DRAFT
2023-08-04 16:34:41
Type: Announcement-General
AMI-LA radio detection of the type IIb SN 2023mut
Authors: Itai Sfaradi (HUJI), Lauren Rhodes (Oxford), Assaf Horesh (HUJI), Joe bright (Oxford), Rob Fender (Oxford), Dave Green (Cambridge), David Titterington (Cambridge)

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.

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 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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