DRAFT
2026-07-29 10:08:42
Type: Object/s-Discovery/Classification
Classification of the transient 2026plb/ZTF26abbwmoo as a SN type IIn
Authors: Amalija Rafaj Škriljevečki (Graz University of Technology, University of Graz), Eduardo Concepcion (Center for Astrophysics and Cosmology)
Keywords: Transient, Supernova
Abstract:
We report the classification of the bright nuclear transient 2026plb/ZTF26abbwmoo as a SN type IIn.

We report the classification of the transient 2026plb/ZTF26abbwmoo (2026TNSTR2576....1R) using spectroscopic data obtained with SPRAT at the Liverpool Telescope on 2026-07-24 at 23:42:00 UTC. Following the analysis done with SNID-SAGE (Stoppa & Smartt, 2026), the spectrum of the transient matches best the sn2013fc template at age 97.0 d and redshift 0.030. In the identification report (#2026-229), the spectrum of the transient was described as featureless. Our follow-up observations show that the spectrum now exhibits prominent, narrow H\alpha and H\beta emission lines, and absorption component on the blue side of H\alpha, characteristic for SNe type IIn spectra (Gutiérrez et al. 2017). The transient currently has the apparent magnitude 17 in g band (ZTF). We encourage further photometric and spectroscopic follow-up.

Show current TNS values
Catalog Name Reported RA Reported DEC Reported Obj-Type Reported Redshift Host Name Host Redshift Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2026plb [ZTF26abbwmoo] 20:56:47.260 -18:31:04.49 SN IIn 0.03 20:56:47.260 -18:31:04.49 SN IIn 0.03
File Comments
spectrum_tns_2026plb_0.ascii

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