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135 papers
Radiative-transfer models for dusty Type II supernovae
Luc Dessart, D. John Hillier, Arkaprabha Sarangi
Dust is expected to form on a year timescale in core-collapse supernova (SN) ejecta. Its existence is revealed through an infrared brightening, an optical dimming, or a blue-red em…
The long-term influence of a magnetar power in stripped-envelope supernovae. Radiative-transfer modeling of He-star explosions from 1 to 10 years
Luc Dessart
Much interest surrounds the nature of the compact remnant formed in core collapse supernovae (SNe). One means to constrain its nature is to search for signatures of power injection…
Carbon Monoxide Cooling in Radiative Transfer Modeling of Supernovae
Collin McLeod, D. John Hillier, Luc Dessart
Carbon monoxide (CO) emission has been observed in a number of core-collapse supernovae (SNe) and is known to be an important coolant at late times. We have implemented a chemical…
The evolution of continuum polarization in Type II supernovae as a diagnostic of ejecta morphology
Luc Dessart, D. John Hillier, Douglas C. Leonard
Linear polarization of the optical continuum of type II supernovae (SNe), together with its temporal evolution, is a promising source of information on the large-scale geometry of…
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…
Very late-time spectroscopy of SN 2009ip: Constraints on the ongoing H emission
Thallis Pessi, Jose L. Prieto, Luc Dessart
The peculiar supernova (SN) 2009ip is an ambiguous event that spurred many questions regarding its true origins. Here, we present very late-time spectroscopic and photometric obser…