Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-26T20:24:32.069Z Has data issue: false hasContentIssue false
  • English
  • Français

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

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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

References

Akabane, T. (1983) ‘The secondary tail of Comet 1976VI West’, Pub. Astron. Soc. Japan, 35, 565–578.Google Scholar
Khare, B.N., Sagan, C., Arakawa, E.T., Suits, F., Callcott, T.A., and Williams, M.W. (1984) ‘Optical constants of organic Tholins produced in a simulated Titanian atmosphere:From soft X-ray to microwave frequencies’, Icarus, 60, 127–137.CrossRefGoogle Scholar
Lamy, P.L., and Perrin, J.-M. (1988) ‘Optical properties of organic grains: Implications for interplanetary and cometary dust’, Icarus, 76, 100–109.CrossRefGoogle Scholar
Mukai, T. (1986) ‘Analysis of a dirty water-ice model for cometary dust’, Astron. Astrophys., 164, 397–407.Google Scholar
Nishioka, K., and Watanabe, J. (1990) ‘Finite lifetime fragment model for synchronie band formation in dust tails of comets’, Icarus, 87, 403–411.CrossRefGoogle Scholar
Sekanina, Z., and Farrell, J.A. (1980) ‘The striated dust tail of Comet West 1976VI as a particle fragmentation phenomenon’, Astron. J., 85, 1538–1554.CrossRefGoogle Scholar