Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8142400 | Planetary and Space Science | 2018 | 13 Pages |
Abstract
The CaO orange band system was simulated in the region 5900-6300Â Ã
and compared with the experimentally observed spectra of BeneÅ¡ov bolide wake. The required vibronic Einstein emission coefficients were estimated by means of the experimental radiative lifetimes under the simplest Franck-Condon approximation. A moderate agreement was achieved, and the largest uncertainties come from modeling shape of FeO orange bands. Using a simple model the CaO column density in the wake of the BeneÅ¡ov bolide at the height of 29 km was estimated as (5 ± 2) Ã 1014 cmâ2 by a comparison of the present CaO spectra with the AlO bands nicely observed at 4600-5200 Ã
in the same spectrum. The obtained CaO content is in a good agreement with the quenching model developed for the impact-produced cloud, although future theoretical and experimental studies of both CaO and FeO orange systems contribution would be needed to confirm these results.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geophysics
Authors
A.A. Berezhnoy, J. BoroviÄka, J. Santos, J.F. Rivas-Silva, L. Sandoval, A.V. Stolyarov, A. Palma,