The CaO orange system in meteor spectra

被引：17

作者：

Berezhnoy, A. A. ^{[1
]}

Borovicka, J. ^{[2
]}

Santos, J. ^{[3
]}

Rivas-Silva, J. F. ^{[3
]}

Sandoval, L. ^{[4
]}

Stolyarov, A. V. ^{[5
]}

Palma, A. ^{[3
]}

机构：

[1] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Univ Skij Pr 13, Moscow 119234, Russia

[2] Czech Acad Sci, Astron Inst, Fricova St 298, CZ-25165 Ondrejov, Czech Republic

[3] Benemerita Univ Autonoma Puebla, Inst Fis, Apdo Postal J-48, Puebla 72570, Pue, Mexico

[4] Benemerita Univ Autonoma Puebla, Fac Ciencias Comp, Apdo Postal 589, Puebla 72001, Pue, Mexico

[5] Moscow MV Lomonosov State Univ, Dept Chem, Leninskie Gory 1-3, Moscow 119991, Russia

来源：

PLANETARY AND SPACE SCIENCE | 2018年 / 151卷

关键词：

CaO orange system; Meteor spectra; Chemistry of impact events; BENESOV BOLIDE SPECTRA; MOLECULAR CLOUDS; BANDS; EXOSPHERE; DEPERTURBATION; ATMOSPHERE; RADIATION; IMPACTS; MERCURY; SEARCH;

D O I：

10.1016/j.pss.2017.10.007

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The CaO orange band system was simulated in the region 5900-6300 angstrom and compared with the experimentally observed spectra of Benesov 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 Bendov bolide at the height of 29 km was estimated as (5 +/- 2) x 10(14) cm(-2) by a comparison of the present CaO spectra with the MO bands nicely observed at 4600-5200 angstrom 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.

引用

页码：27 / 32

页数：6

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