Assertion: ia supernova | /r/HasProperty | discovered in nearby galaxy
Facets:
value: by ptf
type: OTHER
Source sentences:
text: In fact, observations in 2011 of SN2011fe, another Type Ia supernova discovered in the nearby galaxy Messier 101 by PTF (the precursor to the iPTF), appeared to rule out the single-degenerate model for that particular supernova.