June 15, 2018

The galaxies Arp 299A and Arp 299B and the tidal disruption event

An article published in the journal “Science” describes the discovery of a star destroyed by a supermassive black hole in what in jargon is called a tidal disruption event. A team of astronomers used various telescopes searching for supernovae in Arp 299, an object generated by two merging galaxies, but in one case they came to realize that the phenomenon in progress was not an explosion but the destruction of the star under observation.