On the variable meteor parameters

Details On the variable meteor parameters On the variable meteor parameters

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.495..271p&link_type=abstract

In: Proceedings of the Meteoroids 2001 Conference, 6 - 10 August 2001, Kiruna, Sweden. Ed.: Barbara Warmbein. ESA SP-495, Noordw

Physics

Meteors

Scientific paper

Problem of variable shape-density coefficient and ablation parameter is treated. Two new alternatives to approaches published so far are proposed. These alternatives make use of observed distances flown by meteoroid considered as a function of time and observed light curve also as a function of time. The first alternative deals with the case of quasi-isotropic ablation of a body while the second one considers its cross-sectional area to be general function of time. As a result, the time dependence of both parameters inferred from the observational data of 5 fireballs, is presented. As a byproduct, there is also determined the exponent, n, in the light efficiency dependence on meteoroid velocity, τ ~ vn, for each fireball.

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