... matters more interesting, the companion star can be another white dwarf. In this case, a possible mechanism for triggering a Type Ia supernova is the merger of the two white dwarfs. This situation is called a double-degenerate scenario and in recent...
... with only one plausible scenario to explain it all; the merger of a white dwarf with either a neutron star or a black hole. “The explosion is likely to be the result of a merger between a white dwarf (the core of a star after it has evolved and shed...
... particularly strong and not the type usually associated with white dwarf mergers. Putting the pieces of the puzzle together, the team suggest J005311 is the merger of two white dwarfs. While this is not an uncommon event, the process normally leads...