BOLIDE PHYSICAL THEORY WITH APPLICATION TO PN AND EN FIREBALLS

摘要

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 ν_∞ - ν (the difference of the initial and instantaneous velocities). We present the results as Eq's 3, 4 and 8, with coefficients a_1, a_2, a_3, a_4, b_1, b_2, b_3,c_1, c_2 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.