Jochen Liske (Hamburg)

The low-redshift universe as seen by the Galaxy And Mass Assembly survey
When May 11, 2017 from 02:30 PM to 03:30 PM
What
  • Colloquium
Where SH Lecture Hall
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Large galaxy surveys have been a driving force in developing our understanding of galaxy evolution for more than two decades. Their role is to systematically characterise galaxies as a function of key parameters and to disentangle the complex interplay between dark matter, stars, gas, dust and AGN. While much of the action in galaxy evolution happens at redshifts > 1, the value of low-redshift surveys lies in the comprehensiveness and statistical power with which they are able to describe the end product of galaxy evolution. In this talk I will review a selection of results from the recently completed Galaxy And Mass Assembly survey. GAMA combines an extensive spectroscopic survey with imaging data from seven ground-based facilities and four space missions in order to construct a unique multi-wavelength data set covering all major galaxy constituents. I will discuss results concerning the galaxy stellar mass function, the halo masses and mass-to-light ratios of galaxies and groups, the star formation rate and the build-up of stellar mass through mergers.