The Stockholm VIMOS Supernova survey - first results
by
DrJens Melinder(Stockholm University)
→
Europe/Stockholm
FA32
FA32
Description
The aim of the Stockholm VIMOS Supernova Survey is to find and
characterize supernovae in the redshift range ~0.1 to ~1.2 and to
derive accurate supernova rate densities for this redshift range. A
preliminary analysis show that we have 14 prime SN candidates and an
additional 23 less secure detections in one of our search fields. A
sample of R+I light curves for prime candidates will be presented. '
I will also discuss some results from testing of our supernova search
pipeline on simulated data. The main result of this study is that
the detection pipeline can be used to detect faint supernovae in deep
imaging data, and that the detection efficiency as well as photometric
accuracy can be estimated. However, we have found that there are some
problems with the image subtraction. For all tested parameters and
data epochs we find that there is a small systematic flux offset
remaining at the positions of galaxies in the subtracted frames.
We find that the systematic offset can be corrected for by doing
detailed simulations of the full SN detection method.