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.] |
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| Autor corporatiu: | |
| Altres autors: | , , , , , , |
| Sumari: | 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: | anglès |
| Publicat: |
2019
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| Matèries: | |
| Accés en línia: | https://doi.org/10.1051/0004-6361/201936230 |
| Format: | MixedMaterials Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661329 |
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| 200 | 1 | |a Photolysis of diatomic molecules as a source of atoms in planetaryexospheres |f R. R. Valiev [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 330 | |a 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. | ||
| 461 | |t Astronomy & Astrophysics | ||
| 463 | |t Vol. XX |v [36230, 12 p.] |d 2019 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a photolysis cross section | |
| 610 | 1 | |a planetary exospheres | |
| 610 | 1 | |a oxides | |
| 610 | 1 | |a chlorides | |
| 610 | 1 | |a fluorides | |
| 610 | 1 | |a ab initio | |
| 701 | 1 | |a Valiev |b R. R. |c chemist |c Assistant of Tomsk Polytechnic University |f 1983- |g Rashid Rinatovich |3 (RuTPU)RU\TPU\pers\34114 | |
| 701 | 1 | |a Berezhnoy |b A. A. |g Aleksey Andreevich | |
| 701 | 1 | |a Gritsenko |b I. S. |g Irina Sergeevna | |
| 701 | 1 | |a Merzlikin |b B. S. |c mathematician |c research engineer, Senior Lecturer of Tomsk Polytechnic University, candidate of physico-mathematical Sciences |f 1987- |g Boris Sergeevich |9 15163 | |
| 701 | 1 | |a Cherepanov |b V. N. |g Viktor Nikolaevich | |
| 701 | 1 | |a Kurten |b T. |g Teo | |
| 701 | 1 | |a Wohler |b Ch. |g Christian | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Исследовательская школа химических и биомедицинских технологий |c (2017- ) |3 (RuTPU)RU\TPU\col\23537 |
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| 856 | 4 | |u https://doi.org/10.1051/0004-6361/201936230 | |
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