. These systems were identified using the high-precision Transiting Exoplanet Survey Satellite (TESS) photometry and…

Solar and Stellar Astrophysics · Physics 2025-09-24 O. Cakirli , B. Hoyman , O. Ozdarcan , S. Bilir

The combined strength of asteroseismology and empirical stellar basic parameter determinations for in-depth asteroseismic analysis of massive pulsators in eclipsing binaries shows great potential for treating the challenging and mysterious…

Solar and Stellar Astrophysics · Physics 2024-03-20 Christian I. Eze , Gerald Handler

$\beta$ Cep stars in eclipsing binary (EB) systems give us an opportunity to put observational constraints on their structure and stellar parameters. We present a comprehensive analysis of the $\beta$ Cep star in the EB V446 Cep, using…

Solar and Stellar Astrophysics · Physics 2026-05-08 A. Moharana , J. Southworth , K. Pavlovski , A. Miszuda , R. S. Rathour , K. G. Hełminiak , F. Marcadon , D. M. Bowman , T. B. Pawar , A. Tkachenko

Pulsations and binarity are both common features of massive stars. The study of pulsating massive stars in eclipsing binary systems hold great potential for constraining stellar structure and evolution theory. However, prior to the all-sky…

Solar and Stellar Astrophysics · Physics 2022-04-13 John Southworth , Dominic M. Bowman

Asteroseismology coupled with eclipsing binary modelling shows a great potential in improving the efficiency of measurements or calibrations of the interior mixing profile in massive stars. This helps, for instance in treating the…

Solar and Stellar Astrophysics · Physics 2024-04-18 C. I. Eze , G. Handler

V453 Cyg is an eclipsing binary containing 14 Msun and 11 Msun stars in an eccentric short-period orbit. We have discovered $\beta$ Cep-type pulsations in this system using TESS data. We identify seven significant pulsation frequencies,…

Solar and Stellar Astrophysics · Physics 2020-05-27 J. Southworth , D. M. Bowman , A. Tkachenko , K. Pavlovski

We present a new eclipsing binary (EB) showing multiperiodic oscillations using the first three sectors of {\it TESS} photometry. The eclipse and pulsation light curves of TIC 309658221 were modeled using an iterative method to obtain a…

Solar and Stellar Astrophysics · Physics 2019-05-15 Jae Woo Lee , Martti H. Kristiansen , Kyeongsoo Hong

The Gaia mission detected many new candidate $\beta$ Cephei ($\beta$ Cep) pulsators, whose variability classification has since been confirmed from Transiting Exoplanet Survey Satellite (TESS) space photometry of the nominal mission. We aim…

Solar and Stellar Astrophysics · Physics 2025-06-18 D. J. Fritzewski , M. Vanrespaille , C. Aerts , Z. Guo , D. Hey , J. De Ridder

GT\,Cep is a semi-detached close binary system with an orbital period of 4.91 days, containing a massive star. I have obtained spectroscopic observations and derived radial velocities of both components. Combining the analyses of radial…

Solar and Stellar Astrophysics · Physics 2015-06-22 Ö. Çakırlı

We present a detailed analysis of the high-mass binary system V1216 Sco, an eclipsing Algol-type binary hosting a $\beta$ Cephei pulsator, with an orbital period of 3.92 days. This system was analyzed using TESS photometry and…

Solar and Stellar Astrophysics · Physics 2025-01-08 A. Miszuda , C. I. Eze , F. Kahraman Alicavus , C. Johnston , G. Handler

We present an analysis of the high-mass eclipsing binary system VV Ori based on photometry from the TESS satellite. The primary star (B1V, 9.5 Msun) shows beta Cephei pulsations and the secondary (B7V, 3.8 Msun) is possibly a…

Solar and Stellar Astrophysics · Physics 2020-12-23 John Southworth , D. M. Bowman , K. Pavlovski

$\beta$ Cephei pulsating variable (BCEP) stars are the most massive pulsating variable stars in the main sequence, exhibiting both p- and g-mode pulsations. In this study, we identified 155 BCEP stars or candidates using data from TESS and…

Solar and Stellar Astrophysics · Physics 2024-12-06 Xiang-dong Shi , Sheng-bang Qian , Li-ying Zhu , Lin-jia Li , Er-gang Zhao , Wen-xu Lin

AI Hya has been known as an eclipsing binary with a monoperiodic $\delta$ Sct pulsator. We present the results from its {\it TESS} photometry observed during Sector 7. Including our five minimum epochs, the eclipse timing diagram displays…

Solar and Stellar Astrophysics · Physics 2020-05-06 Jae Woo Lee , Kyeongsoo Hong , Martti H. Kristiansen

Tidally tilted pulsators (TTPs), whose pulsation axis aligns with the binary's semi-major axis, represent a newly established class of oscillators in binary systems. While all previously known TTPs are either $\delta$ Scuti or subdwarf…

Solar and Stellar Astrophysics · Physics 2026-01-01 Ping Li , Wen-Ping Liao , Sheng-Bang Qian , Li-Ying Zhu , Jia Zhang , Qi-Bin Sun , Fang-Bin Meng

We present a systematic investigation of $\beta$ Cephei (BCEP) stars by integrating photometric data from the Transiting Exoplanet Survey Satellite (TESS) with astrometric parameters from Gaia Data Release 3. Utilizing TESS's short-cadence…

Solar and Stellar Astrophysics · Physics 2025-12-16 Xiang-dong Shi , Sheng-bang Qian , Li-ying Zhu , Lin-jia Li , Er-gang Zhao , David Mkrtichian , Farkhodjon Khamrakulov , Wen-xu Lin

EL CVn-type eclipsing binaries are composed of a massive A-type main-sequence primary star and a hotter B-type secondary star. This paper presents the time-series photometric and asteroseismic results of the EL CVn-type star 1SWASP…

Solar and Stellar Astrophysics · Physics 2021-11-03 Seung-Lee Kim , Jae Woo Lee , Chung-Uk Lee , Yongseok Lee , Dong-Joo Lee , Kyeongsoo Hong , Sang-Mok Cha , Dong-Jin Kim , Byeong-Gon Park

Eclipsing systems are essential objects for understanding the properties of stars and stellar systems. Eclipsing systems with pulsating components are furthermore advantageous because they provide accurate constraints on the component…

Solar and Stellar Astrophysics · Physics 2021-05-11 Patricia Lampens

CW Eri is a detached eclipsing binary system of two F-type stars with an orbital period of 2.728 d. Light curves from two sectors of observations with the Transiting Exoplanet Survey Satellite (TESS) and previously published radial velocity…

Solar and Stellar Astrophysics · Physics 2024-01-25 Stephen Overall , John Southworth

Determinations of stellar mass and radius with realistic uncertainties at the level of 1% provide important constraints on models of stellar structure and evolution. We present a high-precision light curve of the A0IV star Psi Centauri,…

Astrophysics · Physics 2009-11-11 H. Bruntt , J. Southworth , G. Torres , A. J. Penny , J. V. Clausen , D. L. Buzasi

We present the results of a search for Galactic Beta Cephei stars, which are massive pulsating stars with both pressure modes and mixed modes. Thus, these stars can serve as benchmarks for seismological studies of the interiors of massive…

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