This talk will explore three themes: (1) Our understanding of the space density of disk systems in the nearby (z<0.1) Universe, their global properties including their panchromatic (FUV-far-IR) information (energy outputs), their dust properties (masses and temperatures), their (specific) star-formation rates, and ultimately the amount of stellar mass locked up in disc components. (2) The completeness of our local surveys, with a particular focus on the severe impact of low surface brightness selection bias, and how these can be overcome using the upcoming deep imaging studies. (3) The complexity of automated structural decomposition and experiences and results from profiling 8000 galaxies at z<0.06 allowing us to derive key relations such as the mass-size relation of disc systems. The data shown is drawn from the Galaxy And Mass Assembly survey. The GAMA survey builds upon the SDSS legacy by extending 2mags deeper spectroscopically (r<19.8mag) and also including panchromatic data from GALEX, VST, VISTA, WISE and Herschel-Atlas and shortly ASKAP for 300,000 galaxies over 250sq deg of sky. This talk will be aligned with the GAMA Panchromatic Data Release where all imaging data products will be publicly released.
|Publication status||Published - 2015|
|Event||XXIX IAU General Assembly - Honolulu, United States|
Duration: 3 Aug 2015 → 14 Aug 2015
Conference number: 29
|Other||XXIX IAU General Assembly|
|Period||3/08/15 → 14/08/15|