Results 41 to 50 of about 59,262 (278)

Magnetic Inflation and Stellar Mass. I. Revised Parameters for the Component Stars of the Kepler Low-mass Eclipsing Binary T-Cyg1-12664 [PDF]

open access: yes, 2017
Several low-mass eclipsing binary stars show larger than expected radii for their measured mass, metallicity, and age. One proposed mechanism for this radius inflation involves inhibited internal convection and starspots caused by strong magnetic fields.
E. Han   +8 more
semanticscholar   +1 more source

Space-Based Photometry of Binary Stars: From Voyager to TESS

open access: yesUniverse, 2021
Binary stars are crucial laboratories for stellar physics, so have been photometric targets for space missions beginning with the very first orbiting telescope (OAO-2) launched in 1968.
John Southworth
doaj   +1 more source

An Adaptive Optics Survey of Stellar Variability at the Galactic Center [PDF]

open access: yes, 2018
We present a $\approx 11.5$ year adaptive optics (AO) study of stellar variability and search for eclipsing binaries in the central $\sim 0.4$ pc ($\sim 10''$) of the Milky Way nuclear star cluster.
Becklin, Eric E.   +11 more
core   +3 more sources

CALIBRATING THE UPDATED OVERSHOOT MIXING MODEL ON ECLIPSING BINARY STARS: HY Vir, YZ Cas, χ2 Hya, and VV Crv [PDF]

open access: yes, 2014
Detached eclipsing binary stars with convective cores provide a good tool to investigate convective core overshoot. It has been performed on some binary stars to restrict the classical overshoot model which simply extends the boundary of the fully mixed ...
Y. Meng, Q. S. Zhang
semanticscholar   +1 more source

Eclipsing Binary Stars in Nearby Galaxies [PDF]

open access: yesAstrophysics and Space Science, 2006
We briefly discuss the survey programme we are conducting to detect eclipsing binaries in local group galaxies. Some lightcurves from studies of M31, IC 1613 and NGC 6822 are presented along with details of future work.
Ian Todd   +5 more
openaire   +1 more source

The Mass-Radius(-Rotation?) Relation for Low-Mass Stars [PDF]

open access: yes, 2010
The fundamental properties of low-mass stars are not as well understood as those of their more massive counterparts. The best method for constraining these properties, especially masses and radii, is to study eclipsing binary systems, but only a small ...
Adam L. Kraus   +45 more
core   +2 more sources

Eclipsing binaries with candidate CP stars [PDF]

open access: yesAstronomy & Astrophysics, 2001
We present a detailed study of an eclipsing binary which had been classied Ap SrCrEu (Hartoog 1976) before being known as a binary. Radial velocities measured at the times of both quadratures allow us to obtain precise masses for both components, while the light curve yields the radii.
Y. Debernardi, P. North
openaire   +1 more source

Asteroseismology of binary stars and a compilation of core overshoot and rotational frequency values of OB stars [PDF]

open access: yes, 2013
After a brief introduction into the asteroseismic modelling of stars, we provide a compilation of the current seismic estimates of the core overshooting parameter and of the rotational frequency of single and binary massive stars. These important stellar
Aerts, Conny
core   +2 more sources

Eclipsing binary stars in the Large Magellanic Cloud. Results from the EROS-2, OGLE and VMC surveys ⋆ [PDF]

open access: yes, 2014
We present a catalogue of 1768 eclipsing binary stars (EBs) detected in the Large Magellanic Cloud (LMC) by the second generation of the EROS survey (hereinafter EROS-2); 493 of them are new discoveries located in outer regions (out of the central bar ...
T. Muraveva   +12 more
semanticscholar   +1 more source

The eclipsing binary star RZ Cassiopeiae [PDF]

open access: yesAstronomy & Astrophysics, 2008
Aims. We test the hypothesis that the oEA star RZ Cas has undergone a transient phase of rapid mass-transfer in 2000/2001. Methods. We analyze a time series of high-resolution spectra of RZ Cas obtained in 2001 and in 2006 for radial velocity (RV) and line profile variations.
H. Lehmann, D. E. Mkrtichian
openaire   +1 more source

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