Spectrographe

Le spectrographe KMOS[1].
Spectrographe Solaire Horizontal à l'Institut Astronomique Tchèque de Ondřejov, République tchèque

Un spectrographe est un instrument d'optique qui sépare la lumière en un spectre de fréquences et enregistre le signal à l'aide d'une caméra[2]. Il existe plusieurs types de machines appelées spectrographes, en fonction de la nature précise des ondes. Le terme a été utilisé pour la première fois en par Henry Draper qui a inventé cet appareil, avec lequel il a pris plusieurs photos du spectre de Vega. Cette première version du spectrographe était lourde et difficile à utiliser[3].

Références

  1. ↑ (en) « Powerful New VLT Instrument Arrives in Chile », ESO Announcement (consulté le )
  2. ↑ (en) A. Jenkins, Compendium of Chemical Terminology, , 2e éd. (ISBN 978-0-9678550-9-7 et 0-9678550-9-8, DOI 10.1351/goldbook.S05836), « Spectrograph »
  3. ↑ Memoir of Henry Draper, 1837-1882 by George Barker.
  • Jacques, Jean (2007), Spectrographe Design Fundamentals (Cambridge University Press) (ISBN 0-521-86463-1)

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