<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article
PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.4 20190208//EN"
       "JATS-journalpublishing1.dtd">
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" article-type="research-article" dtd-version="1.4" xml:lang="en">
 <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">86526</article-id>
   <article-id pub-id-type="doi">10.12737/szf-111202510</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">Features of correlation curves of the Siberian Radioheliograph</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Особенности корреляционных кривых Сибирского радиогелиографа</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0273-138X</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Уралов</surname>
       <given-names>Аркадий Михайлович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Uralov</surname>
       <given-names>Arkadiy Mihailovich</given-names>
      </name>
     </name-alternatives>
     <email>uralov@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 contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-1651-1259</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Лесовой</surname>
       <given-names>Сергей Владимирович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Lesovoi</surname>
       <given-names>Sergey Vladimirovich</given-names>
      </name>
     </name-alternatives>
     <email>lesovoi@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-2"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5308-6336</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Гречнев</surname>
       <given-names>Виктор Васильевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Grechnev</surname>
       <given-names>Victor Vasil'evich</given-names>
      </name>
     </name-alternatives>
     <email>grechnev@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-3"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9174-7350</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Глоба</surname>
       <given-names>Мария Викторовна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Globa</surname>
       <given-names>Mariia Viktorovna</given-names>
      </name>
     </name-alternatives>
     <email>globa@iszf.irk.ru</email>
     <bio xml:lang="ru">
      <p>аспирант физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>graduate student of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-4"/>
    </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>
   <aff-alternatives id="aff-2">
    <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>
   <aff-alternatives id="aff-3">
    <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>
   <aff-alternatives id="aff-4">
    <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="2025-03-26T00:00:00+03:00">
    <day>26</day>
    <month>03</month>
    <year>2025</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2025-03-26T00:00:00+03:00">
    <day>26</day>
    <month>03</month>
    <year>2025</year>
   </pub-date>
   <volume>11</volume>
   <issue>1</issue>
   <fpage>88</fpage>
   <lpage>97</lpage>
   <history>
    <date date-type="received" iso-8601-date="2024-08-15T00:00:00+03:00">
     <day>15</day>
     <month>08</month>
     <year>2024</year>
    </date>
    <date date-type="accepted" iso-8601-date="2024-12-11T00:00:00+03:00">
     <day>11</day>
     <month>12</month>
     <year>2024</year>
    </date>
   </history>
   <self-uri xlink:href="https://zh-szf.ru/en/nauka/article/86526/view">https://zh-szf.ru/en/nauka/article/86526/view</self-uri>
   <abstract xml:lang="ru">
    <p>Корреляционные кривые многочастотного Сибирского радиогелиографа (СРГ) — чувствительный индикатор и наглядная форма мониторинга микроволновой жизни активного Солнца. В статье приводится вывод оценочных соотношений и кратко обсуждается вклад в корреляционный отклик радиогелиографа спокойного Солнца, активных областей, радиовсплесков, спутников и атмосферного поглощения. Оценки получены в предположении, что центры активности и спокойное Солнце являются однородными дисками разных размеров и яркости. Чувствительность корреляционных кривых к слабым источникам малых угловых размеров обусловлена их широким пространственным спектром. Широкий спектр означает появление заметного интерферометрического отклика у каждой пары антенн, поэтому суммарный отклик существенен. Корреляционные кривые позволяют оценить пространственные размеры источника радиовсплеска на разных частотах, но не позволяют рассчитать форму его радиоспектра. Изменчивость во времени содержания воды в атмосфере создает колебания величины принимаемого потока солнечного радиоизлучения. Корреляционный отклик в значительно меньшей степени подвержен влиянию данного фактора.