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ISO Observations of Interstellar Ices and Implications for Comets

Ehrenfreund, P.; Dartois, E.; Habing, H. J. +4 more

We report on first ISO observations of interstellar ices in the direction of the protostellar object RAFGL 7009S. Due to its extreme extinction this source represents a unique target for the detection of interstellar ices. Identified molecules include H₂O, CO, and CO₂together with¹³CO₂, CH₄, O…

ISOCAM Observations of the Comet P/Kopff Dust Trail

Reach, William T.; Boulanger, Francois; Sykes, Mark V. +3 more

We present the results of two scans through the dust trail of Comet P/Kopff made with ISOCAM on 26 March 1996. Positions behind the comet at mean anomalies of 0.5° and 1° less than the nucleus were imaged using the LW10 (IRAS Band 1, 12 µm) filter. The trail is clearly detected and appears to have varied since it was observed with the IRAS s…