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Lawrence Berkeley National Laboratory

Supernovae of the Same Brightness, Cut From Vastly Different Cosmic Cloth

23 Aug 2012, 18:00 UTC
Supernovae of the Same Brightness, Cut From Vastly Different Cosmic Cloth BJ Fulton, Las Cumbres Observatory Global Telescope Network

The multi-institutional Palomar Transient Factory (PTF) team presents the first-ever direct observations of a Type 1a supernova progenitor system. Astronomers have collected evidence indicating that the progenitor system of a Type 1a supernova, called PTF 11kx, contains a red giant star. They also show that the system previously underwent at least one much smaller nova eruption before it ended its life in a destructive supernova.

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