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Proceedings Paper

Mechanics of LIRIS (long-slit intermediate-resolution infrared spectrograph) at first commissioning
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Paper Abstract

LIRIS is a near-infrared intermediate resolution spectrograph with added capabilities for multi-slit, imaging, coronography, and polarimetry, developed by the Instituto de Astrofisica de Canarias (IAC). It will be a common user instrument for the Cassegrain focus of the William Herschel Telescope (WHT) at the Roque de los Muchachos Observatory in La Palma. At its first commissioning, that was held in February 2003, the functionality of the mechanisms (entrance wheel, central wheels and camera wheel) under variable orientation of the telescope was verified, and no thermal nor structural problems arose. The functionality of the mechanical interface with telescope (allows for up to 5 mm of lateral displacements in the attachment plane), of the LIRIS handling trolley, of the transport equipment and of all the equipments used in the integration was also checked. For the second commissioning of LIRIS, which has been held in March 2004, some modifications have been done. The results of both commissionings were satisfactory.

Paper Details

Date Published: 30 September 2004
PDF: 10 pages
Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); doi: 10.1117/12.551286
Show Author Affiliations
Elvio Hernandez, Instituto de Astrofisica de Canarias (Spain)
Jose Acosta-Pulido, Instituto de Astrofisica de Canarias (Spain)
Emilio Cadavid, Instituto de Astrofisica de Canarias (Spain)
Santiago Correa, Instituto de Astrofisica de Canarias (Spain)
Lorenzo Peraza, Instituto de Astrofisica de Canarias (Spain)
Pablo Redondo, Instituto de Astrofisica de Canarias (Spain)
Vicente Sanchez, Instituto de Astrofisica de Canarias (Spain)
Fabio Tenegi, Instituto de Astrofisica de Canarias (Spain)
Arturo Manchado, Instituto de Astrofisica de Canarias (Spain)
Mary Barreto, Instituto de Astrofisica de Canarias (Spain)


Published in SPIE Proceedings Vol. 5492:
Ground-based Instrumentation for Astronomy
Alan F. M. Moorwood; Masanori Iye, Editor(s)

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