A massive stellar burst, before the supernova
Wednesday, February 6, 2013 - 13:30
in Astronomy & Space
Astronomers have found the first causal evidence that massive stars shed huge amounts of material in a "penultimate outburst" before they finally detonate as Type IIn supernovae. After characterizing supernova 2010mc, the scientists found evidence of previous outbursts in the same location and were able to conclusively relate them to the supernova explosion.