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The dynamical structure of meteor streams and meteor shower predictions

Published online by Cambridge University Press:  28 February 2005

David J. Asher
David J. Asher
Affiliation:
Armagh Observatory, College Hill, Armagh, BT61 9DG, United Kingdom email: dja@arm.ac.uk
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Abstract

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Meteor streams that form as a result of cometary activity around perihelion consist of both structured and background components. The former are often referred to as trails. A trail is created at each perihelion passage as a result of the meteoroids' range of orbital periods. Trail locations can be precisely calculated by numerical integrations, allowing predictions of meteor outbursts and storms. The initial distribution of meteoroids, which relates to the meteor shower profile, depends on the meteoroid production rate and ejection velocity distribution as functions of heliocentric distance and on solar radiation pressure. The profile can gradually evolve owing to other radiative forces. This paper reviews such work on these aspects of shower predictions.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Keywords

Celestial mechanicsmethods: numericalmeteorsmeteoroids
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUC197 , August 2004 , pp. 375 - 382
Copyright
© 2005 International Astronomical Union