All comets are born equal ] infrared emission by dust as a key to comet nucleus composition 0
نویسنده
چکیده
The infrared emission of various comets can be matched within the framework that all comets are made of aggregated interstellar dust[ This is demonstrated by comparing results on Halley "a periodic comet#\ Borrelly "a Jupiter family short period comet#\ HaleÐ Bopp "a long period comet#\ and extra!solar comets in the b Pictoris disk[ Attempts have been made to generalize the chemical composition of comet nuclei based on the observation of cometary dust and volatiles and the interstellar dust model[ Finally\ we deduce some of the expected dust and surface properties of comet Wirtanen from the interstellar dust model as applied to other comets[ Þ 0888 Elsevier Science Ltd[ All rights reserved[
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