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Related papers: Discovery of $\beta$ Cep pulsations in the eclipsi…

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We have acquired simultaneous high-precision space photometry and radial velocities of the bright hybrid Beta Cep/SPB pulsator Gamma Peg. Frequency analyses reveal the presence of six g modes of high radial order together with eight…

Solar and Stellar Astrophysics · Physics 2015-05-13 G. Handler

Classification of over 50000 TESS stars in sectors 1-18 has resulted in the detection of 766 pulsating main sequence B stars as well as over 5000 $\delta$ Scuti, 2300 $\gamma$ Doradus and 114 roAp candidates. It is found that a distinct…

Solar and Stellar Astrophysics · Physics 2020-03-18 Luis A Balona , Dogus Ozuyar

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

In this paper, we analyze the light variation of KIC 8840638 using high-precision time-series data from $Kepler$ mission. The analysis reveals this target is a new Algol-type eclipsing binary system with a $\delta$ Scuti component, not a…

Solar and Stellar Astrophysics · Physics 2021-01-15 Tao-Zhi Yang , Zhao-Yu Zuo , Jun-Hui Liu , Xiao-Ya Sun

Pulsating stars in eclipsing binary systems play an important role in asteroseismology. The combination of their spectroscopic and photometric orbital solutions can be used to determine, or at least to constrain, the masses and radii of…

Solar and Stellar Astrophysics · Physics 2014-03-05 D. Drobek , A. Pigulski

Eclipsing binaries (EBs) are unique targets for measuring precise stellar properties and constrain stellar evolution models. In particular, it is possible to measure at the percent level masses and radii of both components of a double-lined…

Solar and Stellar Astrophysics · Physics 2020-01-08 Patrick Gaulme , Joyce A. Guzik

We present a detailed analysis of the bright Cepheid-type variable star V1154 Cygni using 4 years of continuous observations by the Kepler space telescope. We detected 28 frequencies using standard Fourier transform method.We identified…

Solar and Stellar Astrophysics · Physics 2016-11-15 A. Derekas , E. Plachy , L. Molnar , A. Sodor , J. M. Benko , L. Szabados , Zs. Bognar , B. Csak , Gy. M. Szabo , R. Szabo , A. Pal

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…

Solar and Stellar Astrophysics · Physics 2024-12-11 Yajuan Lei , Guiping Zhou , Liang Wang , Guangwei Li , Kai Li , Tuan Yi

This investigation integrates five decades of ground-based photometric data from the AAVSO, AFOEV, ASAS, ASAS-SN, and SuperWASP surveys with recently acquired TESS observations, conducting a multi-wavelength and multi-phase photometric…

Solar and Stellar Astrophysics · Physics 2025-11-05 Cenk Kayhan , Timur Şahin

We present new photometric and spectroscopic observations and analyses for the eclipsing binary systems V1241 Tau and GQ Dra. Our photometric light and radial velocity curves analyses combining with the TESS light curves show that both are…

Solar and Stellar Astrophysics · Physics 2021-02-17 B. Ulas , K. Gazeas , A. Liakos , C. Ulusoy , I. Stateva , N. Erkan , M. Napetova , I. Kh. Iliev

We report the discovery of an eclipsing binary millisecond pulsar in the globular cluster M92 (NGC6341) with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). PSR J1717+4308A, or M92A, has a pulse frequency of 316.5~Hz…

We report the first discovery of a transiting circumbinary planet detected from a single sector of TESS data. During Sector 21, the planet TIC 172900988b transited the primary star and then 5 days later it transited the secondary star. The…

