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Site-testing and continuous atmospheric monitoring at mm wavelength band with CASPER 2

Published online by Cambridge University Press:  24 December 2009

L. Spinoglio ,
N. Epchtein ,
B. Decina ,
S. De Gregori ,
M. De Petris  and
L. Lamagna
B. Decina
Affiliation:
Department of Physics, “Sapienza”, University of Rome, P.le Aldo Moro 2, 00185 Rome, Italy
S. De Gregori
Affiliation:
Department of Physics, “Sapienza”, University of Rome, P.le Aldo Moro 2, 00185 Rome, Italy
M. De Petris
Affiliation:
Department of Physics, “Sapienza”, University of Rome, P.le Aldo Moro 2, 00185 Rome, Italy
L. Lamagna
Affiliation:
Department of Physics, “Sapienza”, University of Rome, P.le Aldo Moro 2, 00185 Rome, Italy
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Abstract

Ground-based cosmological observations need a detailed knowledge about atmospheric transmission. A continuous monitoring of the transmission in the FIR/mm wavelength range is needed mainly due to H2O high frequency variations along the line of sight of a telescope. CASPER 2 (Concordia Atmospheric Spectroscopy of Emitted Radiation) is a spectrometer devoted to measurements of atmospheric emission in the millimetric region (4–12 cm-1, 120–360 GHz) with a spectral resolution of 0.2 cm-1. The instrument allows a continuous monitoring of the atmospheric transmission of the same sky region explored with MITO (Millimeter and Infrared Testagrigia Observatory, 3480 m asl, Italy) telescope, during cosmological observations.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 40: 3rd ARENA Conference: An Astronomical Observatory at CONCORDIA (Dome C, Antarctica) , 2010 , pp. 107 - 110
Copyright
© EAS, EDP Sciences, 2010

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References

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