Which class of supernovae can significantly surpass the standard Type Ia peak luminosity, sometimes reaching absolute magnitudes of -21 or brighter?

Answer

Superluminous supernovae (SLSNe)

Superluminous supernovae (SLSNe) are outliers that considerably exceed the luminosity of standard Type Ia events, sometimes reaching absolute magnitudes of -21 or even fainter (brighter).

Which class of supernovae can significantly surpass the standard Type Ia peak luminosity, sometimes reaching absolute magnitudes of -21 or brighter?
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