Munich, July 25 : Astronomers have indicated that a recent supernova may not be normal as initially thought, with the star that exploded now understood to have collapsed into a black hole, producing a weak jet, typical of much more violent events, the so-called gamma-ray bursts.
The object, SN 2008D, is thus probably among the weakest explosions that produce very fast moving jets.
This discovery represents a crucial milestone in the understanding of the most violent phenomena observed in the Universe.