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Synchronic Band and its Implication in the Cometary Dust

Published online by Cambridge University Press:  12 April 2016

Jun-ichi Watanabe  and
Kimihiko Nishioka
Jun-ichi Watanabe
Affiliation:
National Astronomical Observatory of Japan, Mitaka, Tokyo, 181, Japan
Kimihiko Nishioka
Affiliation:
Olympus Optical Company Ltd., 1-43-2, Hatagaya, Shibuya-ku, Tokyo, 181, Japan

Abstract

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The unique morphology of the synchronic band in the cometary dust tail is explained by finite-lifetime fragment model (Nishioka and Watanabe, 1990). However, this model needs a severe restriction on the lifetime of the dust fragments;25-70 days (r = 1 A.U.). This implies that detailed analysis of the synchronic band may reveal physical properties of the cometary dust particles. In this paper, we suggest that the fragments in the synchronic band are relatively pure ice if they are not organic grains.

Type
Cometary Dust: Observations and Evolution
Information
International Astronomical Union Colloquium , Volume 126: Origin and Evolution of Interplanetary Dust , 1991 , pp. 253 - 256
Copyright
Copyright © Kluwer 1991

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