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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Solnechno-Zemnaya Fizika</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Solnechno-Zemnaya Fizika</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Солнечно-земная физика</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">2712-9640</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">50004</article-id>
   <article-id pub-id-type="doi">10.12737/szf-83202209</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Результаты  исследований</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Results of current research</subject>
    </subj-group>
    <subj-group>
     <subject>Результаты  исследований</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Color and spectral characteristics of long-lived meteor trail formed by the Tunka bolide</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Цветовые и спектральные характеристики долгоживущего метеорного следа, образованного Тункинским болидом</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Михалев</surname>
       <given-names>Александр Васильевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Mikhalev</surname>
       <given-names>Aleksandr Vasilyevich</given-names>
      </name>
     </name-alternatives>
     <email>mikhalev@iszf.irk.ru</email>
     <bio xml:lang="ru">
      <p>доктор физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Институт солнечно-земной физики СО РАН</institution>
     <city>Иркутск</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Institute of Solar Terrestrial Physics SB RAS</institution>
     <city>Irkutsk</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2022-09-30T20:55:38+03:00">
    <day>30</day>
    <month>09</month>
    <year>2022</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2022-09-30T20:55:38+03:00">
    <day>30</day>
    <month>09</month>
    <year>2022</year>
   </pub-date>
   <volume>8</volume>
   <issue>3</issue>
   <fpage>62</fpage>
   <lpage>67</lpage>
   <history>
    <date date-type="received" iso-8601-date="2022-04-27T00:00:00+03:00">
     <day>27</day>
     <month>04</month>
     <year>2022</year>
    </date>
    <date date-type="accepted" iso-8601-date="2022-06-27T00:00:00+03:00">
     <day>27</day>
     <month>06</month>
     <year>2022</year>
    </date>
   </history>
   <self-uri xlink:href="https://zh-szf.ru/en/nauka/article/50004/view">https://zh-szf.ru/en/nauka/article/50004/view</self-uri>
   <abstract xml:lang="ru">
    <p>В работе обсуждаются цветовые характеристики и возможный спектральный состав излучения долгоживущего (~40 мин) метеорного следа необычной геометрической формы, образованного пролетом болида в Тункинской долине 17 ноября 2017 г. Анализ динамики RGB-каналов цветного изображения метеорного следа показал, что в излучение метеорного следа примерно в первые восемь минут мог вносить вклад ионизационный след, который образовался нагретыми до высоких температур на поверхности основного метеороида и отделившимися от него частицами нейтральных и ионизованных компонент метеорного вещества. Рассмотрен также обсуждаемый в литературе механизм гетерогенных химических реакций, происходящих на поверхности метеорной пыли (FeS, FeO и др.) с участием атомов и молекул атмосферных газов. Было высказано предположение, что желтоватый оттенок метеорного следа Тункинского болида в первую очередь определялся излучением полос молекулярного азота N₂ в спектральном диапазоне 570–750 нм (1-я положительная система) и/или усилением континуума NO*₂ в гетерогенных химических реакциях. В спектре излучения метеорного следа должны присутствовать также относительно яркие атомарные линии и молекулярные полосы метеорного вещества и атмосферных газов FeI, MgI, CaI, SiI, NaI, FeO и SO₂, OI, ОН и др.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The paper addresses color characteristics and possible spectral composition of emission of a long-lived (~40 min) meteor trail of uncommon geometry, which was formed due to the bolide passage in the Tunka Valley on November 17, 2017. Analysis of dynamics of RGB channels of the meteor trail colored image shows that during the first ~8 minutes the meteor trail emission might have been contributed by the ionization trail. The ionization trail was formed by particles of the meteor matter neutral and ionized components that were heated to high temperatures on the surface of the main meteoroid and separated from it. We also examine the discussed mechanism of heterogeneous chemical reactions occurring on the surface of meteoric dust (FeS, FeO, etc.) with participation of atoms and molecules of atmospheric gases. The yellowish color of the Tunka bolide meteor trail was assumed to be determined, first of all, by the emission of molecular nitrogen N₂ band within the 570–750 nm spectral range (the first positive system) and/or enhancement of NO*₂ continuum in heterogeneous chemical reactions. The meteor trail emission spectrum should also include relatively bright atomic lines and molecular bands of the meteoric matter and atmospheric gases FeI, MgI, CaI, SiI, NaI, FeO and SO₂, OI, OH, etc.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>болид</kwd>
    <kwd>долгоживущий метеорный след</kwd>
    <kwd>цвет метеорного следа</kwd>
    <kwd>спектры метеоров</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>bolide</kwd>
    <kwd>long-lived meteor trail</kwd>
    <kwd>meteor trail color</kwd>
    <kwd>meteor spectra</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Минобрнауки России</funding-statement>
    <funding-statement xml:lang="en">The work was financially supported by the Ministry of Science and Higher Education of the Russian Federation</funding-statement>
   </funding-group>
  </article-meta>
 </front>
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