English
Related papers

Related papers: V456 Cyg: An eclipsing binary with tidally perturb…

200 papers

V1388 Ori is an early-B type detached eclipsing binary whose physical properties have previously been measured from dedicated spectroscopy and a ground-based survey light curve. We reconsider the properties of the system using…

Solar and Stellar Astrophysics · Physics 2022-05-19 John Southworth , Dominic M. Bowman

Pulsating stars in eclipsing binaries (EBs) provide an excellent opportunity to obtain precise, model-independent stellar parameters for studying oscillations in detail. One common class of pulsators in these EBs exhibits delta Scuti-type…

Solar and Stellar Astrophysics · Physics 2024-10-02 T. Pawar , K. G. Hełminiak , A. Moharana , G. Pawar , M. Pyatnytskyy , H. N. Lala , M. Konacki

Physical parameters were recently measured for several Cepheids in eclipsing binary systems in the LMC. It is a good opportunity to compare these results with models obtained from pulsation theory. Having well determined physical parameters…

Solar and Stellar Astrophysics · Physics 2018-03-30 Mónica Taormina , Bogumił Pilecki , Radosław Smolec

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…

Solar and Stellar Astrophysics · Physics 2017-12-20 Zhao Guo , Douglas R. Gies , Rachel. A. Matson

Eclipsing binary systems with pulsating components offer a unique possibility to accurately measure the most important parameters of pulsating stars, to study their evolution, and to test the pulsation theory. I will show what we can learn…

Solar and Stellar Astrophysics · Physics 2018-07-04 Bogumił Pilecki

In 2007, a companion with planetary mass was found around the pulsating subdwarf B star V391 Pegasi with the timing method, indicating that a previously undiscovered population of substellar companions to apparently single subdwarf B stars…

Pulsating stars occupy a significant place in the H-R diagram and it was thought that all stars inside the classical instability strip should pulsate. However, recent studies showed that there are many non-pulsating stars placed inside the…

Solar and Stellar Astrophysics · Physics 2022-02-02 F. Kahraman Alicavus , O. Ekinci

AI Hya has been known as an eclipsing binary with a monoperiodic $\delta$ Sct pulsator. We present the results from its {\it TESS} photometry observed during Sector 7. Including our five minimum epochs, the eclipse timing diagram displays…

Solar and Stellar Astrophysics · Physics 2020-05-06 Jae Woo Lee , Kyeongsoo Hong , Martti H. Kristiansen

Observations of gravitational wave (GW) signals produced by coalescing binary neutron stars (NS), like the GW event GW170817, can be exploited to constrain the equation of state (EoS) of matter in the stars' inner core. The information on…

General Relativity and Quantum Cosmology · Physics 2019-05-02 Tiziano Abdelsalhin

Asteroseismology has become an indispensable method for measuring stellar ages and radii, while binary systems remain the most prevalent tool for determining stellar masses. The synergy of the two, namely pulsating stars in binary systems,…

Solar and Stellar Astrophysics · Physics 2024-11-12 Simon J. Murphy

A noticeable fraction of subdwarf B stars shows either short-period (p-mode) or long-period (g-mode) luminosity variations, with two objects so far known to exhibit hybrid behaviour, i.e. showing both types of modes at the same time. The…

Solar and Stellar Astrophysics · Physics 2009-11-13 R. Lutz , S. Schuh , R. Silvotti , S. Bernabei , S. Dreizler , T. Stahn , S. D. Huegelmeyer

Neutron stars in coalescing binaries deform due to the tidal gravitational fields generated by their companions. During the inspiral phase, the tidal deformation is dominated by the fundamental oscillation ($f$-) mode of the stars. The tide…

General Relativity and Quantum Cosmology · Physics 2025-03-25 K. J. Kwon , Hang Yu , Tejaswi Venumadhav

We review the main results obtained from our seismic studies of B-type main sequence pulsators, based on the ground-based, MOST, Kepler and BRITE observations. Important constraints on stellar opacities, convective overshooting and rotation…

Solar and Stellar Astrophysics · Physics 2018-12-04 Jadwiga Daszynska-Daszkiewicz , Przemysław Walczak , Wojciech Szewczuk , Alosha Pamyatnykh

Eclipsing binary systems with pulsating components allow the determination of several physical parameters of the stars, such as mass and radius, that, when combined with the pulsation properties, can be used to constrain the modeling of…

Solar and Stellar Astrophysics · Physics 2014-05-08 Ronaldo da Silva , Carla Maceroni , Davide Gandolfi , Holger Lehmann , Artie P. Hatzes

We review the nature of the oscillations of main-sequence and supergiant stars of spectral type B. Seismic tuning of the interior structure parameters of the $\beta $Cep stars has been achieved since three years. The results are based on…

Astrophysics · Physics 2007-05-23 C. Aerts

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…

Solar and Stellar Astrophysics · Physics 2013-08-20 H. Lehmann , J. Southworth , A. Tkachenko , K. Pavlovski

In recent years we have witnessed an explosion of photometric time-series data, collected for the purpose of finding a small number of rare sources, such as transiting extrasolar planets and gravitational microlenses. Once combed, these…

V454 Aur is an eclipsing binary system containing two solar-type stars on an orbit of relatively long period (P = 27.02 d) and large eccentricity (e = 0.381). Eclipses were detected using data from the Hipparcos satellite, and a…

Solar and Stellar Astrophysics · Physics 2024-05-13 John Southworth

Tidal interactions between short-period exoplanets and their host stars drive orbital decay and have likely led to engulfment of planets by their stars. Precise transit timing surveys, with baselines now spanning decades for some planets,…

Earth and Planetary Astrophysics · Physics 2023-08-10 Brian Jackson , Elisabeth R. Adams , Jeffrey P. Morgenthaler

We present highlights and an overview of 20 FUSE and HST/STIS observations of the bright symbiotic binary EG And. The main motivation behind this work is to obtain spatially-resolved information on an evolved giant star in order to…

Astrophysics · Physics 2007-10-15 Cian Crowley , B. R. Espey , S. R. McCandliss