We observed the field of the type IIb SN 2023mut (TNS report 182114) with the Arcminute Microkelvin Imager - Large Array (AMI-LA) for 4 hours on the 2023-07-18, with a central frequency of 15.5 GHz. A point source is detected in the AMI-LA image at RA = 04:48:34.31 +/- 0.05 s, Dec = +00:14:47.21 +/- 2.64 arcsec, consistent with the reported position of SN 2023mut. The source is detected at a flux density of 46 +/- 2 mJy.
Past pre-discovery radio observation of the field of SN 2023mut were performed by the VLA Sky Survey (VLASS) on the 2023-03-01 (epoch 3.1), at a central frequency of 3 GHz. The VLASS image of the field of SN 2023mut show no emission from the reported position with a 3-sigma rms of 0.4 mJy.
We plan to perform follow-up observations with the AMI-LA, and encourage further high-cadence multi-frequency radio observations with other facilities.
We thank the staff of MRAO for scheduling and performing this observation.
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 | 2023mut | 04:48:34.348 | +00:14:48.27 | SN IIb | 0.0022 | UGC 03174 | 0.002238 | 04:48:34.348 | +00:14:48.31 | SN IIb | 0.0022 |
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