The Gaia Object Simulator

E. Antiche, R. Borrachero, F. Julbe, E. Masana (ICC-UB / IEEC, Spain)

Gaia, a cornerstone ESA mission, will produce a three-dimensional map of our Galaxy. It was launched in December 2013, and it is expected to provide an important improvement in our understanding of the structure, composition and evolution of the Galaxy. The preparation for the acquisition of the data is essential as Gaia will provide astrometry, radial velocities and multi-colour photometry for over one billion objects in the sky. The Gaia Data Processing and Analysis Consortium (DPAC), has been preparing a simulator called the Gaia Object Generator (GOG), which simulates the end of mission catalogue, including observational errors. This is achieved through the use of analytical and numerical error models to create realistic observational errors in astrometric, photometric and spectroscopic parameters (Isasi et al. 2010). The GOG catalogue has provided useful information about the contents of the expected Gaia catalogue and moreover, is actively used to produce the tools that will validate, manipulate and visualize the real data before publication.

Topic revision: r1 - 2014-11-28 - SusanaBascon
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