The role of neutrinos in core collapse Supernova explosion - LUTh ...

Results: "cold" collapse phase
homologous collapse and shock formation
deleptonization and ν trapping
T 2MeV: low pair
production
for 10 9 g/cm 3 → 10 12 g/cm 3 ,
high e − capture and νe’s
production, which escape
almost freely
⇒ Yl : 0.42 → 0.3
for ρ 10 12 g/cm 3 , ν diffuses
and tdiff > tdyn: ˙ Yl ≈ 0 ≈ ˙ S
Martinez-Pinedo et al. (2006)
Neutrinos in core collapse SN explosion - Paris, 10 September 2009 – p. 18/48