Theoretical Leonid entry modeling

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In this work we present a model originally developed by ReVelle (1979, 1993) that has been applied to model large Leonid bolides with a few relatively minor modifications and one major modification which allows for catastrophic 'pancake: fragmentation processes as described below. The minor modifications include allowing the energy of ablation per unit mass for vaporization, Qvap, to be a free variable that is adjusted until agreement is obtained between the theoretical model and the statistically expected ablation coefficient for the Leonids (Group IIIB type bolide). It was found that the Qvap had to be reduced by a factor of ... continued below

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7 p.

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ReVelle, D. O. (Douglas O.) January 1, 2001.

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Description

In this work we present a model originally developed by ReVelle (1979, 1993) that has been applied to model large Leonid bolides with a few relatively minor modifications and one major modification which allows for catastrophic 'pancake: fragmentation processes as described below. The minor modifications include allowing the energy of ablation per unit mass for vaporization, Qvap, to be a free variable that is adjusted until agreement is obtained between the theoretical model and the statistically expected ablation coefficient for the Leonids (Group IIIB type bolide). It was found that the Qvap had to be reduced by a factor of about five times compared to the accepted value of Qvap for cometary materials. Alternative ways of achieving this degree of agreement between theory and observations are also suggested as well. In a separate paper we apply this model to a specific Leonid bolide during the 1998 storm period.

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7 p.

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  • Submitted to: Meteoroids 2001, Kiruna, Sweden August 6-10, 2001

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  • Report No.: LA-UR-01-5649
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 975808
  • Archival Resource Key: ark:/67531/metadc929468

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 2001

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 1:40 p.m.

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ReVelle, D. O. (Douglas O.). Theoretical Leonid entry modeling, article, January 1, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc929468/: accessed November 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.