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Case for a Ground-Based Preparatory Program for HIFI Calibration Sources

Published online by Cambridge University Press:  25 September 2002

D. Teyssier*
Affiliation:
Laboratoire de radioastronomie millimétrique, URA 336 du CNRS, École normale supérieure et Observatoire de Paris, 24 rue Lhomond, 75005 Paris, France
M. Gerin
Affiliation:
Laboratoire de radioastronomie millimétrique, URA 336 du CNRS, École normale supérieure et Observatoire de Paris, 24 rue Lhomond, 75005 Paris, France
C. Kramer
Affiliation:
I. Physikalisches Inst., Univ. zu Köln, Zülpicherstr. 77, 50937 Köln, Germany
F. Helmich
Affiliation:
Space Research Organization of the Netherlands, PO Box 800, 9700 AV Groningen, The Netherlands
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Abstract

Although ground-based submm facilities havebeen operating since more than a decade now, very few information hasbeen collected at the lower frequencies offered by Herschel. Additional observations need to be conducted prior to launch to assessthe reliability of a given source to be used as calibrator forphotometry and/or spectroscopy.In this paper we present some of the drivers for the preparation ofsuch a database on the basis of pioneering and long-term observing campaigns.

Type
Research Article
Copyright
© EAS, EDP Sciences, 2002

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