Radio and X-ray data on four old Type IIn supernovae show mass-loss rates 1-2 orders of magnitude below optical estimates, indicating rapidly evolving progenitor winds over the final centuries before explosion.
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6 Pith papers cite this work. Polarity classification is still indexing.
6
Pith papers citing it
years
2026 6verdicts
UNVERDICTED 6representative citing papers
SN 2019vxm is a luminous, long-lived Type IIn supernova showing early flash-ionization features, a power-law bolometric light curve, and mid-IR dust formation, with a progenitor mass-loss rate lower limit of at least 0.01 solar masses per year.
Multi-wavelength observations of SN 2019vxm trace three phases of shock interaction in a Type IIn supernova, estimating CSM mass of 3-8 solar masses and ejecta mass of ~3.88 solar masses with late-time dust signatures.
New observations of SN 2024dy show carbon dust formation with mass ~10^{-5} M_sun inferred from NIR excess and asymmetric H-alpha profile in a long-lived Type IIn supernova.
Long-term multi-band photometry of SN 2019vxm shows initial thick CSM interaction, photosphere decoupling at 80-100 days, long-lasting dust emission, and a possible outer CSM rebrightening, implying a massive progenitor with extreme pre-explosion mass loss.
SN 2025ngs is a short-plateau supernova resembling SN 1998S but fainter, with spectral evidence for interaction with a proximate ring-like circumstellar medium around a supergiant progenitor.
citing papers explorer
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SN 2019vxm: A luminous and long-lived Type IIn supernova with early flash-ionisation features
SN 2019vxm is a luminous, long-lived Type IIn supernova showing early flash-ionization features, a power-law bolometric light curve, and mid-IR dust formation, with a progenitor mass-loss rate lower limit of at least 0.01 solar masses per year.
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The Eye of Sauron in SN 2025ngs: a Short-plateau Cousin of SN 1998S with Evidence for a Ring-like Circumstellar Medium
SN 2025ngs is a short-plateau supernova resembling SN 1998S but fainter, with spectral evidence for interaction with a proximate ring-like circumstellar medium around a supergiant progenitor.