A new morphological catalogue of ~12,000 IRAS galaxies: setting the z=0 baseline for star-forming galaxies
Ashley Hyde (Imperial College London)
A large, statistically-significant morphological study of infrared (IR)-selected star-forming galaxies in the local Universe has so far been lacking. We present a morphological catalogue of ~12,000 galaxies, selected from the Imperial IRAS-FSC Redshift Catalogue (IIFSCz) and crossmatched with the SDSS DR7 spectroscopic sample. We determine morphologies via visual inspection of SDSS images (much in the spirit of Galaxy Zoo!) and use UV (GALEX), optical (SDSS) and IR (IRAS) photometry to model galaxy SEDs and derive a range of physical properties. The unprecedented sample size allows us to set, for the first time, the z=0 baseline for IR-selected star-forming galaxies in terms of trends between properties such as morphology, IR luminosity, stellar mass, velocity dispersion, specific SFR, environment and AGN activity. We highlight our key science results (to be published in a suite of forthcoming papers), including the distribution of local (z