Supernova SN 2023fyq exhibited long-lasting pre-explosion activity, observations show

An international team of astronomers have performed photometric and spectroscopic observations of a Type Ibn supernova, known as SN 2023fyq. Results of the observations campaign, published May 7 on the pre-print server arXiv, indicate that the supernova experienced a long-lasting precursor activity, including pre-explosion outbursts.