Study of the Dependence of the Plateau Shape for Type II Supernovae on Metallicity

Astronomy Letters - We consider the effect of a change in the rate of flux decline in the $$U$$ band for type II-P supernovae (SNe IIP) as a function of metallicity $$Z$$ . Based on this effect, we...     

August 2004

An extension to kinetic theory and hydrodynamic models is proposed that accounts for the existence of multi-particle contacts and leads to a correction of the cooling rate. The other hydrodynamic terms remain unchanged. In the presence of multi-particle contacts a class of different models leads to deviations from the classical inelastic hard sphere (IHS) results. For the homogeneous cooling state (HCS), as examined here, the theoretical results are found to be in perfect agreement with the numerical simulations. We acknowledge partial support from the Deutsche Forschnugsgemeinschaft (DFG) and the Israel Science Foundation, grant no. 53/01.