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Communication Dans Un Congrès Année : 2022

Flux reconstruction for the NIR camera CAGIRE at the focus of the Colibrí telescope

Adrien Lamoure
  • Fonction : Auteur
Laurent Rubaldo
  • Fonction : Auteur
Bruno Fieque
  • Fonction : Auteur
Julien Roumegoux
  • Fonction : Auteur
Alan M. Watson
  • Fonction : Auteur
William H. Lee
  • Fonction : Auteur
Nathaniel Butler
  • Fonction : Auteur

Résumé

CAGIRE is the near infrared camera of the Colibrí robotic telescope, designed for the follow-up of SVOM alerts. It is based on the ALFA 2k x 2k detector, from the LYNRED French Company, operating in "Up the Ramp" mode. An observation consists in a series of short (1-2 minutes) exposures during which the pixels are read out every 1.3 second, while continuously accumulating charges proportionally to the received flux. We discuss here the preprocessing of CAGIRE data and a method that can be used to recover the flux received by each pixel from the slope of the ramp.

Dates et versions

hal-03769034 , version 1 (05-09-2022)

Identifiants

Citer

Alix Nouvel de la Flèche, Jean-Luc Atteia, Hervé Valentin, Marie Larrieu, Jérémie Boy, et al.. Flux reconstruction for the NIR camera CAGIRE at the focus of the Colibrí telescope. SPIE Astronomical Telescopes + Instrumentation 2022, Jul 2022, Montréal, Canada. pp.121910Q, ⟨10.1117/12.2627826⟩. ⟨hal-03769034⟩
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