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Runaway anti-matter production makes for a spectacular stellar explosion

4 Enero 2010

University of Notre Dame astronomer Peter Garnavich and a team of collaborators used the NSF’s 4-m Blanco telescope in Cerro Tololo, Chile to discover a distant star that exploded when its center became so hot that matter and anti-matter particle pairs were created. The star, dubbed Y-155, began its life around 200 times the mass of the sun but probably became “pair-unstable” and triggered a runaway thermonuclear reaction that made it visible nearly halfway across the universe.

Garnavich and his collaborators discovered the exploding star during the ESSENCE supernova search, a six-year NOAO Survey Program, that identified more than 200 weaker stellar explosions.

Enlaces

• University of Notre Dame Press release