Properties of meteors with double peaked light curves. (arXiv:1902.05931v1 [astro-ph.EP])
<a href="http://arxiv.org/find/astro-ph/1/au:+Subasinghe_D/0/1/0/all/0/1">Dilini Subasinghe</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Campbell_Brown_M/0/1/0/all/0/1">Margaret Campbell-Brown</a>
Twenty-one meteors showing double peaked light curves were analysed with
observations collected with the Canadian Automated Meteor Observatory tracking
system. Each event has orbital information, photometry, and at least one
high-resolution observation. Two distinct light curve shapes were found: sudden
double peaked curves, and smooth double peaked curves. The sudden peaked curves
were produced by objects on asteroidal orbits and mostly showed noticeable
fragmentation, while the smooth peaked curves were produced by cometary
meteoroids and predominantly showed little to no visible fragmentation. An
attempt to model these meteors as single bodies with two chemical components
was unsuccessful, implying that fragmentation must be included in meteoroid
ablation models.
Twenty-one meteors showing double peaked light curves were analysed with
observations collected with the Canadian Automated Meteor Observatory tracking
system. Each event has orbital information, photometry, and at least one
high-resolution observation. Two distinct light curve shapes were found: sudden
double peaked curves, and smooth double peaked curves. The sudden peaked curves
were produced by objects on asteroidal orbits and mostly showed noticeable
fragmentation, while the smooth peaked curves were produced by cometary
meteoroids and predominantly showed little to no visible fragmentation. An
attempt to model these meteors as single bodies with two chemical components
was unsuccessful, implying that fragmentation must be included in meteoroid
ablation models.
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