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Proceedings Paper

First light for LIRIS (long-slit intermediate-resolution infrared spectrograph)
Author(s): Arturo Manchado; Mary Barreto; Jose Acosta-Pulido; Ezequeil Ballesteros; Roberto Barreto; Emilio Cadavid; Judit Carrillo; Miguel Charcos; Santiago Correa; Jose Miguel Delgado; Carlos Dominguez-Tagle; Omaira Gonzalez; Elvio Hernandez; Roberto Lopez; Heidy Moreno; Jose Olives; Lorenzo Peraza; Francisco Prada; Pablo Redondo; Vicente Sanchez; Nicolas Sosa; Fabio Tenegi; Maria J. Vidal
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Paper Abstract

LIRIS is a near-infrared (1-2.5 microns) intermediate resolution spectrograph (R=1000-3000) with added capabilities for multi-slit, imaging, coronography, and polarimetry, built by the IAC to be a common instrument for the WHT (La Palma). Here we report the results of the two commissioning periods. The image quality was checked, obtaining a FWHM of 0".5 in the Ks band over the whole field of view (4'.2 x 4'.2). Zero points and sky brightness were measured, and very low values were found in the latter. The long slit spectra obtained matched the expected spectral resolution (2.6 pixels for a 0".65-wide slit). Flexure tests were carried out with good results. Several science targets were observed, the most note-worthy result being the detection of the CIV 154.9 nm line in the most distant qso at z=6.41.

Paper Details

Date Published: 30 September 2004
PDF: 11 pages
Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); doi: 10.1117/12.549188
Show Author Affiliations
Arturo Manchado, Instituto de Astrofisica de Canarias (Spain)
Mary Barreto, Instituto de Astroisica de Canarias (Spain)
Jose Acosta-Pulido, Instituto de Astrofisica de Canarias (Spain)
Ezequeil Ballesteros, Instituto de Astrofisica de Canarias (Spain)
Roberto Barreto, Instituto de Astrofisica de Canarias (Spain)
Emilio Cadavid, Instituto de Astrofisica de Canarias (Spain)
Judit Carrillo, Instituto de Astrofisica de Canarias (Spain)
Miguel Charcos, Instituto de Astrofisica de Canarias (Spain)
Santiago Correa, Instituto de Astrofisica de Canarias (Spain)
Jose Miguel Delgado, Instituto de Astrofisica de Canarias (Spain)
Carlos Dominguez-Tagle, Instituto de Astrofisica de Canarias (Spain)
Omaira Gonzalez, Instituto de Astrofisica de Canarias (Spain)
Elvio Hernandez, Instituto de Astrofisica de Canarias (Spain)
Roberto Lopez, Instituto de Astrofisica de Canarias (Spain)
Heidy Moreno, Instituto de Astrofisica de Canarias (Spain)
Jose Olives, Instituto de Astrofisica de Canarias (Spain)
Lorenzo Peraza, Instituto de Astrofisica de Canarias (Spain)
Francisco Prada, Instituto de Astrofisica de Andalucia (Spain)
Pablo Redondo, Instituto de Astrofisica de Canarias (Spain)
Vicente Sanchez, Instituto de Astrofisica de Canarias (Spain)
Nicolas Sosa, Instituto de Astrofisica de Canarias (Spain)
Fabio Tenegi, Instituto de Astrofisica de Canarias (Spain)
Maria J. Vidal, 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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