neutron star


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neutron star

n.
A celestial body having a mass of 1.4 to 2.1 solar masses contained within a radius of only about 10 kilometers (6 miles), formed when a massive star collapses with sufficient energy to force all of its electrons into the nuclei that they orbit, where they react with protons, leaving only neutrons. Neutron stars are powerful sources of radio waves and x-rays.

neutron star

n
(Astronomy) a star that has collapsed under its own gravity to a diameter of about 10 to 15 km. It is composed mostly of neutrons, has a mass of between 1.4 and about 3 times that of the sun, and a density in excess of 1017 kilograms per cubic metre

neu′tron star`



n.
an extremely dense, compact star composed primarily of neutrons, esp. the collapsed core of a supernova.
[1934]

neutron star

A celestial object consisting of an extremely dense mass of neutrons, formed by the forcing together of protons and electrons in the collapse of a massive star. Most neutron stars rotate very rapidly. Many have powerful magnetic fields that focus radio waves, light, and other radiation into two beams that point outward from the magnetic poles. See more at star.

neutron star

The smallest but densest kind of star, apparently resulting from a supernova explosion that compressed the star’s particles into subatomic neutrons. A neutron star 15 mi (25 km) across can equal the Sun’s mass.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.neutron star - a star that has collapsed under its own gravity; it is composed of neutrons
pulsar - a degenerate neutron star; small and extremely dense; rotates very fast and emits regular pulses of polarized radiation
star - (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
Translations
Neutronenstern
neutronitähti
stella neutronica
neutronstjärna
References in periodicals archive ?
PSR J1023+0038 contains an extremely dense type of star astronomers call a neutron star, in a close orbit with another, more normal star nearby.
Densities in neutron star cores can reach up to ten times the density of a normal atomic nucleus, and the stabilizing effect of gravitational confinement permits long-timescale weak interactions.
The recent measurement for the Shapiro delay of light from a binary millisecond pulsar has discovered a neutron star with a mass of about two solar masses [4]; and other measurements have found the radii of some neutron stars to be less than 10 km [5-7].
Alternatively, the neutron star might be shot out of the supernova into its companion.
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.
It has been found that more than half of these pulsars have stellar partners, signifying that interaction with a normal star can revive a slower, older neutron star, according to astronomers.
WASHINGTON (CyHAN)- A pulsar is a neutron star that emits beams of radiation that sweep through Earth's line of sight.
As the name suggests, X-ray binaries are star systems made up of two parts: a compact stellar remnant -- either a neutron star or a black hole; and a companion star -- a normal star like our sun.
A neutron star is the compressed core left behind when a star weighing less than about 30 times the sun's mass explodes as a supernova.
Astronomers using the National Science Foundation's Green Bank Telescope (GBT) have discovered the most massive neutron star yet found, a discovery with strong and wide-ranging impacts across several fields of physics and astrophysics.
What remains is either a neutron star, a cinder of atomic nuclei so dense that one teaspoonful weighs a billion tons, or a black hole - a knot of concentrated gravity from which not even light can escape.
Theory predicts this could be a neutron star -one teaspoonful of which weighs a billion tons -or a black hole, which is so dense nothing can escape its gravity, not even light.