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Proceedings Paper

FIDEOS: a high resolution echelle spectrograph for the ESO 1m telescope at La Silla
Author(s): Marcelo Tala; A. Berdja; M. Jones; L. Vanzi; S. Ropert; M. Flores; C. Viscasillas
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Paper Abstract

FIDEOS (FIbre Dual Echelle Optical Spectrograph) is a fibre-fed bench-mounted high-resolution echelle spec- trograph for the 1-m telescope at ESO in La Silla, Chile. It is based on a 44.41 lines/mm 70° blaze angle echelle grating in quasi-Littrow mode, providing spectral resolution of R ~ 42 000, covering the spectral range from 400 nm to 680 nm. The detector is a 2k×2k CCD with 15 μm pixels. The spectrograph will be fed by two 50 µm core diameter fibres for the astronomical object and the simultaneous calibration lamp, respectively. Alter- natively, an iodine cell will be mounted on the telescope-spectrograph interface, providing a secondary spectral calibration source. In addition, the instrument will be mounted on a fixed optical-bench without movable parts rather than the CCD shutter and its enclosure will be thermally controlled to ensure opto-mechanical stability. Since the FIDEOS will deliver high resolution and spectral stability, it will be optimized for precision radial velocities.

Paper Details

Date Published: 28 July 2014
PDF: 7 pages
Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 914789 (28 July 2014); doi: 10.1117/12.2056551
Show Author Affiliations
Marcelo Tala, Pontificia Univ. Católica de Chile (Chile)
A. Berdja, Pontificia Univ. Católica de Chile (Chile)
M. Jones, Pontificia Univ. Católica de Chile (Chile)
L. Vanzi, Pontificia Univ. Católica de Chile (Chile)
S. Ropert, Pontificia Univ. Católica de Chile (Chile)
M. Flores, Univ. de Santiago de Chile (Mexico)
C. Viscasillas, Univ. Católica de Avila (Spain)

Published in SPIE Proceedings Vol. 9147:
Ground-based and Airborne Instrumentation for Astronomy V
Suzanne K. Ramsay; Ian S. McLean; Hideki Takami, Editor(s)

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