AstroNote 2020-10

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2020-01-11 21:42:53
Type: Object/s-Data/Analysis
A VLA Radio Detection of Supernova SN2020oi
Authors: Assaf Horesh, Itai Sfaradi (HUJI)
We report the detection of radio emission from SN2020oi at 44 GHz.

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.


Show current TNS values
CatalogNameReported RAReported DECReported Obj-TypeReported RedshiftHost NameHost RedshiftRemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2020oi [ZTF20aaelulu]12:22:54.925+15:49:25.05SN Ic0.005MESSIER 1000.0052412:22:54.919+15:49:24.98SN Ic0.0052