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Serendipitous detection of the dusty Type IIL SN 1980K with JWST/MIRI
Szanna Zsíros, Tamás Szalai, Ilse De Looze +39
We present mid-infrared (mid-IR) imaging of the Type IIL supernova (SN) 1980K with the James Webb Space Telescope (JWST) more than 40 yr post-explosion. SN 1980K, located in the ne…
Characterizing the Rapid Hydrogen Disappearance in SN2022crv: Evidence of a Continuum between Type Ib and IIb Supernova Properties
Yize Dong, Stefano Valenti, Chris Ashall +52
We present optical and near-infrared observations of SN~2022crv, a stripped envelope supernova in NGC~3054, discovered within 12 hrs of explosion by the Distance Less Than 40 Mpc S…
The SN 2023ixf Progenitor in M101: II. Properties
Schuyler D. Van Dyk, Sundar Srinivasan, Jennifer E. Andrews +12
We follow our first paper with an analysis of the ensemble of the extensive pre-explosion ground- and space-based infrared observations of the red supergiant (RSG) progenitor candi…
The SN 2023ixf Progenitor in M101: I. Infrared Variability
Monika D. Soraisam, Tamás Szalai, Schuyler D. Van Dyk +6
Observational evidence points to a red supergiant (RSG) progenitor for SN 2023ixf. The progenitor candidate has been detected in archival images at wavelengths (>0.6 micron) where…
SN 2022acko: the First Early Far-Ultraviolet Spectra of a Type IIP Supernova
K. Azalee Bostroem, Luc Dessart, D. John Hillier +41
We present five far- and near-ultraviolet spectra of the Type II plateau supernova, SN 2022acko, obtained 5, 6, 7, 19, and 21 days after explosion, all observed with the Hubble Spa…
Identifying the SN 2022acko progenitor with JWST
Schuyler D. Van Dyk, K. Azalee Bostroem, WeiKang Zheng +17
We report on analysis using the James Webb Space Telescope (JWST) to identify a candidate progenitor star of the Type II-plateau supernova SN 2022acko in the nearby, barred spiral…
JWST Discovery of Dust Reservoirs in Nearby Type IIP Supernovae 2004et and 2017eaw
Melissa Shahbandeh, Arkaprabha Sarangi, Tea Temim +36
Supernova (SN) explosions have been sought for decades as a possible source of dust in the Universe, providing the seeds of galaxies, stars, and planetary systems. SN 1987A offers…