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Proceedings Article

The GAIA photometric data processing

[+] Author Affiliations
Giorgia Busso

Leiden Observatory, Leiden Univ. (Netherlands)

Francesca De Angeli

Institute of Astronomy, Univ. of Cambridge (United Kingdom)

Paolo Montegriffo

INAF - Osservatorio Astronomico di Bologna (Italy)

Proc. SPIE 8442, Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave, 844242 (August 22, 2012); doi:10.1117/12.925911
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From Conference Volume 8442

  • Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave
  • Mark C. Clampin; Giovanni G. Fazio; Howard A. MacEwen; Jacobus M. Oschmann
  • Amsterdam, Netherlands | July 01, 2012

abstract

Gaia is an ESA mission which will measure the positions, distances, space motions, and many physical characteristics for one billion stars in our Galaxy and beyond. The satellite will have three instruments on board: the Astrometric Field for the astrometry; the Blue and Red Photometers for the low-resolution spectroscopy and the Radial Velocity Spectrometer which will allow measuring radial velocities. This paper will give an overview of the processing of the dispersed images for BP and RP: the data will be corrected for CCD related effects in the pre-processing, where also the sky background and the flux contamination from neighbouring sources will be removed; the data will be then internally calibrated to the same "mean instrument" and externally calibrated to obtain spectrum and flux in physical units, which will be stored in the final catalogue. © (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Giorgia Busso ; Francesca De Angeli and Paolo Montegriffo
" The GAIA photometric data processing ", Proc. SPIE 8442, Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave, 844242 (August 22, 2012); doi:10.1117/12.925911; http://dx.doi.org/10.1117/12.925911


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