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neutron star

neutron star

14 7.4
A very small, very heavy star made almost entirely of neutrons
  • noun
  • /ˈnjuːtrɒn stɑːr/
  • Specialized
translation icon : estrella de neutrones
  • Appearing as highly regular pulsed point sources, pulsars are spinning, city-sized neutron stars left behind by supernovae.
  • neutron stars and black holes
  • neutron stars called pulsars
  • Rotating neutron stars

Seriously, it's so dense that a teaspoon of neutron star will be about a billion tons.

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Examples

  • And that's because the neutron stars are quieter.

  • However, it was soon realized that they are produced by very rapidly rotating neutron stars.

    Academic text (1991)
  • And now let me remind you that the mass of a neutron star has to be less than three times the mass of the sun.

  • One might think that neutron stars would be very hard to detect.

    Academic text (1991)
  • But not all neutron stars disappear so quietly.

  • Under the right conditions, we can detect neutron stars when they show themselves as pulsars.

    Academic text (1990)
  • Seriously, it's so dense that a teaspoon of neutron star will be about a billion tons.

  • Because they produce these bursts that come from the surface of the neutron star, or they produce regular pulsations.

  • A featured scientist figuratively dropped a marshmallow onto a neutron star, liberating tons of hypothetical energy.

  • A neutron star is incredibly dense, often packing more mass than the sun into a small volume.

How Dense

black hole
  • Specialized
162 5.1
neutron star
  • Specialized
14 7.4
white dwarf
  • Specialized
5 7.5

Surface Forms

neutron star singular
neutron stars plural

Morphology

neutron + star

The compound literally names a star composed of neutrons, so a learner who knows 'neutron' (neutral particle) and 'star' (celestial body) can infer it refers to a type of star made of neutrons. While full astrophysical details (formation, extreme density) are technical, the core compositional meaning is immediately derivable and mirrored across languages, making it transparent.

Etymology

Neutron star gets its name from what it is: when a very big star dies it is crushed so hard that atoms fall apart and only tiny particles called neutrons remain, making a very small, very heavy star. So, the name shows that a 'neutron star' is a star that is tiny in size but very heavy for its size.