Article révisé par les pairs
| Résumé : | Detailed and accurate simulations are needed to be able to test and optimize the design according to the scientific needs, develop the on-board algorithms, prepare the reduction studies and assess the final performances and challenges. To this aim, a pixel-level simulator of the Gaia observations has been developed. It is part of the Gaia Simulator, sharing a common structure with the telemetry simulator GASS. It combines a model of the astrophysical sources that Gaia will observe with a model of the instruments, in order to simulate Gaia observations of given regions of the sky with a high level of precision. I will present here this pixel-level simulator with its current applications. |
