Two Decades of Dust Evolution in SN 2005af through JWST, Spitzer, and Chemical Modeling
Abstract
The evolution of dust in core-collapse supernovae (SNe), in general, is poorly constrained owing to a lack of infrared observations after a few years from explosion. Most theories of dust formation in SNe heavily rely only on SN 1987A. In the last two years, the James Webb Space Telescope (JWST) has enabled us to probe the dust evolution in decades-old SNe, such as SN 2004et, SN 2005ip, and SN 1980K. In this paper, we present two decades of dust evolution in SN 2005af, combining early-time infrared observations with Spitzer Space Telescope and recent detections by JWST. We have used a chemical kinetic model of dust synthesis in SN ejecta to develop a template of dust evolution in SN 2005af. Moreover, using this approach, for the first time, we have separately quantified the dust formed in the pre-explosion wind that survived after the explosion, and the dust formed in the metal-rich SN ejecta post-explosion. We report that in SN 2005af, predominantly carbon-rich dust formed in the ejecta, with a total mass of at least 0.02 Msun. In the circumstellar medium, the surviving oxygen-rich dust amounts to about 0.003-0.006 Msun, yielding a total dust mass of at least 0.025 Msun.
Keywords
Cite
@article{arxiv.2504.20574,
title = {Two Decades of Dust Evolution in SN 2005af through JWST, Spitzer, and Chemical Modeling},
author = {Arkaprabha Sarangi and Szanna Zsiros and Tamas Szalai and Laureano Martinez and Melissa Shahbandeh and Ori D. Fox and Schuyler D. Van Dyk and Alexei V. Filippenko and Melina Cecilia Bersten and Ilse De Looze and Chris Ashall and Tea Temim and Jacob E. Jencson and Armin Rest and Dan Milisavljevic and Luc Dessart and Eli Dwek and Nathan Smith and Samaporn Tinyanont and Thomas G. Brink and WeiKang Zheng and Geoffrey C. Clayton and Jennifer Andrews},
journal= {arXiv preprint arXiv:2504.20574},
year = {2025}
}
Comments
Published in The Astrophysical Journal