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Proceedings Paper

LIRIS: a long-slit intermediate-resolution infrared spectrograph for the WHT
Author(s): Arturo Manchado-Torres; F. Javier Fuentes; Francisco Prada; Ezequiel Ballesteros Ramirez; Mary Barreto; J. M. Carranza; I. Escudero; Ana Belen Fragoso-Lopez; Enrique Joven-Alvarez; Antonio Manescau; Marti Pi i Puig; Luis Fernando Rodriguez-Ramos; Nicolas A. Sosa
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Paper Abstract

The Instituto de Astrofisica de Canarias (IAC) is undertaking the design and construction of a common-user near IR spectrograph (LIRIS) for the Cassegrain focus of the 4.2 m William Herschel Telescope sited at the Observatorio del Roque de Los Muchachos. LIRIS will be a near IR intermediate-resolution spectrograph designed to operate over a spectral resolution range between 1000 and 5000, with added capabilities for coronographic, multiproject and polarimetric observations. The instrument allows the combination of an adequate spatial resolution with a large useful field of view across the slit, thanks to the use of the new 1024 X 1024 pixel HgCdTe Hawaii detector manufactured by Rockwell. All the optics and mechanisms situated inside the cryostat will be cooled to below 100 K. The detector will operate at 77 K. Calibration and tracking will be made with the existing Cassegrain A and G Box, into which a near IR calibration system will be incorporated.

Paper Details

Date Published: 21 August 1998
PDF: 8 pages
Proc. SPIE 3354, Infrared Astronomical Instrumentation, (21 August 1998); doi: 10.1117/12.317270
Show Author Affiliations
Arturo Manchado-Torres, Instituto de Astrofisica de Canarias (Spain)
F. Javier Fuentes, Instituto de Astrofisica de Canarias (Spain)
Francisco Prada, Instituto de Astrofisica de Canarias (Spain)
Ezequiel Ballesteros Ramirez, Instituto de Astrofisica de Canarias (Spain)
Mary Barreto, Instituto de Astrofisica de Canarias (Spain)
J. M. Carranza, Instituto de Astrofisica de Canarias (Spain)
I. Escudero, Instituto de Astrofisica de Canarias (Spain)
Ana Belen Fragoso-Lopez, Instituto de Astrofisica de Canarias (Spain)
Enrique Joven-Alvarez, Instituto de Astrofisica de Canarias (Spain)
Antonio Manescau, Instituto de Astrofisica de Canarias (Spain)
Marti Pi i Puig, Instituto de Astrofisica de Canarias (Spain)
Luis Fernando Rodriguez-Ramos, Instituto de Astrofisica de Canarias (Spain)
Nicolas A. Sosa, Instituto de Astrofisica de Canarias (Spain)


Published in SPIE Proceedings Vol. 3354:
Infrared Astronomical Instrumentation
Albert M. Fowler, Editor(s)

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