Assertion: pulsar | /r/HasProperty | collapsed core of this star
Facets:
Source sentences:
text: The pulsar is the collapsed core of this star, rotating with a period of 89 milliseconds or about 11 times a second.
text: Some radio pulsars are associated with supernova remnants, and it is generally accepted that pulsars are the collapsed cores of stars that were once more massive than 6-10 times the mass of the Sun.
text: The pulsar (a so-called neutron star) is the collapsed core of this star, rotating with a period of 89 milliseconds or about 11 times a second.