We report the detection of radio emission from the nearby supernova in M100, SN2020oi (TNS report 58241; ATel #13393; ATel #13391; ATel #13398; TNS AstroNote 2020-8; TNS AstroNote 2020-9).
The Jansky Very Large Array (VLA) undertook a second public observation of SN2020oi on 2020 January 11. The observation was conducted at 44 GHz (Q-band) in the D configuration. We performed an analysis of the data using the 3C286 as a flux calibrator and J1215+1654 as a gain calibrator.
A single point source is detected in the VLA image at RA=12:22:54.917 Dec=15:49:25.01 (consistent with the position of SN2020oi) at a flux level of ~5 mJy. This confirms the possible detection we previously reported at a lower frequency of 8 GHz in an image with a lower spatial resolution (ATel #13398; TNS AstroNote 2020-9).
We encourage further high cadence multi-frequency radio observations with the VLA and other facilities.
We thank the VLA and NRAO staff for scheduling and performing this public 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 | 2020oi [ZTF20aaelulu] | 12:22:54.925 | +15:49:25.05 | SN Ic | 0.005 | MESSIER 100 | 0.00524 | 12:22:54.930 | +15:49:24.96 | SN Ic | 0.0052 |
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