We gratefully acknowledge the funding of the ISOPHOT experiment by the Deutsche Agentur für Raumfahrtangelegenheiten (DARA) and financial support for this research project by the Max-Planck Society, the University of Helsinki Research Fund, and the Academy of Finland (Grant No. 1011055). We are grateful to members of the ISOPHOT Data Centre at MPIA, Heidelberg, for help during the data analysis as well as to members of the ISOPHOT Instrument Dedicated Team at VILSPA for support in the calibration of the wide beams.
© European Southern Observatory (ESO) 1998
Online publication: February 16, 1998