Probing the soft X-ray properties and multi-wavelength variability of SN2023ixf and its progenitor

Abstract

We present a detailed analysis of nearly two decades of optical/UV and X-ray data to study the multi-wavelength pre-explosion properties and post-explosion X-ray properties of nearby SN2023ixf located in M101. We find no evidence of precursor activity in the optical to UV down to a luminosity of 1.0 × 105 L⊙, while X-ray observations covering nearly 18 yr prior to explosion show no evidence of luminous precursor X-ray emission down to an absorbed 0.3-10.0 keV X-ray luminosity of ∼6 × 1036 erg s-1. Extensive Swift observations taken post-explosion did not detect soft X-ray emission from SN2023ixf within the first ∼3.3 days after first light, which suggests a mass-loss rate for the progenitor ..