First light for LIRIS (long-slit intermediate-resolution infrared spectrograph)

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

doi:10.1117/12.549188

30 September 2004 First light for LIRIS (long-slit intermediate-resolution infrared spectrograph)

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

Author Affiliations +

Proceedings Volume 5492, Ground-based Instrumentation for Astronomy; (2004) https://doi.org/10.1117/12.549188
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

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.

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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, and Maria J. Vidal "First light for LIRIS (long-slit intermediate-resolution infrared spectrograph)", Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); https://doi.org/10.1117/12.549188

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