Definition

1. Noun:
   • A collapsed stellar remnant: A neutron star is an extremely dense celestial object that forms from the gravitational collapse of a massive star's core after a supernova explosion. It is composed almost entirely of neutrons.

Usage

• Scientific Context: Used in astronomy and astrophysics to describe a specific type of compact star.
  • The pulsar at the center of the Crab Nebula is a rotating neutron star.
  • Scientists study neutron stars to understand the behavior of matter under extreme density.

Advanced Usage

• "Neutron star merger": Refers to the collision of two neutron stars, a cataclysmic event that can produce gravitational waves and heavy elements.
  • The observation of a neutron star merger confirmed theories about the origin of gold.

Variants and Related Words

• Pulsar (n): A highly magnetized, rotating neutron star that emits beams of electromagnetic radiation.
  • A pulsar is a type of neutron star that appears to pulse from Earth's perspective.

Synonyms

• Compact star: A general term for stellar remnants like white dwarfs, neutron stars, and black holes.
• Stellar remnant: The leftover core of a star after it has exhausted its nuclear fuel.

Related Phrases

• "Neutron star equation of state": A theoretical model describing the relationship between the pressure and density inside a neutron star.
  • Determining the neutron star equation of state is a major goal in nuclear astrophysics.

Noun

1. a star that has collapsed under its own gravity; it is composed of neutrons