The gas absorption cell for GIANO-TNG

F. D'Amato; E. Oliva; L. Origlia

doi:10.1117/12.670375

28 June 2006 The gas absorption cell for GIANO-TNG

F. D'Amato, E. Oliva, L. Origlia

Proceedings Volume 6269, Ground-based and Airborne Instrumentation for Astronomy; 62695E (2006) https://doi.org/10.1117/12.670375
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

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.

Citation Download Citation

F. D'Amato, E. Oliva, and L. Origlia "The gas absorption cell for GIANO-TNG", Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 62695E (28 June 2006); https://doi.org/10.1117/12.670375

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