Photolysis of diatomic molecules as a source of atoms in planetaryexospheres; Astronomy & Astrophysics; Vol. XX
| Parent link: | Astronomy & Astrophysics Vol. XX.— 2019.— [36230, 12 p.] |
|---|---|
| Erakunde egilea: | Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий |
| Beste egile batzuk: | 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 |
| Gaia: | 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. |
| Hizkuntza: | ingelesa |
| Argitaratua: |
2019
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| Gaiak: | |
| Sarrera elektronikoa: | https://doi.org/10.1051/0004-6361/201936230 |
| Formatua: | Baliabide elektronikoa Liburu kapitulua |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661329 |
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