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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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.
citing papers explorer
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JWST Reveals Large Reservoirs of Dust and Ongoing Circumstellar Interaction in SN Ibn/Icn 2023xgo over a Year Post-Explosion
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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Two years of shock interaction tracing three phases of evolution: the explosion of a Type IIn supernova, SN 2019vxm
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.