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相关论文: KIC 3858884: a hybrid {\delta} Sct pulsator in a h…

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KIC 9406652, one of the recently identified IW And-type dwarf novae, is the best target for studying the tilted disk in cataclysmic variable stars. In a previous paper by Kimura, Osaki, and Kato (2020), we analyzed its Kepler light curves…

太阳与恒星天体物理 · 物理学 2021-07-21 Mariko Kimura , Yoji Osaki

Accurate and extensive photoelectric photometry has been obtained of V994 Her which was discovered as an eclipsing binary by Hipparcos satellite. A marked pulsation activity is evident in the light-curve, with periods 0.152100488,…

天体物理学 · 物理学 2007-05-23 S. Dallaporta , U. Munari

The presence of A/F-type {\it Kepler} hybrid stars extending across the entire $\delta$ Sct-$\gamma$ Dor instability strips and beyond remains largely unexplained. In order to better understand these particular stars, we performed a…

太阳与恒星天体物理 · 物理学 2021-03-31 P. Lampens , L. Vermeylen , Y. Frémat , Á. Sódor , M. Skarka , A. Samadi-Ghadim , Zs. Bognár , H. Lehmann , P. De Cat , A. Goswami , L. Dumortier

Amongst the intermediate mass pulsating stars known as $\delta$ Sct stars is a subset of high-amplitude and predominantly radial-mode pulsators known as high-amplitude $\delta$ Sct (HADS) stars. From more than 2000 $\delta$ Sct stars…

太阳与恒星天体物理 · 物理学 2021-04-28 D. M. Bowman , J. Hermans , J. Daszyńska-Daszkiewicz , D. L. Holdsworth , A. Tkachenko , S. J. Murphy , B. Smalley , D. W. Kurtz

We report on the properties of eclipsing binaries from the Kepler mission with a newly developed photometric modeling code, which uses the light curve, spectral energy distribution of each binary, and stellar evolution models to infer…

太阳与恒星天体物理 · 物理学 2019-08-14 Diana Windemuth , Eric Agol , Aleezah Ali , Flavien Kiefer

We have found a system listed in the Kepler Binary Catalog (3.273 day period; Prsa et al. 2010) that we have determined is comprised of a low-mass, thermally-bloated, hot white dwarf orbiting an A star of about 2.3 solar masses. In this…

太阳与恒星天体物理 · 物理学 2015-05-20 Joshua A. Carter , Saul Rappaport , Daniel Fabrycky

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

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

We searched the SuperWASP archive for objects displaying multiply periodic photometric variations. Specifically we sought evidence for eclipsing binary stars displaying a further non-harmonically related signal in their power spectra. The…

太阳与恒星天体物理 · 物理学 2016-02-17 A. J. Norton , M. E. Lohr , B. Smalley , P. J. Wheatley , R. G. West

The purpose of this work is to extend a sample of accurately modeled, benchmark-grade eclipsing binaries with accurately determined masses and radii. We select four "well-behaved" Kepler binaries, KIC2306740, KIC4076952, KIC5193386 and…

太阳与恒星天体物理 · 物理学 2022-12-05 Kelly Hambleton , Andrej Prsa , Scott W. Fleming , Suvrath Mahadevan , Chad F. Bender

We present the results of a study of the type II Cepheid ($P_{puls} = 4.974 d$) in the eclipsing binary system OGLE-LMC-T2CEP-098 ($P_{orb} = 397.2 d$). The Cepheid belongs to the peculiar W Vir group, for which the evolutionary status is…

KIC 5773205 is the least luminous eclipsing M dwarf found in the Villanova catalog of eclipsing binaries detected by the {\it Kepler} mission. We processed and analyzed the three available quarters of mission data for this star and…

太阳与恒星天体物理 · 物理学 2020-01-03 Valeri V. Makarov , Alexey Goldin

We have modified the graphical user interfaced close binary system analysis program CurveFit to the form WinKepler and applied it to 16 representative planetary candidate light curves found in the NASA Exoplanet Archive (NEA) at the Caltech…

太阳与恒星天体物理 · 物理学 2015-06-18 M. D. Rhodes , E. Budding

Extrasolar planets on eccentric short-period orbits provide a laboratory in which to study radiative and tidal interactions between a planet and its host star under extreme forcing conditions. Studying such systems probes how the planet's…

K2, the two-wheel mission of the Kepler space telescope, observed the pulsating subdwarf B star EQ Psc during engineering tests in 2014 February. In addition to a rich spectrum of g-mode pulsation frequencies, the observations demonstrate a…

太阳与恒星天体物理 · 物理学 2015-06-19 C. S. Jeffery , Gavin Ramsay

KIC 9406652 is a remarkable variable star in the Kepler field of view that shows both very rapid oscillations and long term outbursts in its light curve. We present an analysis of the light curve over quarters 1 to 15 and new spectroscopy…

We analyze the full $\mathit{Kepler}$ phase curve of KOI-964, a binary system consisting of a hot white dwarf on an eclipsing orbit around an A-type host star. Using all 18 quarters of long-cadence photometry, we carry out a joint light…

We propose that KIC 1573174 is a quadruple-mode $\delta$ Scuti star with pulsation amplitudes between those of the HADS (high-amplitude Delta Scuti star) group and average low-amplitude pulsators. The radial modes detected in this star…

太阳与恒星天体物理 · 物理学 2022-06-22 Chenglong Lv , Ali Esamdin , Javier Pascual-Granado , Taozhi Yang , Dongxiang Shen

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

We report eclipse timing variation analyses of 26 compact hierarchical triple stars comprised of an eccentric eclipsing ('inner') binary and a relatively close tertiary component found in the {\em Kepler} field. We simultaneously fit the…

太阳与恒星天体物理 · 物理学 2015-06-23 Tamas Borkovits , Saul Rappaport , Tamas Hajdu , Janos Sztakovics