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Gaia: Object Detectability Near Bright Extended Sources

Authors :
F. Raison
J. M. Martín-Fleitas
Alcione Mora
R. Kohley
Source :
EAS Publications Series. 45:417-420
Publication Year :
2010
Publisher :
EDP Sciences, 2010.

Abstract

The impact of bright extended sources on the observation and detection of faint sources by Gaia has been studied. The effect has been characterized using the representative case of stars near the Jupiter disk and consists of three parts. First, an analytical representation of the PSF, including aberrations and electronic distortions, has been developed to produce images of Jupiter and solar type stars. Second, those images have been combined to produce fields of view including Jupiter and stellar patterns. Third, the CCD images have been fed to the VPU algorithms prototype to determine the limits until which detections are possible. This work can be useful for science cases such as GAREQ.

Details

ISSN :
16381963 and 16334760
Volume :
45
Database :
OpenAIRE
Journal :
EAS Publications Series
Accession number :
edsair.doi...........6b29832edc40f21696e801d0586349c6
Full Text :
https://doi.org/10.1051/eas/1045073