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Correlation curves of the multi-frequency Siberian Radioheliograph (SRH) provide a sensitive indication and demonstrative representation of monitoring the microwave life of the active Sun. We derive approximate relationships and briefly discuss the contribution of the quiet Sun, active regions, radio bursts, satellites, and atmospheric absorption to the radioheliograph’s correlation response. The estimates are obtained under the assumption that the activity centers and the quiet Sun are homogeneous disks of different sizes and brightness. The sensitivity of the correlation curves to weak sources of small angular sizes is due to their wide spatial spectrum. The wide spectrum means that each pair of antennas produces a noticeable interferometric response, so the total response is significant. The correlation curves allow us to estimate spatial sizes of the radio burst source at different frequencies, but do not allow us to calculate the shape of its radio spectrum. Variability in the atmospheric water content over time creates fluctuations of the received solar radio flux. The correlation response is much less susceptible to this factor.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>Солнце</kwd>
    <kwd>микроволновое излучение</kwd>
    <kwd>радиогелиограф</kwd>
    <kwd>корреляции</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>Sun</kwd>
    <kwd>microwave emission</kwd>
    <kwd>radioheliograph</kwd>
    <kwd>correlations</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>
 <body>
  <p></p>
 </body>
 <back>
  <ref-list>
   <ref id="B1">
    <label>1.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Алтынцев А.Т., Лесовой С.В., Глоба М.В. и др. Многоволновый Сибирский радиогелиограф. Солнечно-земная физика. 2020. Т. 6, № 2. С. 37–50. DOI: 10.12737/szf-62202003 // Altyntsev A.T., Lesovoi S.V., Globa M.V., et al. Multiwave Siberian Radioheliograph. Solar-Terrestrial Phys-ics. 2020, vol. 6, iss. 2, pp. 30–40. DOI: 10.12737/stp62202003.</mixed-citation>
     <mixed-citation xml:lang="en">Alpert J.L., Ginzburg V.L., Feinberg E.L. Rasprostranenie radiovoln [Radio Wave Propagation]. Moscow, GITTL, 1953, 884 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B2">
    <label>2.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Альперт Я.Л., Гинзбург В.Л., Фейнберг Е.Л. Распространение радиоволн. М.: ГИТТЛ, 1953. 884 с.</mixed-citation>
     <mixed-citation xml:lang="en">Altyntsev A.T., Lesovoi S.V., Globa M.V., Gubin A.V., Kochanov A.A., Grechnev V.V., Ivanov E.F., et al. Multiwave Siberian Radioheliograph. Solar-Terrestrial Physics. 2020, vol. 6, iss. 2, pp. 30–40. DOI: 10.12737/stp62202003.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B3">
    <label>3.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Градштейн И.С., Рыжик И.М. Таблицы интегралов, сумм, рядов и произведений. М.: Наука, 1971. 1108 с.</mixed-citation>
     <mixed-citation xml:lang="en">Borovik V.N. Quiet sun from multifrequency radio observations on RATAN-600. Adv. Solar Phys. 1994, vol. 432, pp. 185–190.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B4">
    <label>4.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Лесовой С.В., Кобец В.С. Корреляционные кривые Сибирского радиогелиографа. Солнечно-земная физика. 2017. Т. 3, № 1. С. 17–21. DOI: 10.12737/23588 // Lesovoi S.V., Kobets V.S. Correlation plots of the Siberian Radioheliograph. Solar-Terrestrial. Physics. 2017. Vol. 3, iss. 1. P. 19–25. DOI: 10.12737/article_58f96eeb8fa318.06122835</mixed-citation>
     <mixed-citation xml:lang="en">Fleishman G., Kontar E., Nita G., Gary D. Cold, Tenuous Solar Flare: Acceleration Without Heating. Astrophys. J. Lett. 2011, vol. 731, no. 1, pp. L19. DOI: 10.1088/2041-8205/731/1/L19.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B5">
    <label>5.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Лесовой С.В., Кобец В.С. Модель отклика Сибирского радиогелиографа на спокойное Солнце. Солнечно-земная физика. 2018. Т. 4, № 4. С. 106–113. DOI: 10.12737/szf-44201811 // Lesovoi S.V., Kobets V.S. Simulating Siberian Radioheliograph response to the quiet Sun. Solar-Terrestrial. Physics. 2018. Vol. 4, iss. 4. P. 82–87. DOI: 10.12737/stp-44201811.</mixed-citation>
     <mixed-citation xml:lang="en">Gradshtein I.S., Ryzhik I.M. Tables of Integrals, Series and Products. Moscow, Nauka, 1971, 1108 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B6">
    <label>6.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Степаненко В.Д., Щукин Г.Г., Бобылев Л.П., Матросов С.Ю. Радиотеплолокация в метеорологии. Л.: Гидрометеоиздат, 1987. 280 с.</mixed-citation>
     <mixed-citation xml:lang="en">Lesovoi S.V., Kobets V.S. Correlation plots of the Siberian Radioheliograph. Solar-Terrestrial Physics. 2017, vol. 3, iss. 1, pp. 19–25. DOI: 10.12737/article_58f96eeb8fa318.06122835</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B7">
