Supercolour Catalogue
On this page we provide the PCA "supercolour" galaxy catalogues, as described in Wilkinson et al. (2021). Galaxies are classified into star-forming, passive, and post-starburst (PSB) types, based on the shape of their SED. A full description of the method can be found in Wild et al. (2014). The method was applied to over 90,000 galaxies in the DR11 catalogue within the redshift range 0.5<z<3.0 to a magnitude limit of K<24.5 (AB), covering an area of approximately 0.62 sq degrees. The restricted redshift range is imposed to allow reliable PCA classifications. The input 12-band catalogue with photometric redshifts can be found here. The PCA analysis was applied only to galaxies with reliable 12-band photometry, excluding stars and masked regions (see README file for details). An image displaying the masked regions can be found here.
Wilkinson et al. (2021) also generated supercolour classifications for the COSMOS/UltraVISTA field, which are provided below for completeness. This was based on the photometric catalogue of Laigle et al. (2016). The SC catalogue covers an area of apprximately 1.5 sq degrees, to a depth of Ks<23.4 (Ks<24.1 within the deeper stripes). The redshift range was restricted to 0.5<z<2.5.
When using these data please cite Wilkinson et al. (2021) and Wild et al. (2014).