binary star

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Related to Close binary: eclipsing binary, Binary star system

binary star

n.
A system of two stars bound together by gravity and orbiting a common center of mass, most often appearing as a single star when visible to the unaided eye. Also called double star.

binary star

n
(Astronomy) a double star system comprising two stars orbiting around their common centre of mass. A visual binary can be seen through a telescope. A spectroscopic binary can only be observed by the spectroscopic Doppler shift as each star moves towards or away from the earth. Sometimes shortened to: binary See also optical double star, eclipsing binary

bi′nary star′


n.
a system of two stars that revolve about their common center of mass.
[1875–80]

binary star

A system of two stars that orbit a common center of mass. The pair often appears as a single star to the unaided eye.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.binary star - a system of two stars that revolve around each other under their mutual gravitation
star - (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
References in periodicals archive ?
The first hypothesis is that the magnetic field is generated while the star is being formed; the second is that the magnetic field originates in dynamos driven by the violent mixing of stellar plasma when the two stars in a close binary merge.
Recently, large observing campaigns with world-class telescopes provided quantitative showing that the large majority of massive stars will interact with a close binary companion (e.
TZOs are thought to be formed by the interaction of two massive stars-a red supergiant and a neutron star formed during a supernova explosion-in a close binary system.
What may have happened is that the stars in the close binary merged into a single larger star," said the paper's lead author, Bo Reipurth of the Institute for Astronomy at the University of Hawaii at Manoa.
Among the topics are gravitational wave foreground radiation from neutron star-dwarf binaries, the chromospheric activity of late-type stars of the different rotational periods, spectrophotometry and model atmosphere flux fitting, the light-time effect and tertiary companions in close binary stars, the age of the local interstellar bubble, and the current status and outreach activities of radio astronomy in Malaysia.
A contact binary is a close binary star in which both components fill their Roche lobes.
Synthesizing of radial velocity curves of close binary systems.
Also highlighted are hydrogen-deficient stars in close binary systems, and massive Wolf-Rayet stars and their relation to Type I supernovae and Gamma-ray bursts.
That discovery suggests that close binary stars may be the best places of all to look for planets and for life on other planets.