کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8142400 | 1523889 | 2018 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The CaO orange system in meteor spectra
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فیزیک زمین (ژئو فیزیک)
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چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Planetary and Space Science - Volume 151, February 2018, Pages 27-32
Journal: Planetary and Space Science - Volume 151, February 2018, Pages 27-32
نویسندگان
A.A. Berezhnoy, J. BoroviÄka, J. Santos, J.F. Rivas-Silva, L. Sandoval, A.V. Stolyarov, A. Palma,