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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Solar-Terrestrial Physics</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Solar-Terrestrial Physics</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">122586</article-id>
   <article-id pub-id-type="doi">10.12737/szf-122202612</article-id>
   <article-id pub-id-type="edn">cxkdhc</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">Possible errors in radio source parameters recovered by the fitting method related to anisotropy of the electron distribution</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Возможные погрешности в восстановленных методом фитирования параметрах радиоисточника, связанные с анизотропностью распределения электронов</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Смирнов</surname>
       <given-names>Дмитрий Александрович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Smirnov</surname>
       <given-names>Dmitriy Aleksandrovich</given-names>
      </name>
     </name-alternatives>
     <email>dmitriy.smirnov@unn.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Мельников</surname>
       <given-names>Виктор Федорович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Melnikov</surname>
       <given-names>Viktor Fedorovich</given-names>
      </name>
     </name-alternatives>
     <email>v.melnikov@gaoran.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-2"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Главная (Пулковская) астрономическая обсерватория РАН</institution>
     <city>Санкт-Петербург</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Central Astronomical Observatory at Pulkovo of RAS</institution>
     <city>St. Petersburg</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Главная (Пулковская) астрономическая обсерватория РАН</institution>
     <city>Санкт-Петербург</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Central Astronomical Observatory at Pulkovo of RAS</institution>
     <city>St. Petersburg</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <volume>12</volume>
   <issue>2</issue>
   <fpage>119</fpage>
   <lpage>123</lpage>
   <history>
    <date date-type="received" iso-8601-date="2025-11-14T00:00:00+03:00">
     <day>14</day>
     <month>11</month>
     <year>2025</year>
    </date>
    <date date-type="accepted" iso-8601-date="2026-03-03T00:00:00+03:00">
     <day>03</day>
     <month>03</month>
     <year>2026</year>
    </date>
   </history>
   <self-uri xlink:href="https://naukaru.ru/en/nauka/article/122586/view">https://naukaru.ru/en/nauka/article/122586/view</self-uri>
   <abstract xml:lang="ru">
    <p>В настоящей работе исследованы погрешности восстановления (радиодиагностики) параметров солнечных вспышек (магнитного поля, концентрации ускоренных электронов и др.) методом фитирования микроволновых спектров. Анализ погрешностей проводился путем диагностики двух модельных радиоисточников с известными заданными параметрами, в том числе с заданными параметрами анизотропии питч-углового распределения излучающих электронов. Сама диагностика проводилась с использованием генетического алгоритма минимизации. Показано, что использование традиционного подхода с предположением об изотропности питч-углового распределения электронов приводит к значительным систематическим ошибкам, в частности, к сильному занижению значений напряженности магнитного поля при наличии в реальном радиоисточнике продольной анизотропии питч-углового распределения электронов. При восстановлении же параметров с учетом возможной анизотропии точность восстановления заметно повышается.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>This paper examines errors in recovering (radio diagnostics) solar flare parameters (magnetic field, accelerated electron density, etc.) by fitting microwave spectra. The analysis was performed by diagnosing two model radio sources with known preset parameters, including given parameters of the pitch-angle anisotropy of emitting electrons. The diagnostics was carried out by a genetic minimization algorithm. It is shown that using the traditional approach on the assumption about isotropy of pitch angular distribution of electrons leads to significant systematic errors, in particular, to a strong underestimation of the magnetic field strength in the presence of longitudinal anisotropy of pitch angular distribution of electrons in a real radio source. When restoring the same parameters in view of possible anisotropy, the accuracy of the restoration increases markedly.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>солнечные вспышки</kwd>
    <kwd>радиогелиограф</kwd>
    <kwd>радиодиагностика</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>solar flares</kwd>
    <kwd>radioheliograph</kwd>
    <kwd>radio diagnostics</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Работа выполнена при поддержке гранта РНФ № 22-12-00308–П</funding-statement>
    <funding-statement xml:lang="en">The work was financially supported by RSF (grant No. 22-12-00308–P)</funding-statement>
   </funding-group>
  </article-meta>
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