Synthetic observables from tECSN models show slower early red-color decline due to higher Ti/Cr and a late-time 12.8 μm Ne II line that strengthens over time, unlike comparable CO deflagration models.
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Nebular spectroscopy of low-luminosity Type IIP SNe from ZTF identifies two plausible ECSN candidates but derives an upper limit on the ECSN rate of ≲(5–8)×10² Gpc⁻³ yr⁻¹ implying a sAGB mass window narrower than 0.06 M⊙.
Multi-dimensional simulations of a low-mass iron-core supernova remnant find that neutron-star wind and decay heating create large-scale asymmetric ejecta whose projected morphology and velocities depend strongly on viewing angle, with 24.4% of heating from non-Ni-56 chains and overall properties su
SN 2020aze displays early He II emission from ejecta-CSM interaction, a steep V-band decline, and semi-analytical modeling yields a ~14 solar-mass red supergiant progenitor with ~12 solar-mass ejecta and 1.5e51 erg explosion energy.
SN 2024abfl is a sub-luminous Type IIP event from a compact progenitor exploding with energy at most 0.05 foe and nickel mass 0.003 solar masses.
citing papers explorer
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Observational signatures of thermonuclear electron-capture supernovae -- Ne II line strengthening and color evolution as traces of the explosion mechanism
Synthetic observables from tECSN models show slower early red-color decline due to higher Ti/Cr and a late-time 12.8 μm Ne II line that strengthens over time, unlike comparable CO deflagration models.
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Low-Luminosity Type IIP Supernovae from the Zwicky Transient Facility Census of the Local Universe. III: Hunting for electron-capture supernovae using nebular spectroscopy
Nebular spectroscopy of low-luminosity Type IIP SNe from ZTF identifies two plausible ECSN candidates but derives an upper limit on the ECSN rate of ≲(5–8)×10² Gpc⁻³ yr⁻¹ implying a sAGB mass window narrower than 0.06 M⊙.
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Simulation to a Newborn Supernova Remnant from a Low-mass Iron Core Star
Multi-dimensional simulations of a low-mass iron-core supernova remnant find that neutron-star wind and decay heating create large-scale asymmetric ejecta whose projected morphology and velocities depend strongly on viewing angle, with 24.4% of heating from non-Ni-56 chains and overall properties su
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Early interaction signatures and an extended plateau phase in Type II SN 2020aze
SN 2020aze displays early He II emission from ejecta-CSM interaction, a steep V-band decline, and semi-analytical modeling yields a ~14 solar-mass red supergiant progenitor with ~12 solar-mass ejecta and 1.5e51 erg explosion energy.
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Sub-luminous Type IIP SN 2024abfl as a result of a significantly low energy Fe-core collapse
SN 2024abfl is a sub-luminous Type IIP event from a compact progenitor exploding with energy at most 0.05 foe and nickel mass 0.003 solar masses.