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相关论文: Time-series spectroscopy of the pulsating eclipsin…

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Eclipsing binaries with pulsating components are a distinct subclass of binaries, merging orbital and pulsational analyses. In recent years, that subclass led to the definition of a newly formed branch of tidal asteroseismology. While…

太阳与恒星天体物理 · 物理学 2025-08-19 A. Miszuda

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…

太阳与恒星天体物理 · 物理学 2021-02-17 B. Ulas , K. Gazeas , A. Liakos , C. Ulusoy , I. Stateva , N. Erkan , M. Napetova , I. Kh. Iliev

Knowledge of the chemical composition and absolute masses of Capella are key to understanding the evolutionary state of this benchmark binary system comprising two giant stars. Previous efforts, including our own 2009 study, have largely…

太阳与恒星天体物理 · 物理学 2015-05-29 Guillermo Torres , Antonio Claret , Kresimir Pavlovski , Aaron Dotter

We present the physical properties of the eclipsing binary V2281 Cyg, which shows a light-time effect due to a supposed tertiary component from its eclipse timing variation according to the $Kepler$ observations. The high-resolution spectra…

太阳与恒星天体物理 · 物理学 2017-11-29 Jae-Rim Koo , Jae Woo Lee , Kyeongsoo Hong

We present a detailed X-ray analysis and imaging of stellar coronae of five coronally connected eclipsing binaries, namely, 44 Boo, DV Psc, ER Vul, XY UMa, and TX Cnc. Both components of these binaries are found to be active. The X-ray…

太阳与恒星天体物理 · 物理学 2022-07-27 Gurpreet Singh , J. C. Pandey

We present a complex study of the eclipsing binary system, AB Cas. The analysis of the whole TESS light curve, corrected for the binary effects, reveals 112 significant frequency peaks with 17 independent signals. The dominant frequency…

太阳与恒星天体物理 · 物理学 2022-05-11 A. Miszuda , P. A. Kołaczek-Szymański , W. Szewczuk , J. Daszyńska-Daszkiewicz

This work presents an extensive analysis of the properties of three southern semi-detached eclipsing binaries hosting a pulsating component, namely HM Pup, V632 Sco, and TT Vel. Systematic multi-filtered photometric observations were…

太阳与恒星天体物理 · 物理学 2022-07-27 A. Liakos , D. J. W. Moriarty , M. G. Blackford , J. F. West , P. Evans , C. M. Moriarty , S. M. Sweet

New photometric, spectroscopic, and eclipse timing observations of the eclipsing binary star HP Aur allow for very accurate orbital determinations, even in the presence of a third body and transient starspot activity. The eclipsing binary…

太阳与恒星天体物理 · 物理学 2015-06-17 Claud H. Sandberg Lacy , Guillermo Torres , Marek Wolf , Charles L. Burks

SuWt2 is a planetary nebula (PN) consisting of a bright ionized thin ring seen nearly edge-on. It has a bright (V=12) central star, too cool to ionize the PN, which we discovered to be an eclipsing binary. A spectrum from IUE did not reveal…

太阳与恒星天体物理 · 物理学 2015-05-19 K. Exter , Howard E. Bond , Keivan G. Stassun , B. Smalley , P. F. L. Maxted , D. L. Pollacco

Multiband CCD photometric observations of SZ Her were obtained between 2008 February and May. The light curve was completely covered and indicated a significant temperature difference between both components. The light-curve synthesis…

太阳与恒星天体物理 · 物理学 2015-06-03 Jae Woo Lee , Chung-Uk Lee , Seung-Lee Kim , Ho-Il Kim , Jang-Ho Park

Context. This research paper contains light curve modelling, spectroscopy and detailed asteroseismic studies for four out of five in total semidetached eclipsing binaries with a delta Scuti component, that have been detected to date through…

太阳与恒星天体物理 · 物理学 2017-11-22 Alexios Liakos

The eclipsing X-ray binary M33 X-7 was in the field of view during several observations of our XMM-Newton M33 survey and in the archival Chanfdra observation 1730 which cover a large part of the 3.45 d orbital period. We detect emission of…

天体物理学 · 物理学 2009-11-10 W. Pietsch , B. J. Mochejska , Z. Misanovic , F. Haberl , M. Ehle , G. Trinchieri

Early-type magnetic stars are rarely found in close binary systems. No such objects were known in eclipsing binaries prior to this study. Here we investigated the eclipsing, spectroscopic double-lined binary HD66051, which exhibits…

太阳与恒星天体物理 · 物理学 2018-05-16 O. Kochukhov , C. Johnston , E. Alecian , G. A. Wade

We report extensive differential V-band photometry and high-resolution spectroscopy for the 1.14 day, detached, double-lined eclipsing binary BT Vul (F0+F7). Our radial-velocity monitoring and light curve analysis lead to absolute masses…

太阳与恒星天体物理 · 物理学 2020-05-20 Guillermo Torres , Claud H. Sandberg Lacy , Francis C. Fekel , Matthew W. Muterspaugh

Aims. We present and analyse the detailed physical properties of six binary stellar systems, originally proposed as possible star-black hole binaries on the basis of radial velocities from Gaia's third data release, but soon recognised as…

We present radial velocities of the double-lined spectroscopic binary NP Aqr. The radial velocities and the optical light curves obtained by Hipparcos and ASAS-3 are analyzed separately. The masses of the primary and secondary components…

太阳与恒星天体物理 · 物理学 2014-11-20 C. Ibanoglu , O. Cakirli , A. Dervisoglu

We present the preliminary results of the study of an interesting target in the first CoRoT exo-planet field (IRa1): CoRoT 102918586. Its light curve presents additional variability on the top of the eclipses, whose pattern suggests multi-…

太阳与恒星天体物理 · 物理学 2010-04-12 C. Maceroni , D. Cardini , C. Damiani , D. Gandolfi , J. Debosscher , A. Hatzes , E. W. Guenther , C. Aerts

AR Aur is a detached eclipsing binary containing two late-B stars which are chemically peculiar, on a circular orbit of period 4.135 d. The primary is a HgMn star which shows temporal changes in its chemical abundances and spectral line…

太阳与恒星天体物理 · 物理学 2025-07-30 John Southworth

The A-type star HR 6412 = V2368 Oph was used by several investigators as a photometric comparison star for the known eclipsing binary U Oph but was found to be variable by three independent groups, including us. By analysing series of new…

太阳与恒星天体物理 · 物理学 2015-05-28 P. Harmanec , H. Božić , P. Mayer , P. Eenens , M. Brož , M. Wolf , S. Yang , M. Šlechta , D. Ruždjak , D. Sudar , H. Ak

In a well-aimed search based on the recently published Gaia~DR2 radial velocity data and performed with the robotic TIGRE telescope, we have discovered 19 bright ($m_V<7.66$~mag) spectroscopic binary stars. We present the radial velocity…

太阳与恒星天体物理 · 物理学 2020-10-07 Dennis Jack , Missael Alejandro Hernández Huerta , Klaus-Peter Schröder