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.jpg) Composite picture shows how a typical galaxy appears at different wavelengths in the GAMA survey | |
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TheGalaxy And Mass Assembly (GAMA)survey[1] is a project that plans to exploit the latest generation of ground-based wide-field survey facilities to studycosmology andgalaxy formation and evolution. GAMA plans to bring together data from a number of world class instruments:
Data from these instruments will be used to construct a state-of-the-art multi-wavelength database of ~375,000 galaxies in the local Universe over a 360deg2 region of sky, based on a spectroscopicredshift survey on the AAT'sAAOmega spectrograph.
The main objective of GAMA is to study structure on scales of 1kpc to 1Mpc. This includesgalaxy clusters,groups,mergers and coarse measurements of galaxy structure (i.e.,bulges anddiscs). It is on these scales wherebaryons play a critical role in the galaxy formation and subsequent evolutionary processes and where our understanding of structure in the Universe breaks down.
GAMA's primary goal is to test theCDM paradigm ofstructure formation. In particular, the key scientific objectives are:
In August 2012 GAMA received worldwide attention for its announcement of a galaxy system very similar to our ownMilky-Way Magellanic Cloud system, centred onGAMA202627.
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