    <label>7.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Томпсон А.Р., Моран Дж.М., Свенсон Дж.У. Интерферометрия и синтез в радиоастрономии. М.: Физматлит, 2003. 624 с.</mixed-citation>
     <mixed-citation xml:lang="en">Lesovoi S.V., Kobets V.S. Simulating Siberian Radioheliograph response to the quiet Sun. Solar-Terrestrial Physics. 2018, vol. 4, iss. 4, pp. 82–87. DOI: 10.12737/stp-44201811.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B8">
    <label>8.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Яворский Б.М., Детлаф А.А. Справочник по физике для инженеров и студентов вузов. М.: Наука, 1965. 850 с.</mixed-citation>
     <mixed-citation xml:lang="en">Stepanenko V.D., Shchukin G.G., Bobylev L.P., Matrosov S.Yu. Radioteplolokatsiya v meteorologii [Radiothermal Location in Meteorology]. Leningrad, Hydrometeoizdat, 1987, 280 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B9">
    <label>9.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Borovik V.N. Quiet sun from multifrequency radio observations on RATAN-600. Adv. Solar Phys. 1994. Vol. 432. P. 185–190.</mixed-citation>
     <mixed-citation xml:lang="en">Thompson A.R., Moran J.M, Swenson G.W. Jr. Interferometry and Synthesis in Radio Astronomy. New York: Wiley, 2001. 692 p. DOI: 10.1002/9783527617845.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B10">
    <label>10.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Fleishman G., Kontar E., Nita G., Gary D. Cold, Tenuous Solar Flare: Acceleration Without Heating. Astrophys. J. Lett. 2011. Vol. 731, no. 1. P. L19. DOI: 10.1088/2041-8205/731/1/L19.</mixed-citation>
     <mixed-citation xml:lang="en">Nakajima H., Nishio M., Enome S., Shibasaki K., Takano T., Hanaoka, Y., Torii, C., et al. The Nobeyama radioheliograph. IEEE Proc. 1994, vol. 82, no. 5, pp. 705–713.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B11">
    <label>11.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Nakajima H., Nishio M., Enome S., et al. The Nobeyama radioheliograph. IEEE Proc. 1994. Vol. 82. P. 705–713.</mixed-citation>
     <mixed-citation xml:lang="en">Yavorsky B.M., Detlaff A.A. Spravochnik po fizike dlya inzhenerov i studentov vuzov [Handbook of Physics For Engineers and University Students]. Moscow, Nauka, 1965. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B12">
    <label>12.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Zheleznyakov V.V. Radio emission of the sun and planets. International Series of Monographs in Natural Philosophy, Oxford: Pergamon Press, 1970.</mixed-citation>
     <mixed-citation xml:lang="en">Zheleznyakov V.V. Radio emission of the Sun and planets. International Series of Monographs in Natural Philosophy, Oxford: Pergamon Press. 1970.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B13">
    <label>13.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Zirin H., Baumert B.M., Hurford G.J. The microwave brightness temperature spectrum of the quiet Sun. Astrophys. J. 1991. Vol. 370. P. 779. DOI: 10.1086/169861.</mixed-citation>
     <mixed-citation xml:lang="en">Zirin H., Baumert B.M., Hurford G.J. The microwave brightness temperature spectrum of the quiet Sun. Astrophys. J. 1991, vol. 370, p. 779. DOI: 10.1086/169861.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B14">
    <label>14.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Zlotnik E.Ya. Theory of the Slowly Changing Component of Solar Radio Emission.I. Soviet Astronomy, 1968. Vol. 12. P. 245.</mixed-citation>
     <mixed-citation xml:lang="en">Zlotnik E.Ya. Theory of the Slowly Changing Component of Solar Radio Emission.I. Soviet Astronomy. 1968, vol. 12, p. 245.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B15">
    <label>15.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">URL: https://www.swpc.noaa.gov/ (дата обращения 12 августа 2024 г.).</mixed-citation>
     <mixed-citation xml:lang="en">URL: https://www.swpc.noaa.gov/ (accessed August 12, 2024).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B16">
    <label>16.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">URL: https://badary.iszf.irk.ru/ (дата обращения 12 августа 2024 г.).</mixed-citation>
     <mixed-citation xml:lang="en">URL: https://badary.iszf.irk.ru/ (accessed August 12, 2024).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B17">
    <label>17.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">URL: https://ckp-rf.ru/catalog/usu/4138190/ (дата обращения 12 августа 2024 г.).</mixed-citation>
     <mixed-citation xml:lang="en">URL: https://ckp-rf.ru/catalog/usu/4138190/ (accessed August 12, 2024).</mixed-citation>
    </citation-alternatives>
   </ref>
  </ref-list>
 </back>
</article>
