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Case for a Ground-Based Preparatory Program for HIFI Calibration Sources
Published online by Cambridge University Press: 25 September 2002
Abstract
Although ground-based submm facilities have been operating since more than a decade now, very few information has been collected at the lower frequencies offered by Herschel. Additional observations need to be conducted prior to launch to assess the reliability of a given source to be used as calibrator for photometry and/or spectroscopy. In this paper we present some of the drivers for the preparation of such a database on the basis of pioneering and long-term observing campaigns.
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- © EAS, EDP Sciences, 2002