Computer Science – Performance
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sf2a.conf..591b&link_type=abstract
SF2A-2004: Semaine de l'Astrophysique Francaise, meeting held in Paris, France, June 14-18, 2004. Edited by F. Combes, D. Barret
Computer Science
Performance
Scientific paper
Gaia will map one billion stars, throughout the Galaxy and beyond, to unprecedented levels of precision. Detailed and accurate simulations are needed to be able to test and optimise the design according to the scientific needs, develop the on-board algorithms, prepare the reduction studies and study the final performances and challenges. To this aim, a pixel-level simulator of the Gaia observations has been developed. It combines a model of the astrophysical sources that Gaia will observe with a model of the satellite and its instruments. It has been developed to allow a progressive enhancement of the simulations towards representative Gaia data. I will present here this simulator, how it is being built and used by the Gaia community, and its current applications.
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