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Related papers: The Eclipsing $\delta$ Scuti Star EPIC 245932119

200 papers

We present the eclipsing Heartbeat Star KIC 9704906 with tidally excited oscillations (TEOs) and gamma Doradus/delta Scuti hybrid pulsations. The derived parameters show that it has an orbital period of $P$=8.7529108(1) days, a high…

Solar and Stellar Astrophysics · Physics 2024-12-10 Min-Yu Li , Sheng-Bang Qian , Li-Ying Zhu , Liang Liu , Wen-Ping Liao , Er-Gang Zhao , Xiang-Dong Shi , Fu-Xing Li , Qi-Bin Sun

We present high-precision TESS photometry of V421 Peg (TIC 301747091), an early F-type eclipsing binary containing a candidate $\gamma$ Dor component. The observed short-cadence data allow the detection of pulsation signals, along with…

Solar and Stellar Astrophysics · Physics 2025-10-02 Jae Woo Lee

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…

Solar and Stellar Astrophysics · Physics 2026-03-24 Dinesha Dharmathilaka , Janaka Adassuriya , Chandana Jayaratne , Jordi Gutiérrez

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…

Solar and Stellar Astrophysics · Physics 2022-07-27 A. Liakos , D. J. W. Moriarty , M. G. Blackford , J. F. West , P. Evans , C. M. Moriarty , S. M. Sweet

We report the analysis of high temporal resolution ground and space based photometric observations of SZ Lyncis, a binary star one of whose components is a high amplitude $\delta$ Scuti. UBVR photometric observations were obtained from Mt.…

Solar and Stellar Astrophysics · Physics 2020-12-23 J. Adassuriya , S. Ganesh , J. L. Gutierrez , G. Handler , Santosh Joshi , K. P. S. C. Jayaratne , K. S. Baliyan

We present a seismic study of $\delta$ Scuti based on a mode identification from multicoulor photometry. The dominant frequency can be associated only with a radial mode and the second frequency is, most probably, a dipole mode. The other…

Solar and Stellar Astrophysics · Physics 2021-05-26 Jadwiga Daszynska-Daszkiewicz , A. A. Pamyatnykh , P. Walczak , G. Handler , A. Pigulski , W. Szewczuk

We present the physical properties of V404 Lyr exhibiting eclipse timing variations and multiperiodic pulsations from all historical data including the Kepler observations. Detailed analyses of 2,922 minimum epochs showed that the orbital…

Solar and Stellar Astrophysics · Physics 2015-06-19 Jae Woo Lee , Seung-Lee Kim , Kyeongsoo Hong , Chung-Uk Lee , Jae-Rim Koo

IM Per is a triple star system whose eclipsing pair masses and radii are accurate to within 1 \%. The TESS light curve of the program target exhibits partial eclipses and multiple oscillations with mmag-level amplitudes. It is found that…

Solar and Stellar Astrophysics · Physics 2021-03-03 Jae Woo Lee , Kyeongsoo Hong , Hye-Young Kim

In this paper, we present an analysis of the pulsating behavior of Kepler target KIC 9845907. Using the data from Kepler, we detected 85 significant frequencies, including the first overtone $f_{1}$ = 17.597 day$^{-1}$ as the dominant…

Solar and Stellar Astrophysics · Physics 2023-09-18 Xiao-Ya Sun , Zhao-Yu Zuo , Tao-Zhi Yang , Antonio García Hernández

Time-series photometric observations were made for the High Amplitude $\delta$ Scuti star CW Ser between 2011 and 2012 at the Xinglong Station of National Astronomical Observatories of China. After the frequency analysis of the light…

Solar and Stellar Astrophysics · Physics 2015-06-15 Jia-Shu Niu , Jian-Ning Fu , Wei-Kai Zong

Results from a six year systematic observational survey on candidate eclipsing binaries with a $\delta$ delta Sct component are presented. More than a hundred systems with component(s) of A-F spectral types were observed in the frame of…

Solar and Stellar Astrophysics · Physics 2015-06-25 Alexios Liakos , Panagiotis Niarchos

RR Lyn is a detached eclipsing binary with a 9.95 d orbit containing two A-stars: one metallic-lined and one possibly metal-poor. We use the light curve from the TESS satellite and two sets of published radial velocity measurements to…

Solar and Stellar Astrophysics · Physics 2021-09-22 John Southworth

We have explored a sample of suspected A-type binaries in a systematic way, both spectroscopically and photometrically. Due to their location in the H-R diagram, indications of pulsation and/or chemical peculiarities among these suspected…

We present a comprehensive photometric study of the pulsating, eclipsing binary OO Dra. Simultaneous B- and V-band photometry of the star was carried out on 14 nights. Revised orbital period and a new ephemeris were derived from the data.…

Solar and Stellar Astrophysics · Physics 2015-06-22 X. B. Zhang , L. C. Deng , J. F. Tian , K. Wang , J. J. Sun , Q. L. Liu , H. Q. Xin , Q. Zhou , Z. Z. Yan , Z. Q. Luo , C. Q. Luo

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,…

Astrophysics · Physics 2007-05-23 S. Dallaporta , U. Munari

The present paper focuses on the eclipsing binary KIC 8553788 which belongs to two different types of binary systems regarding its physical properties. In particular, it is one of the 71 oscillating stars of Algol type that have been…

Solar and Stellar Astrophysics · Physics 2018-09-05 Alexios Liakos

GK Dra is a detached eclipsing binary system containing two early-F stars, one evolved, in an orbit with a period of 9.974 d and a small eccentricity. Its eclipsing nature was discovered using Hipparcos data, and pulsations were found in…

Solar and Stellar Astrophysics · Physics 2024-01-25 John Southworth

Eclipsing systems are essential objects for understanding the properties of stars and stellar systems. Eclipsing systems with pulsating components are furthermore advantageous because they provide accurate constraints on the component…

Solar and Stellar Astrophysics · Physics 2021-05-11 Patricia Lampens

We present a new study of the Algol-type eclipsing binary system AS Eri based on the combination of the MOST and TESS light curves and a collection of very precise radial velocities obtained with the spectrographs HERMES operating at the…

Solar and Stellar Astrophysics · Physics 2022-02-04 P. Lampens , D. Mkrtichian , H. Lehmann , K. Gunsriwiwat , L. Vermeylen , J. Matthews , R. Kuschnig

We present the discovery and CCD observations of the first eclipsing binary with a Type II Cepheid component in our Galaxy. The pulsation and orbital periods are found to be 4.1523 and 51.38 days, respectively, i.e. this variable is a…

Astrophysics · Physics 2014-11-18 S. V. Antipin , K. V. Sokolovsky , T. I. Ignatieva