Bolide physical theory with application to PN and EN fireballs

Details Bolide physical theory with application to PN and EN fireballs Bolide physical theory with application to PN and EN fireballs

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.495..507r&link_type=abstract

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

Physics

10

Bolides, Fireballs, Physics

Scientific paper

Using data on 22 "precise bolides" with up to 882 individual points on their trajectories and using data on 29 "bright bolides" and on 10 artificial meteors we tried to derive the dependence of the ablation and shape-density coefficients, and of the luminous efficiency on various time dependent parameters. The only significant dependence we found was that on v∞-v (the difference of the initial and instantaneous velocities). We present the results as Eq's 3, 4 and 8, with coefficients a1, a2, a3, a4, b1, b2, b3, c1, c2 have been computed for a number of different bolide types. Also, the average values of the ablation, and shape-density coefficients as well as the average luminous efficiencies for individual bolide types are given.

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