SN2023fyq: A Type Ibn Supernova With Long-standing Precursor Activity Due to Binary Interaction

Yize Dong, Daichi Tsuna, Stefano Valenti +29

We present photometric and spectroscopic observations of SN 2023fyq, a type Ibn supernova in the nearby galaxy NGC 4388 (D$\simeq$18~Mpc). In addition, we trace long-standing precu…