Bridging the gap: GCLUS. A database of 9.5 Gyr of evolution of galaxies

Aiming at bridging the gap between the star formation properties of mature, low redshift 
clusters and young, high redshift ones, we have built  a database of nine clusters in 
the range 0.39 < z < 1.63 observed by the Herschel Space Observatory.

We have compiled multi-wavelength catalogues of cluster member candidates determining their
photometric redshifts based on SED-fitting and Monte Carlo simulations and built a 
comprehensive database containing a number of physical properties (e.g. stellar mass, 
SFR, projected local density). In addition, whenever possible we have discriminated the 
AGN population by different diagnostics and performed a morphological classification
for those clusters at z<1. 

With this dataset, we are addressing a number of outstanding questions that include: how 
does the SF and AGN activity vary with the local density? Is there there a reversal of the 
SFR-density relation in this sample? how the total SFR relates to the clusters' stellar 
mass? Attempting to answer these questions, some early science results are outlined in this poster.