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Radio non-detection of nearby Type Ia SN 2026ahvu

ATel #18151; Yvette Cendes (University of Oregon), Kate D. Alexander (University of Arizona), Tanmoy Laskar (University of Utah), Maria Drout (University of Toronto), Adelle Goodwin (Curtin University)
on 11 Nov 2026; 00:45 UT
Credential Certification: Yvette Cendes (yncendes@uoregon.edu)

Subjects: Radio, Supernovae, Transient

We report a radio observation with the MeerKAT radio telescope of the nearby Type Ia SN 2026ahvu (z=0.003589; ~9 Mpc), discovered by ATLAS in NGC 1433 on MJD = 61346.18 (2026-11-02.18). It was observed by MeerKAT at 1.5 GHz from 2026-11-07 03:54:53 UTC to 2026-11-07 05:16:05 UTC (4.982 days post-discovery). No compact emission was detected, and we report a 3-sigma upper limit of <0.22 mJy, or a luminosity of <2.16x10^25 erg/s/Hz.

Further radio observations are being coordinated. We thank the MeerKAT Observatory for their prompt observation of this source.