The late UVOIR light curve of SN 2000cx

Abstract

We present preliminary data and modeling of the late time light curve of the Type Ia supernova SN 2000cx. Optical and near-infrared data obtained with the VLT at 360 to 480 days past maximum light show the increasing importance of the near-infrared regime. Detailed multi-band modeling based on W7 also show this effect. Conclusions on positron escape in this phase may therefore require more detailed observations and modeling than hitherto appreciated.

To appear in proceedings of IAU Colloquium 192, Supernovae: 10 Years of 1993J, Valencia, Spain 22-26 April 2003, eds. J.M. Marcaide, K.W. Weiler