Assertion: star's momentum | /r/HasProperty | angular
Facets:
Source sentences:
text: The neutron star retains most of its angular momentum, and since it has only a tiny fraction of its progenitor's radius (and therefore its moment of inertia is sharply reduced), it is formed with very high rotation speed.
text: In both cases, the star's moment of inertia changes, but its angular momentum does not, resulting in a change in rotation rate.