The supernova is located in galaxy IC 831, some 300 Mly (92 Mpc) distant.
[2] The supernova's shockwave slammed into a companion star, shocking it into producing an ultraviolet pulse.
[citation needed] This detection of the UV signal represents the first time the collision event of a supernova shockwave upon a companion star has been detected.
The data was processed by collaborators in Europe, that lead to the supernova discovery.
[3] This single-degenerate white dwarf with normal star binary system represents one of two mechanisms for producing a type-Ia supernova, the other being double-degenerate two white dwarf binary stars.