Photolysis of diatomic molecules as a source of atoms in planetaryexospheres; Astronomy & Astrophysics; Vol. XX

Photolysis of diatomic molecules as a source of atoms in planetaryexospheres; Astronomy & Astrophysics; Vol. XX

Detalhes bibliográficos
Parent link:Astronomy & Astrophysics
Vol. XX.— 2019.— [36230, 12 p.]
Autor Corporativo: Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий
Outros Autores: Valiev R. R. Rashid Rinatovich, Berezhnoy A. A. Aleksey Andreevich, Gritsenko I. S. Irina Sergeevna, Merzlikin B. S. Boris Sergeevich, Cherepanov V. N. Viktor Nikolaevich, Kurten T. Teo, Wohler Ch. Christian
Resumo:Title screen
We calculated the cross sections of photolysis of OH, LiO, NaO, KO, HCl, LiCl, NaCl, KCl, HF, LiF, NaF, and KF molecules using quantum chemistry methods. The maximal values for photolysis cross sections of alkali metal monoxides are on the order of 10−18 cm2 . The lifetimes of photolysis for quiet Sun at 1 astronomical unit are estimated as 2.0×105 , 28, 5, 14, 2.1×105 , 225, 42, 52, 2×106 , 35400, 486, and 30400 s for OH, LiO, NaO, KO, HCl, LiCl, NaCl, KCl, HF, LiF, NaF, and KF, respectively. We performed a comparison between values of photolysis lifetimes obtained in this work and in previous studies. Based on such a comparison, our estimations of photolysis lifetimes of OH, HCl, and HF have an accuracy of about a factor of 2. We determined typical kinetic energies of main peaks of photolysis-generated metal atoms. Impact-produced LiO, NaO, KO, NaCl, and KCl molecules are destroyed in the lunar and Hermean exospheres almost completely during the first ballistic flight, while other considered molecules are more stable against destruction by photolysis.
Idioma:inglês
Publicado em: 2019
Assuntos:
электронный ресурс
труды учёных ТПУ
photolysis cross section
planetary exospheres
oxides
chlorides
fluorides
ab initio
Acesso em linha:https://doi.org/10.1051/0004-6361/201936230
Formato: Recurso Electrónico Capítulo de Livro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661329

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