The Stockholm VIMOS Supernova Survey: catalogues, SNe and host galaxies.
by
Laia Mencia Trinchant(Stockholm University)
→
Europe/Stockholm
FA31
FA31
Description
Imaging surveys help astronomers understand the formation and evolution processes of individual galaxies and galaxy clusters. These surveys also provide constraints on the structure and evolution of the Universe. In this talk, I will present the SVISS survey, where the ELAIS-S field was observed with VIMOS UBVRI broad-band optical bands over a period of 5 years. The main goal of SVISS is to determine supernova rates at redshifts from 0.1-1, but the wealth of data enable us to study also galaxy evolution and the hosts supernovae. I will describe the work done to create a deep photometric catalogue of galaxies in the field, completeness and number counts computations, and dropout techniques to select LBGs. Photometric redshifts have been obtained for most galaxies in the field using a template-fitting method. I will briefly describe this method and present the resulting redshift distribution. I will present a brief summary of the supernova results founds so far, we have found 16 supernovae in total, 8 Ia supernovae and 8 core collapse, which have been used to compute supernova rates at redshifts up to approximately 1. I will also explain how the SN host galaxies were determined and show the radial distribution of the SNe and the distribution of SED (spectral energy distribution) types for the hosts.
