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相关论文: Validation of the Frequency Modulation technique a…

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We started a program to search for companions around hybrid $\delta$ Sct/$\gamma$ Dor stars with the frequency modulation method using Kepler data. Our best candidate was KIC 5709664, where we could identify Fourier peaks with sidelobes,…

Stars that are both pulsating and eclipsing offer an important opportunity to better understand many of the physical phenomena that occur in stars, because it is possible to measure the pulsation frequencies of stars for which the masses…

太阳与恒星天体物理 · 物理学 2023-11-28 Zachary Jennings , John Southworth , Kresimir Pavlovski , Timothy Van Reeth

The short-period (P $\approx1.7$ d), Algol-type eclipsing binary KIC 7385478 consists of an F-type primary star ($M_1 \approx 1.71M_{\odot}$) and an evolved K-type secondary ($M_2 \approx 0.37M_{\odot}$) (Ozdarcan \& Ali Dal 2017). We study…

太阳与恒星天体物理 · 物理学 2019-09-18 Zhao Guo , Gang Li

The A/F-type stars and pulsators ($\delta$ Scuti-$\gamma$ Dor) are in a critical regime where they experience the transition from radiative to convective transport of energy in their envelopes. Such stars can pulsate in both gravity and…

太阳与恒星天体物理 · 物理学 2017-12-01 Anya , Samadi Gh. , Patricia Lampens , Davood M. Jassur

We present Kepler satellite photometry of KIC 10661783, a short-period binary star system which shows total eclipses and multi-periodic delta Scuti pulsations. A frequency analysis of the eclipse-subtracted light curve reveals at least 68…

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…

太阳与恒星天体物理 · 物理学 2024-11-05 Lixian Shen , Ali Esamdin , Chenglong Lv , Haozhi Wang , Taozhi Yang , Rivkat Karimov , Shuhrat A. Ehgamberdiev , Hubiao Niu , Jinzhong Liu

Eclipsing binary systems with a Delta (${\delta}$) Scuti component serve a vital role in deriving precise fundamental stellar parameters and testing stellar evolution models. This study mainly focuses on the Kepler target KIC 8569819, a…

太阳与恒星天体物理 · 物理学 2026-03-24 Dinesha Dharmathilaka , Janaka Adassuriya , Chandana Jayaratne , Jordi Gutiérrez

{KIC~8975515 is a \emph{Kepler} double-lined spectroscopic binary system with hybrid pulsations. Two components have similar atmospheric properties (T$_{\rm eff}$ $\sim$ 7400~K), and one of them is a fast rotator ($v\sin i = 162$ versus 32…

太阳与恒星天体物理 · 物理学 2020-07-01 A. Samadi-Ghadim , P. Lampens , D. M. Jassur , P. Jofré

The analysis of eclipsing binaries containing non-radial pulsators allows: i) to combine two different and independent sources of information on the internal structure and evolutionary status of the components, and ii) to study the effects…

太阳与恒星天体物理 · 物理学 2015-06-18 C. Maceroni , H. Lehmann , R. da Silva , J. Montalbán , C. -U. Lee , H. Ak , R. Deshpande , K. Yakut , J. Debosscher , Z. Guo , S. -L. Kim , J. W. Lee , J. Southworth

KIC 10661783 is an eclipsing binary that shows Delta Sct-like oscillations. More than 60 pulsation frequencies have been detected in its light curve as observed by the Kepler satellite. We want to determine the fundamental stellar and…

太阳与恒星天体物理 · 物理学 2013-08-20 H. Lehmann , J. Southworth , A. Tkachenko , K. Pavlovski

Pulsating stars in eclipsing binary systems offer a unique possibility to empirically identify pulsation modes using the geometric effect of the eclipses on the pulsation signals. Here we explore the $\delta$ Scuti type pulsations in the…

太阳与恒星天体物理 · 物理学 2025-01-29 A. Bókon , I. B. Bíró , A. Derekas

We used high-quality Kepler photometry and spectroscopic data to investigate the Kepler binary candidate KIC 5988140. Using the spectrum synthesis method, we derived the fundamental parameters Teff, log g, [M/H], and v.sini and the…

In this paper, we present a detailed analysis of the light variation of KIC 5623923 using high-precision time-series data from the $Kepler$ mission. The analysis reveals this target is an eclipsing binary system with $\delta$ Scuti type…

太阳与恒星天体物理 · 物理学 2025-11-26 Tao-Zhi Yang , Zhao-Yu Zuo , Shi-ping Guo , Xu Ding , Hao-zhi Wang , Shahidin Yaqup , Ali Esamdin

KIC10001893 is one out of 19 subdwarf-B (sdB) pulsators observed by the Kepler spacecraft in its primary mission. In addition to tens of pulsation frequencies in the g-mode domain, its Fourier spectrum shows three weak peaks at very low…

地球与行星天体物理 · 物理学 2014-11-05 R. Silvotti , S. Charpinet , E. Green , G. Fontaine , J. H. Telting , R. H. Ostensen , V. Van Grootel , A. S. Baran , S. Schuh , L. Fox Machado

Gamma Doradus and delta Scuti pulsators cover the transition region between low mass and massive main-sequence stars, and as such, are critical for testing stellar models. When they reside in binary systems, we can combine two independent…

We present the second results of an ensemble and systematic survey of oscillation mode variability in compact pulsators observed with the original {\sl Kepler} mission. Two types of flux calibrations, raw and corrected, collected on two hot…

太阳与恒星天体物理 · 物理学 2021-11-03 Weikai Zong , Stephane Charpinet , Gerard Vauclair

We present the first binary modelling results for the pulsating eclipsing binary KIC 11285625, discovered by the Kepler mission. An automated method to disentangle the pulsation spectrum and the orbital variability in high quality light…

太阳与恒星天体物理 · 物理学 2015-06-16 J. Debosscher , C. Aerts , A. Tkachenko , K. Pavlovski , C. Maceroni , D. Kurtz , P. G. Beck , S. Bloemen , P. Degroote , R. Lombaert , J. Southworth

Some pulsating stars are good clocks. When they are found in binary stars, the frequencies of their luminosity variations are modulated by the Doppler effect caused by orbital motion. For each pulsation frequency this manifests itself as a…

太阳与恒星天体物理 · 物理学 2015-06-04 Hiromoto Shibahashi , Donald W. Kurtz

We report the discovery of a post-mass transfer Gamma Doradus/Delta Scuti hybrid pulsator in the eclipsing binary KIC~9592855. This binary has a circular orbit, an orbital period of 1.2 days, and contains two stars of almost identical…

太阳与恒星天体物理 · 物理学 2017-12-20 Zhao Guo , Douglas R. Gies , Rachel. A. Matson

We present results of an asteroseismic study on the $\gamma$ Dor type {\it Kepler} target KIC\,6462033. {\it Kepler} photometry is used to derive the frequency content and principal modes. High-dispersion ground-based spectroscopy is also…

太阳与恒星天体物理 · 物理学 2014-01-10 C. Ulusoy , I. Stateva , I. Kh. Iliev , B. Ulaş
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