One type of them peaks at an absolute magnitude of -19.3, which enables it to be used as a standard candle.
The two major classes of these events are divided based on the presence of Balmer lines in their spectra. One type of them peaks at an absolute magnitude of -19.3, which enables it to be used as a standard candle. While that type, 1a, results from the detonation of a white dwarf which exceeded the Chandrasekhar limit, the more common type results from the core collapse of a very massive star. For 10 points, name these extremely luminous astronomical explosions.
The two major classes of these events are divided based on the presence of Balmer lines in their spectra.
supernovae