A JWST study of two Type Ia supernovae finds central stable-nickel enhancements and broken-slope [Ni III] lines, favoring near-Chandrasekhar-mass delayed-detonation explosions.
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JWST Spectroscopy of SN Ia 2022aaiq and 2024gy: Evidence for Enhanced Central Stable Ni Abundance and a Deflagration-to-Detonation Transition
A JWST study of two Type Ia supernovae finds central stable-nickel enhancements and broken-slope [Ni III] lines, favoring near-Chandrasekhar-mass delayed-detonation explosions.