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Astronomy Colloquium
"Gamma-rays from Type Ia supernova SN2014J "
Date: Thursday, April 23rd
Time: 3:45 pm
Place: 4421 Sterling hall
Speaker: Eugene Churazov, MPA Garching
Abstract:
Supernova SN2014J in M82 is the first type Ia supernova, which was close enough to allow robust detection of gamma-ray lines associated with the decay chain Ni56->Co56->Fe56. INTEGRAL observations provide constraints on the total mass of the Ni56 synthesized during explosion, on the released energy, on the mass of the progenitor and on the annihilation of positrons, produced by the Co56 decay. We discuss the implications of these observations for SNIa models and compare results with the predictions of different Type Ia scenarios.
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