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Proceedings Paper

GOHSS (Galileo OH subtracted spectrograph): a progress report
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Paper Abstract

We describe the current status of the technical aspects of the GOHSS project. It consists of a fiber-fed NIR spectrograph for faint objects. It will be a second-light instrument for the Nasmyth focus of the 3.5m Galileo telescope located on La Palma. GOHSS is an innovative instrument which accomplishes OH night-sky subtraction, differently from the hardware solution used by other devices; it provides a multiechelle design with software OH subtraction capable of yielding about 25 spectra in the z,J and H bands at an effective spectral resolution of about 4000, which is necessary to strongly reduce the impact of atmospheric OH lines. The GOHSS design is completed and the operative phase is already started through the procurement of the most important components. We have also started to develop the data reduction package for the instrument and the first result of the 1D approach as presented.

Paper Details

Date Published: 16 August 2000
PDF: 11 pages
Proc. SPIE 4008, Optical and IR Telescope Instrumentation and Detectors, (16 August 2000); doi: 10.1117/12.395527
Show Author Affiliations
Dario Lorenzetti, Osservatorio Astronomico di Roma (Italy)
Fausto Cortecchia, Osservatorio Astronomico di Capodimonte (Italy)
Fabrizio Vitali, Osservatorio Astronomico di Roma (Italy)
Enrico Cascone, Osservatorio Astronomico di Capodimonte (Italy)
Francesco D'Alessio, Osservatorio Astronomico di Roma (Italy)
Richard S. Ellis, Institute of Astronomy/Univ. of Cambridge (United States)
Agostino Fiorani, Osservatorio Astronomico di Roma (Italy)
Dario Mancini, Osservatorio Astronomico di Capodimonte (Italy)
Ian Robert Parry, Institute of Astronomy/Univ. of Cambridge (United Kingdom)
Fernando Pedichini, Osservatorio Astronomico di Roma (Italy)
Roberto Scaramella, Osservatorio Astronomico di Roma (Italy)
Roberto Speziali, Osservatorio Astronomico di Roma (Italy)

Published in SPIE Proceedings Vol. 4008:
Optical and IR Telescope Instrumentation and Detectors
Masanori Iye; Alan F. M. Moorwood, Editor(s)

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