DRAFT
2026-03-26 00:31:45
Type: Object/s-Discovery/Classification
Bibcode: 2026TNSAN..84....1D
Classification of LSST Transient 2026euq (LSST-P-DO-313963406691402058)
Authors: Yize Dong (Harvard/CfA), V. Ashley Villar (Harvard/CfA), Danielle Frostig(Harvard/CfA), Anya Nugent (Harvard/CfA), S. Karthik Yadavalli (Harvard/CfA), Alex Gagliano (Harvard/CfA), Kaylee de Soto (Harvard/CfA)
Source Group: VHU-TDA
Keywords: Spectroscopy, Transient, Supernova, Optical
Abstract:
We report the classification of 2026euq (LSST-P-DO-313963406691402058) as a Type Ib supernova at z ~ 0.26.

2026euq (Rubin object ID 313963406691402058) was first reported to TNS by SGLF on 2026-03-02 as an SN candidate from the public LSST alerts. An optical spectrum was obtained with LDSS3 on Magellan Clay on 2026-03-22. The classification was performed using SNID-SAGE(F. Stoppa 2025), and the best match was found to be a Type Ib supernova at redshift ~0.26. At this redshift, the object would have a peak absolute magnitude of around -18, consistent with normal Type Ib supernovae.

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 2026euq [LSST-P-DO-313963406691402058] 09:55:20.981 +03:12:45.99 SN Ib 0.26 SDSS J095520.96+031245.4 09:55:20.981 +03:12:45.99 SN Ib 0.26

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