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相关论文: Discovery of $\beta$ Cep pulsations in the eclipsi…

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$\beta$ 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…

太阳与恒星天体物理 · 物理学 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

CW Cep is an early B-type eclipsing binary with mass measurement precisions better than 1 \%. We report the discovery of pulsation signatures in the TESS time-series data of the system observed during Sectors 17 and 18. Our binary modeling…

太阳与恒星天体物理 · 物理学 2020-12-23 Jae Woo Lee , Kyeongsoo Hong

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…

太阳与恒星天体物理 · 物理学 2020-12-23 John Southworth , D. M. Bowman , K. Pavlovski

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…

太阳与恒星天体物理 · 物理学 2024-03-20 Christian I. Eze , Gerald Handler

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…

太阳与恒星天体物理 · 物理学 2024-04-18 C. I. Eze , G. Handler

We derive absolute dimensions of the early B-type detached eclipsing binary V453 Cygni (B0.4 IV + B0.7 IV, P=3.89d), a member of the open cluster NGC 6871. From the analysis of new, high-resolution, spectroscopy and the UBV light curves of…

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

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…

太阳与恒星天体物理 · 物理学 2022-04-13 John Southworth , Dominic M. Bowman

V498 Cyg is an early-B-type binary known to show eclipses on a period of 3.48 d, and two sets of spectral lines. We present the discovery of a second set of eclipses, on a 1.44-d period, in the light curve of this object from the Transiting…

太阳与恒星天体物理 · 物理学 2022-01-10 John Southworth

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…

太阳与恒星天体物理 · 物理学 2025-09-24 O. Cakirli , B. Hoyman , O. Ozdarcan , S. Bilir

The eclipsing and double-lined spectroscopic binary system V453 Cygni consists of two early B-type stars, one of which is nearing the terminal age main sequence and one which is roughly halfway through its main sequence lifetime. Accurate…

天体物理学 · 物理学 2009-11-13 K. Pavlovski , J. Southworth

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…

太阳与恒星天体物理 · 物理学 2022-04-06 T. Van Reeth , J. Southworth , J. Van Beeck , D. M. Bowman

Recent BRITE-Constellation space photometry of the slowly rotating, magnetic $\beta$ Cep pulsator $\xi^1$ CMa permits a new analysis of its pulsation properties. Analysis of the two-colour BRITE data reveals the well-known single pulsation…

太阳与恒星天体物理 · 物理学 2020-01-22 G. A. Wade , A. Pigulski , S. Begy , M. Shultz , G. Handler , J. Sikora , H. Neilson , H. Cugier , C. Erba , A. F. J. Moffat , B. Pablo , A. Popowicz , W. Weiss , K. Zwintz

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…

太阳与恒星天体物理 · 物理学 2019-05-15 Jae Woo Lee , Martti H. Kristiansen , Kyeongsoo Hong

We present the discovery of three new $\beta$ Cep pulsators, three new pulsators with frequency groupings, and frequency patterns in a B3Ib star, all of which show pulsations with frequencies as high as about 17 d$^{-1}$, with K2 space…

太阳与恒星天体物理 · 物理学 2019-09-04 S. Burssens , D. M. Bowman , C. Aerts , M. G. Pedersen , E. Moravveji , B. Buysschaert

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…

太阳与恒星天体物理 · 物理学 2025-01-08 A. Miszuda , C. I. Eze , F. Kahraman Alicavus , C. Johnston , G. Handler

This paper aims to precisely determine the masses and detect pulsation modes in the two massive components of Beta Cen with BRITE-Constellation photometry. In addition, seismic models for the components are considered and the effects of…

V1765 Cyg is a detached eclipsing binary containing a B0.5 supergiant and a B1 main-sequence star, with an orbital period of 13.37 d and an eccentricity of 0.315. The system shows apsidal motion and the supergiant exhibits strong stochastic…

太阳与恒星天体物理 · 物理学 2023-11-02 John Southworth

We study 119 B stars located in the Scorpius-Centaurus Association using data from NASA's TESS Mission. We see pulsations in 81 stars (68%) across the full range of effective temperatures. In particular, we confirm previous reports of…

太阳与恒星天体物理 · 物理学 2026-02-18 Awshesh N. Sharma , Timothy R. Bedding , Hideyuki Saio , Timothy R. White

The prototype of the Beta Cep class of pulsating stars, Beta Cep, rotates relatively slowly, and yet displays episodic Halpha emission. Such behaviour is typical of a classical Be star. For some time this posed a contradiction to our…

太阳与恒星天体物理 · 物理学 2009-11-13 H. E. Wheelwright , R. D. Oudmaijer , R. S. Schnerr

Radial-velocity measurements and sine-curve fits to the orbital radial velocity variations are presented for ten close binary systems: EG Cep,V1191 Cyg, V1003 Her, BD+7_3142, V357 Peg, V407 Peg, V1123 Tau, V1128 Tau, HH UMa, and PY Vir.…

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