The supernovas being studied belong to a class known as Type Ia.
If the N atoms are in pairs or larger aggregates, they do not affect the diamond's color; these are Type Ia.
Type Ia and Ib diamonds absorb in both the infrared and ultraviolet region of the electromagnetic spectrum, from 320 nm.
Type Ia is inherited in an autosomal dominant manner.
The description sounds very much like a Type Ia because both are from binary systems with a white dwarf accumulating material from its companion star.
For cosmology, the exploding stars of choice are known as Type Ia.
His contribution was to show how to correct for the fact that the Type Ia's were not quite as uniform as General Electric light bulbs after all.
(Type ia, Group 2C gases, Temperature category 4).
This description is often taken as probable evidence that the supernova was of Type Ia.
SN1993z is the only supernova known to have occurred in NGC 2775 and was a Type Ia with a peak magnitude of 13.9.