Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986mnras.218..185s&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 218, Jan. 15, 1986, p. 185-199.
Astronomy and Astrophysics
Astrophysics
26
Celestial Mechanics, Collisions, Meteoroids, Orbital Elements, Solar Orbits, Zodiacal Dust, Eccentric Orbits, Inclination, Life (Durability), Meteoroid Showers
Scientific paper
The lifetimes of meteoroids against catastrophic collisions with zodiacal dust particles is evaluated for specific orbits, including, for the first time, the effect of the orbital inclination. A simple fan model of the form r exp -1.3 (1-sin beta) is used for the zodiacal cloud, where r is the solar distance and beta the ecliptic latitude. Although the results are for meteoroids of radius 1 mm, the collisional lifetimes for larger or smaller bodies can be found by the application of simple scaling factors. The figures can be used to estimate the collisional lifetime of any meteoroid in any particular orbit. The collisional lifetimes of 28 well known streams are also calculated. Finally, an alternative method for the calculation of the spatial density of an object in an arbitrary orbit is presented.
Elford Graham W.
Steel D. I.
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