Title:Spectral analysis of type II Supernovae

Abstract:
We present the first spectroscopic analysis of type II Supernovae (SNe) obtained by the Carnegie 
Supernova Project (CSP) between 2004 and 2009.  A total of 560 spectra were obtained for a sample of 60 
SNe of type IIP and IIL.  We present examples of the spectral variety of type II SNe, focusing in the 
Halpha profile and their possible correlations with photometric parameters.