Assertion: supernova | /r/HasAspect | stellar companion
Facets:
value: to the white dwarf progenitor
type: OTHER
Source sentences:
text: The final clue that led the researchers to conclude that in this case there had been a merger of two white dwarfs was that this supernova, about 7,000 light years from Earth, has no stellar companion to the white dwarf progenitor.