Results 51 to 60 of about 56,963 (291)

Hidden Companions Detected by Asteroseismology. I. Two Kepler Field Non-Eclipsing Binaries

open access: yesUniverse, 2022
The Kepler space telescope has detected a large number of variable stars. We summarize 2261 δ Scuti and hybrid variables in the literature, and perform time-frequency analysis on these variable stars. Two non-eclipsing binary systems, KIC 5080290 and KIC
Ming Yang
doaj   +1 more source

Kepler Eclipsing Binary Stars. VI. Identification of Eclipsing Binaries in the K2 Campaign 0 Data-set [PDF]

open access: yes, 2015
The original {\it Kepler} mission observed and characterized over 2400 eclipsing binaries in addition to its prolific exoplanet detections. Despite the mechanical malfunction and subsequent non-recovery of two reaction wheels used to stabilize the ...
D. LaCourse   +17 more
semanticscholar   +1 more source

The Amateur and Eclipsing Binary Stars [PDF]

open access: yesInternational Astronomical Union Colloquium, 1988
Probably no other branch of science has benefited as much from the work of dedicated amateurs as has the science of Astronomy. While some amateurs have made many useful types of astronomical observations– comets, meteors, occultations, etc. – perhaps none has been as extensive and as useful as those made in the field of variable stars.
openaire   +2 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 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

Turbulence in the Atmospheres of Eclipsing Binary Stars [PDF]

open access: yesInternational Astronomical Union Colloquium, 1980
Abstract:A review of the orbits and dimensions of the ζ Aurigae systems is given, based on photometric and spectrographic observations. The Ca II K-line has been studied intensively to determine the extent and uneven structure of the chromospheres of these stars; the multiple structure of this line observed at several eclipses confirms the presence of ...
openaire   +2 more sources

Photometric Observations of Eccentric Accretion in Algol-type Binary Stars [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2012
Some Algol-type interacting binary stars exhibit strange photometric variations that can be phase-dependent and/or secular. This paper discusses the possibility of explaining these observed variations as resulting from an accretion structure eclipsing ...
Phillip A. Reed
doaj   +1 more source

Calibrating convective-core overshooting with eclipsing binary systems. The case of low-mass main-sequence stars [PDF]

open access: yes, 2016
In a robust statistical way, we quantify the uncertainty that affects the calibration of the overshooting efficiency parameter $\beta$ that is owing to the uncertainty on the observational data in double-lined eclipsing binary systems.
G. Valle   +3 more
semanticscholar   +1 more source

The massive multiple system HD 64315 [PDF]

open access: yes, 2017
The O6 Vn star HD 64315 is believed to belong to the star-forming region known as NGC 2467, but previous distance estimates do not support this association.
Evans, C. J.   +6 more
core   +5 more sources

The Mass and Angular Momentum Relation of Eclipsing Binaries [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1998
With a total 3780 eclipsing binary system in the Catalogue of Approximate Photometric and Absolute Elements of Eclipsing Variable Stars by Svechnikov & Kuznetsova (1990), the empirical relations between the systemic mass and orbital angular momentum have
Kyu-Dong Oh
doaj  

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