2024
DOI: 10.1051/0004-6361/202348679
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Searching for precursor activity of Type IIn supernovae

A. Reguitti,
G. Pignata,
A. Pastorello
et al.

Abstract: We conducted a search for luminous outbursts prior to the explosion of Type IIn supernovae (SNe IIn). We built a sample of 27 objects spectroscopically classified as SNe IIn and all located at $z<0.015$. Using deep archival SN fields images ---taken up to nearly 20 years prior to the SN explosions themselves--- from transient surveys (PTF, ZTF, DES and CHASE) and major astronomical observatories (European Southern Observatory, ESO and National Optical Astronomy Observatory, NOAO), we found at least one outb… Show more

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