LOFAR non-detections of SN 2023ixf in its first year post-explosion

TL;DR

This study used LOFAR to observe SN 2023ixf in its first year, resulting in non-detections that align with higher-frequency radio data, but do not constrain the circumstellar medium properties.

Contribution

First LOFAR observations of SN 2023ixf providing low-frequency non-detections in its early post-explosion phase.

Findings

No radio detection down to ~80 μJy at 144 MHz

Non-detections are consistent with higher-frequency radio observations

Cannot constrain circumstellar medium properties from these data

Abstract

We used the LOFAR telescope to monitor SN 2023ixf, a core-collapse supernova in M101, between 8 and 368 days post-explosion. We report non-detections down to ~80 {\mu}Jy sensitivity at 144 MHz. Our non-detections are consistent with published radio observations at higher frequencies. At the time, we are not able to constrain the properties of low-frequency absorption due to the progenitor star's circumstellar medium via these LOFAR observations.