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23 May 2022
 
  » arxiv » astro-ph/9612204

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The Performance of MEFOS, the ESO Multi-Object Fibre Spectrograph
P. Felenbok ; J. Guérin ; A. Fernandez ; V. Cayatte ; C. Balkowski ; R.C. Kraan-Korteweg ;
Date 20 Dec 1996
Journal Exper.Astron. 7 (1997) 65-85
Subject astro-ph
AffiliationObservatoire de Paris-Meudon, France
AbstractWe are describing a new multi-fibre positioner, MEFOS, that was in general use at the La Silla Observatory, and implemented at the prime focus of the ESO 3.6 m telescope. It is an arm positioner using 29 arms in a one degree field. Each arm is equipped with an individual viewing system for accurate setting and carries two spectroscopic fibres, one for the astronomical object and the other one for the sky recording needed for sky subtraction. The spectral fibres intercept 2.5 arcsec on the sky and run from the prime focus to the Cassegrain, where the B&C spectrograph is located. After describing the observational procedure, we present the first scientific results.
Source arXiv, astro-ph/9612204
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