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Proceedings Paper

The gas absorption cell for GIANO-TNG
Author(s): F. D'Amato; E. Oliva; L. Origlia
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Paper Abstract

GIANO is an high resolution cross-dispersed spectrometer operating at near IR wavelengths (0.9-2.5 microns). One of its primary aims is to measure radial velocities of cool stars with an accuracy of a few m/sec. To this purpose, the spectrometer requires a gas absorption cell which should ideally produce several hundreds of measurable lines distributed over the whole wavelengths range. We show that this can be conveniently achieved using a combination of halogen hydrates, namely HCl, HBr and HI. We present and discuss the design and development of such a cell.

Paper Details

Date Published: 28 June 2006
PDF: 5 pages
Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 62695E (28 June 2006); doi: 10.1117/12.670375
Show Author Affiliations
F. D'Amato, CNR, Istituto Nazionale di Ottica Applicata (Italy)
E. Oliva, INAF, Osservatorio di Arcetri (Italy)
Telescopio Nazionale Galileo (Spain)
L. Origlia, INAF, Osservatorio di Bologna (Italy)

Published in SPIE Proceedings Vol. 6269:
Ground-based and Airborne Instrumentation for Astronomy
Ian S. McLean; Masanori Iye, Editor(s)

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