Isophot Observations of Comet Hale-Bopp: Initial Data Reduction
/ Authors
E. Grün, S. Peschke, M. Stickel, T. Muller, H. Krüger, H. Böhnhardt, T. Brooke, H. Campins, J. Crovisier, M. Hanner
and 13 more authors
I. Heinrichsen, H. Keller, R. Knacke, P. Lamy, C. Leinert, D. Lemke, C. Lisse, M. Müller, D. Osip, M. Šolc, Mark V. Sykes, V. Vanýsek, J. Zarnecki
/ Abstract
Comet Hale-Bopp was observed five times with ISOPHOT, the photometer on board the Infrared Space Observatory (ISO). Each time broadband photometry was performed using 4 different detectors, 5 apertures and, 10 filters covering the range between 3.6 to 175 µ m. Calibration measurements using the internal Fine Calibration Source were done together with each individual measurement. Background ob- servations were