Speaker: James Etherington
The properties of galaxies in the local universe have been shown to
depend upon their environment. Photometric surveys will be vital to
gain insight into the evolution of galaxy properties and the role of
galaxy environment. The next generation of photometric surveys, such
as the Dark Energy Survey (DES), will measure properties of galaxies
out to a redshift of z=2, providing enormous datasets. The huge sample
sizes that will be available come at the cost of redshift precision.
We consider three methods of measuring environment: the 5th nearest
neighbour, a cylindrical fixed aperture and a conical fixed aperture
method and evaluate the impact of using photometric redshift datasets
on environment trends.