We observed the field of the AT2018cow-like source AT2024aehp (AstroNote 2024-38) with the Arcminute Microkelvin Imager - Large Array (AMI-LA). We carried out 4 observations up to ~100 days after optical discovery, which resulted in null detections with 3-sigma upper limits of ~0.2 mJy. Following the reported radio detections with the VLA at C,X and Ku bands (AstroNote 2025-99), we carried out additional observations with AMI-LA at 15.5 GHz. We detected a source with a flux density of ~0.639 mJy at 149 days after optical discovery.
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.
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