In this part, we detail the construction of the curves of light. Initially, we describe how was given photometry on the ground by differential photometry and harmonization of PSFs. In the second time, we explain how photometry with the Hubble telescope was given.
This work was completed by Sebastien Fabbro, for further details, to refer to its thesis (fabbro2001). We will be satisfied in the continuation with a rapid description.
Reduction of the supernovæ of the countryside of spring 2001