Astronomers confirm SN 1181 as rare Type 1ax supernova with unique remnant

Astronomers have confirmed that the supernova observed in 1181, known as SN 1181, was a rare Type 1ax event. This explosion left behind a unique remnant called Pa 30, which features a "zombie" star and strange gas filaments resembling dandelion petals. Recent research published in *The Astrophysical Journal Letters* provides new insights into Pa 30's structure and behavior. Using advanced imaging technology, scientists found that the filaments are asymmetrical and exhibit varying speeds, suggesting a complex explosion mechanism. The study indicates that the remnants of SN 1181 are unlike typical supernova remnants, which usually leave behind black holes or neutron stars. The findings raise new questions about the nature of the explosion and the characteristics of the white dwarf that caused it.