Late-time JWST spectra of SN 2023xgo detect cool silicate or carbonaceous dust masses of order 0.01-0.03 solar masses plus narrow He I emission indicating ongoing circumstellar interaction at +377 days.
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5 Pith papers cite this work. Polarity classification is still indexing.
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Population synthesis from binary evolution models predicts periodic neutron star-companion interactions in more than half of surviving hydrogen-poor core-collapse supernovae, with periods peaking at 20-50 days and lasting 0.5-10 years.
SCAT DR1 delivers 1810 spectra of 1330 transients with classifications, fitted light curves, new redshifts for many host galaxies, and host properties as a testbed for photometric classification pipelines.
Numerical simulations find that off-center carbon burning in accreting CO white dwarfs produces substantial Si and S abundances that depend on initial carbon content, supporting the double WD merger scenario for SN 2021yfj-like events.
Late-time data on SN 2017dio yield mass-loss rates of ~0.2 M_sun/yr peak and ~0.06 typical, with H-rich CSM from a companion and dust masses 0.001-0.02 M_sun, indicating sudden mass-loss increase.
citing papers explorer
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Neutron star-companion interaction in core collapse supernovae. Population synthesis based on detailed binary evolution models
Population synthesis from binary evolution models predicts periodic neutron star-companion interactions in more than half of surviving hydrogen-poor core-collapse supernovae, with periods peaking at 20-50 days and lasting 0.5-10 years.
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Elemental Abundances from Off-center Carbon Burning in Accreting CO White Dwarfs: Implications for SN 2021yfj-like events
Numerical simulations find that off-center carbon burning in accreting CO white dwarfs produces substantial Si and S abundances that depend on initial carbon content, supporting the double WD merger scenario for SN 2021yfj-like events.