Photolysis of metal oxides as a source of atoms in planetary exospheres

Photolysis of metal oxides as a source of atoms in planetary exospheres

Bibliographic Details
Parent link:Planetary and Space Science
Vol. 145.— 2017.— [P. 38-48]
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра общей химии и химической технологии (ОХХТ)
Other Authors: Valiev R. R. Rashid Rinatovich, Berezhnoy A. A. Aleksey Anatoljevich, Sidorenko A. D. Anna Dmitrievna, Merzlikin B. S. Boris Sergeevich, Cherepanov V. N. Viktor Nikolaevich
Summary:Title screen
The cross sections of photolysis of LiO, NaO, KO, MgO, and CaO molecules have been calculated by the use of quantum chemistry methods. The maximal values for photolysis cross sections of alkali metal monoxides have the order of 10−17 cm2, and for alkaline earth metal monoxides these values are less on 1-2 orders of the magnitude. The lifetimes of photolysis at 1 astronomical unit are estimated as 5, 3, 60, 70, and 3,000 s for LiO, NaO, KO, MgO, and CaO, respectively. Typical kinetic energies of main peaks of photolysis-generated metal atoms are determined. Impact-produced LiO, NaO, KO, and MgO molecules are destroyed in the lunar and Hermean exospheres almost completely during the first ballistic flight while CaO molecule is more stable against destruction by photolysis. Photolysis-generated metal atoms in planetary exospheres can be detected by performing high-resolution spectral observations of velocity distribution of exospheric metal atoms.
Режим доступа: по договору с организацией-держателем ресурса
Published: 2017
Subjects:
электронный ресурс
труды учёных ТПУ
фотолиз
поперечные связи
планетарные тела
Online Access:https://doi.org/10.1016/j.pss.2017.07.011
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=655866

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