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GCN Circular 34796

transient AT2023sva: radio observations with AMI-LA
2023-10-04T13:14:59Z (6 months ago)
Lauren Rhodes at Oxford <>
Lauren Rhodes, Rob Fender (Oxford), Dave Green, Dave Titterington (Cambridge) report:

We observed the field of the afterglow candidate AT2023sva (GCN 34730) with the Arcminute Microkelvin Imager Large-Array (AMI-LA) at 15.5 GHz beginning at UT 02:08:35 on 19-Aug-2023 for a total of 4 hours. The flux standard 3c286 was used to calibrate the bandpass response and flux scale of the AMI-LA and J0017+8135 was used as an interleaved complex gain calibrator.

We detect a unresolved source at a position consistent with the one reported in GCN 34394 with a (preliminary) peak flux density of 220uJy/beam. The rms noise in the field is 40uJy/beam. Further observations are planned.

We thank the staff at the Mullard Radio Astronomy Observatory for carrying out these observations and operating the AMI-LA.

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