The supernova SN 1987A, that exploded in the outskirts of the Tarantula Nebula (1) in the Large Magellanic Cloud (LMC) on February 23rd, 1987, was an unique a rare event that still puzzles astronomers and theoretical physicists. SN 1987A originated by the core-collapse of a very massive star, hence it was classified as a “type II” supernova (2).
SN 1987A provided astrophysicists the very first opportunity to study the behavior and evolution of a supernova in detail. Among other things, SN 1987A was the first supernova for which the progenitor star was identified on archival photographic plates, permitted the first direct observation of supernova nucleosynthesis (including accurate masses of 56Ni, 57Ni and 44Ti), the first observation of the dust in a supernova, the first detection of circumstellar and interstellar material around a supernova, and, importantly, the first detection of neutrinos coming from the core collapse of a massive stars.
Figure 1. Supernova 1987A after exploding in February 1987 (left), and an image taken before the explosion (right). Credit: David Malin / Australian Astronomical Observatory.
Commemorating the 30th anniversary of this very rare event, we at the Australian Astronomical Observatory (AAO) have published today a new media release about it. In ...