Fading Echoes of Interaction: Probing Centuries of Preexplosion Mass Loss in Four Type IIn Supernovae

Supernovae characterized by enduring narrow optical hydrogen emission lines (SNe IIn) are believed to result primarily from the core-collapse of massive stars undergoing sustained interaction with a dense circumstellar medium (CSM). While the properties of SN IIn progenitors have relatively few dire...

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Autori principali:	Elizabeth Hillenkamp, Raphael Baer-Way, Poonam Chandra, Arkaprabha Sarangi, Roger Chevalier, Nayana A.J., Annika Deutsch, Keiichi Maeda, Nathan Smith
Natura:	Artigo
Lingua:	Inglês
Pubblicazione:	IOP Publishing 2026-01-01
Serie:	The Astrophysical Journal
Soggetti:	Core-collapse supernovae Type II supernovae Stellar mass loss Circumstellar matter X-ray transient sources Extragalactic radio sources
Accesso online:	https://doi.org/10.3847/1538-4357/ae4e22
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