Neutron stars

collapsed core of a massive star consisting mainly of neutrons

maximum mass of a stable white dwarf star, approximately 1.4 solar masses

contraction of an astronomical object due to the influence of its own gravity

thumb|upright=1.4|Artist's impression of neutron stars merging, producing gravitational waves and resulting in a kilonova

upper bound to the mass of cold, nonrotating neutron stars

GW170817 was a gravitational wave (GW) observed by the LIGO and Virgo detectors on 17 August 2017, originating within the shell elliptical galaxy NGC 4993, about 140 million light years away. The wave was produced by the last moments of the inspiral of a binary pair of neutron stars, ending with their merger. It is the first GW detection to be definitively correlated with any electromagnetic observation.

star

a red giant or other such star with a neutron star as its core

star

binary star with an X-ray pulsar in the constellation Centaurus

phenomenon in astroparticle physics

Class of X-ray binary stars

pulsing, eclipsing high-mass X-ray binary in the constellation Vela

degenerate matter within the crusts of neutron stars which forms complex structures said to resemble pasta

type of stellar collision

X-ray source

surface shaking on interstellar bodies in general

X-ray telescope on the International Space Station

binary star system in the constellation Perseus

binary star system in the constellation Vela

binary star in the constellation Circinus

binary star in the constellation Hercules

neutron star in the constellation Ophiuchus

In astronomy, blitzars are a hypothetical type of neutron star, specifically pulsars that can rapidly collapse into black holes if their spinning slows down. Heino Falcke and Luciano Rezzolla proposed these stars in 2013 as an explanation for fast radio bursts.

thumb|Collapsar type based on initial mass and metallicity A collapsar is a type of black hole formed inside of a massive star that rotates at a sufficient rate to create a disk around the hole. The model for collapsars was originally developed to explain gamma-ray burst events accompanying supernovas, but the model now includes other forms. Type I collapsars form an initial neutron star but fail to go supernovae, and after a one-second delay, collapse into black holes. Type II collapsars explode, but not enough mass is ejected, and the neutron star falls back into a black hole. Type III colla

phenomenon in radio astronomy

group of isolated young cooling neutron stars

star in the constellation Cassiopeia

star in the constellation Norma

Massive neutron star

star in the constellation Volans

binary star

star in the constellation Aquila

neutron star

High-mass X-ray binary