nov 202012
 
Most Peculiar Supernovae Explained by Failed Explosions

  Supercomputer simulations have revealed that a type of oddly dim, exploding star is probably a class of duds—one that could nonetheless throw new light on the mysterious nature of dark energy. A collaboration led by George Jordan at the University of Chicago’s Flash Center for Computational Science has conclusively demonstrated a connection between white [continue reading]

sep 172012
 
Supernovae Now Counted

  Almost one in five exploding stars in nearby galaxies is simply not seen, astronomers have determined. For galaxies further out, that fraction doubles. This finding clears the way for these stellar beacons to be used as a good measure of how fast galaxies made stars earlier in the Universe’s history. Key evidence for this “body count” [continue reading]

aug 232012
 
Halo of Neutrinos Alters Physics of Supernovae

  Sparse halos of neutrinos within the hearts of exploding stars exert a previously unrecognized influence on the physics of the explosion and may alter which elements can be forged by these violent events. The titanic supernova, called SN 1987A, blazed with the power of 100 million suns for several months following its discovery on [continue reading]