‘Lopsided’ Supernova Could Be Responsible for Rogue Hypervelocity Stars

Tauris argues that a lopsided supernova explosion may be the source of certain hypervelocity stars (image credit: IsiacDaGraca).

Tauris 2015 argues that supernova explosions occurring in tight binary systems can help eject stars from the Galaxy at hypervelocities (image credit: IsiacDaGraca).

Hypervelocity stars have been observed traversing the Galaxy at extreme velocities (700 km/s), but the mechanisms that give rise to such phenomena are still debated. Astronomer Thomas M. Tauris argues that lopsided supernova explosions can eject lower-mass Solar stars from the Galaxy at speeds up to 1280 km/s. “[This mechanism] can account for the majority (if not all) of the detected G/K-dwarf hypervelocity candidates,” he said.

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Read the rest of ‘Lopsided’ Supernova Could Be Responsible for Rogue Hypervelocity Stars (298 words)


© Dan Majaess for Universe Today, 2015. |
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