Across the cosmos, two main pathways exist for supernova formation: core collapse of massive stars and thermonuclear explosions of white dwarfs through mergers or accretion.
Within our galaxy, only ten supernovae have been observed in the past 2000 years, with one candidate from 1843 later identified as an impostor.
A new candidate remnant, Pa 30, found in 2013, exhibits properties consistent with SN 1181 and features an unusual central intact white dwarf.
The double degenerate merger of low-luminosity type Iax explosion highlights the complex origins of supernovae and challenges established theories on stellar evolution.
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