Gas Cell Development for Infrared Spectra Calibration

Bibcode
2010hsa5.conf..543V
DOI
10.1007/978-3-642-11250-8_168
Valdivielso, L.; Esparza, Pedro; Martín, E. L.
Bibliographical reference

Highlights of Spanish Astrophysics V, Astrophysics and Space Science Proceedings, Volume . ISBN 978-3-642-11249-2. Springer-Verlag Berlin Heidelberg, 2010, p. 543

Advertised on:
2010
Number of authors
3
IAC number of authors
2
Citations
0
Refereed citations
0
Description
NAHUAL is a high-resolution near-infrared echelle spectrograph of high stability on preliminary phase development for GTC (Gran Telescopio de Canarias). Its natural location is a Nasmyth focus. One of the principal scientific aims is to carry out high precision radial velocity measurements (from 1 to 10 m/s) in the near infrared. To achieve high stability on radial velocity measurements, NAHUAL needs a calibration unit that uses a mixture of gases whose absorption spectra must be as homogeneous as possible between 0.95 and 2.4 μm. We report on the measurements done to date with potentially active gas mixtures as acetylene, methane, nitrous oxide or hydrocarbons.
Type
Non-refereed

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