Earth and Planetary Astrophysics · Physics 2021-11-17 Veselin B. Kostov , Brian P. Powell , Jerome A. Orosz , William F. Welsh , William Cochran , Karen A. Collins , Michael Endl , Coel Hellier , David W. Latham , Phillip MacQueen , Joshua Pepper , Billy Quarles , Lalitha Sairam , Guillermo Torres , Robert F. Wilson , Serge Bergeron , Pat Boyce , Allyson Bieryla , Robert Buchheim , Caleb Ben Christiansen , David R. Ciardi , Kevin I. Collins , Dennis M. Conti , Scott Dixon , Pere Guerra , Nader Haghighipour , Jeffrey Herman , Eric G. Hintz , Ward S. Howard , Eric L. N. Jensen , John F. Kielkopf , Ethan Kruse , Nicholas M. Law , David Martin , Pierre F. L. Maxted , Benjamin T. Montet , Felipe Murgas , Matt Nelson , Greg Olmschenk , Sebastian Otero , Robert Quimby , Michael Richmond , Richard P. Schwarz , Avi Shporer , Keivan G. Stassun , Denise C. Stephens , Amaury H. M. J. Triaud , Joe Ulowetz , Bradley S. Walter , Edward Wiley , David Wood , Mitchell Yenawine , Eric Agol , Thomas Barclay , Thomas G. Beatty , Isabelle Boisse , Douglas A. Caldwell , Jessie Christiansen , Knicole D. Colon , Magali Deleuil , Laurance Doyle , Daniel Fabrycky , Michael Fausnaugh , Gabor Furesz , Emily A. Gilbert , Guillaume Hebrard , David J. James , Jon Jenkins , Stephen R. Kane , Richard C. Kidwell , Ravi Kopparapu , Gongjie Li , Jack J. Lissauer , Michael B. Lund , Steve Majewski , Tsevi Mazeh , Samuel N. Quinn , Elisa Quintana , George Ricker , Joseph E. Rodriguez , Jason Rowe , Alexander Santerne , Joshua Schlieder , Sara Seager , Matthew R. Standing , Daniel J. Stevens , Eric B. Ting , Roland Vanderspek , Joshua N. Winn

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

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

V391 Peg (alias HS2201+2610) is a subdwarf B (sdB) pulsating star that shows both p- and g-modes. By studying the arrival times of the p-mode maxima and minima through the O-C method, in a previous article the presence of a planet was…

Solar and Stellar Astrophysics · Physics 2018-04-04 R. Silvotti , S. Schuh , S. -L. Kim , R. Lutz , M. Reed , S. Benatti , R. Janulis , L. Lanteri , R. Ostensen , T. R. Marsh , V. S. Dhillon , M. Paparo , L. Molnar

We present a detailed analysis of an eclipsing double-lined binary FX UMa based on TESS photometry and newly acquired spectroscopic observations. The radial velocities and atmospheric parameters for each component star are obtained from the…

Solar and Stellar Astrophysics · Physics 2023-07-12 Kun Wang , Anbing Ren , Mads Fredslund Andersen , Frank Grundahl , Tao Chen , Pere L. Palle

High-precision interferometric measurements of pulsating stars help to characterize their close environment. In 1974, a close companion was discovered around the pulsating star beta Cep using the speckle interferometry technique and…

We report an analysis of the first known Beta Cep pulsator observed by the TESS mission, the runaway star PHL 346 = HN Aqr. The star, previously known as a singly-periodic pulsator, has at least 34 oscillation modes excited, 12 of those in…

We present results of a Transiting Exoplanet Survey Satellite (TESS) search for short-period pulsations in compact stellar objects observed in years 1 and 3 of the TESS mission, during which the southern ecliptic hemisphere was targeted. We…

Solar and Stellar Astrophysics · Physics 2023-01-11 A. S. Baran , V. Van Grootel , R. H. Ostensen , H. L. Worters , S. K. Sahoo , S. Sanjayan , S. Charpinet , P. Nemeth , J. H. Telting , D. Kilkenny

Using TESS 20-sec cadence data, we have discovered an unusual combination of pulsating stars in what we infer to be a binary system. The binary consists of a standard $\delta$ Scuti star with pulsations over the range 32-41 d$^{-1}$; this…

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