44Ti Emission from Cassiopeia A - SRON

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Supernova remnants & Importance of 44 Ti ● Decay time ~85 yr: present in young remnants ● Less abundant than 56 Ni (~0.07 vs 10 -5 -10 -4 M סּ ) ● Alpha rich freeze out product (excess of alpha particles during rapid expansion) ● Amount sensitive to SN mass cut/energy/asymmetries Arnett '98 Arnett '96 44 Ti Emission from Cassiopeia A Jacco Vink Diehl&Timmes Estec, '98 Noordwijk, January 19, 2005
44 Ti & Integral IBIS SPI 44 Ti Emission from Cassiopeia A Jacco Vink Estec, Noordwijk, January 19, 2005
Page 1: 44 Ti Emission from Cassiopeia A Ja
Page 5 and 6: Explosive Nucleosynthesis (Kifonidi
Page 7 and 8: Detection of 44 Ti emission from Ca
Page 9 and 10: Evidence for Asymmetric Explosion C
Page 11 and 12: What velocities to expect? ● Curr
Page 13 and 14: INTEGRAL Observations Cas A (Amalga
Page 15 and 16: IBIS spectrum Raw spectrum ● 67.9
Page 17: Summary and Conclusions ● 44 Ti a

44Ti Emission from Cassiopeia A - SRON

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