supernovaeiden

Supernovaeiden is a fictional or hypothetical term used in speculative discussions to describe a class of stellar explosions that would combine a conventional supernova with an additional, distinct energy release mechanism occurring on timescales from days to weeks after the initial explosion. In such scenarios, the extra energy might arise from processes such as interaction with a dense circumstellar medium, energy injection from a rapidly spinning magnetar, or delayed accretion from a companion object. The concept is intended to explore how multiple energy channels could alter the observable evolution of a supernova.

Proposed characteristics of a supernovaeiden include complex, multi-peaked or protracted light curves, spectral features indicating unusual ionization states, and late-time emission that deviates from standard supernova models. The precise observational signature depends on the assumed energy source and the environment around the progenitor, making predictions highly model-dependent. Because the term is not part of formal astronomical taxonomy, its concrete criteria remain informal and vary among authors.

Status and usage: there is no independently confirmed astronomical class officially labeled as a supernovaeiden. The term largely appears in theoretical discussions, thought experiments, and some science fiction contexts to illustrate how additional energy sources could influence explosive transients beyond ordinary supernovae.

See also: supernova, hypernova, magnetar-powered supernova, light curve, transient astronomy.