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<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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Astronomy Reports</journal-id><journal-title-group><journal-title xml:lang="en">Astronomy Reports</journal-title><trans-title-group xml:lang="ru"><trans-title>Астрономический журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0004-6299</issn><issn publication-format="electronic">3034-5170</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">647662</article-id><article-id pub-id-type="doi">10.31857/S0004629924080062</article-id><article-id pub-id-type="edn">ITDBFY</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Variations in the radiation intensity of the pulsar B0950+08: 9 years of monitoring at a frequency of 110 MHz</article-title><trans-title-group xml:lang="ru"><trans-title>Вариации интенсивности излучения пульсара В0950+08: 9 лет мониторинга на частоте 110 мГц</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Smirnova</surname><given-names>T. V.</given-names></name><name xml:lang="ru"><surname>Смирнова</surname><given-names>Т. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Astro space center, Pushchino radio astronomy observatory</p></bio><bio xml:lang="ru"><p>Астрокосмический центр, Пущинская радиоастрономическая обсерватория</p></bio><email>tania@prao.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Toropov</surname><given-names>M. O.</given-names></name><name xml:lang="ru"><surname>Торопов</surname><given-names>М. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>tania@prao.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tyul'bashev</surname><given-names>S. A.</given-names></name><name xml:lang="ru"><surname>Тюльбашев</surname><given-names>С. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Astro space center, Pushchino radio astronomy observatory</p></bio><bio xml:lang="ru"><p>Астрокосмический центр, Пущинская радиоастрономическая обсерватория</p></bio><email>tania@prao.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Lebedev Physical Institute</institution></aff><aff><institution xml:lang="ru">Физический институт им. П. Н. Лебедева</institution></aff></aff-alternatives><aff id="aff2"><institution>LLC TEK Inform</institution></aff><pub-date date-type="pub" iso-8601-date="2024-08-15" publication-format="electronic"><day>15</day><month>08</month><year>2024</year></pub-date><volume>101</volume><issue>8</issue><issue-title xml:lang="ru"/><fpage>753</fpage><lpage>763</lpage><history><date date-type="received" iso-8601-date="2025-01-28"><day>28</day><month>01</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, The Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">The Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0004-6299/article/view/647662">https://journals.eco-vector.com/0004-6299/article/view/647662</self-uri><abstract xml:lang="en"><p>The analysis of variations in the radiation intensity of the pulsar B0950+08 from 2014 to 2022 with scales from minutes to years was carried out. The observations were obtained in a round-the-clock daily survey conducted on the Large Phased Array (LPA) radio telescope. The high variability of radiation is shown not only from pulse to pulse, but also at scales greater than 3 min. The average value of the estimated amplitude of these variations in 3.2 minutes is 25 Jy, the modulation index is 1. The average relative amplitude of the interpulse (IP) is 2.00 ± 0.28 % of the main pulse. In individual pulses, the amplitude of the interpulse may exceed the amplitude of the main pulse (MP), but this is a rare event. Radiation is observed in almost the entire period of the pulsar. For the first time, the relative amplitude of radiation between the main pulse and the interpulse (radiation bridge) was measured. When averaging about 10 hours, it varies from 0.8% to 1.31% with an average value of 1.04 ± 0.28 %. A high correlation was found between MP and IP amplitude variations both when averaging profiles over 3.2 minutes and when averaging over years. This correlation is due to refractive interstellar scintillation. The frequency scale of IP diffraction interstellar scintillation was measured for the first time and it was shown that the spectral forms for IP and MP are well correlated and have the same frequency scale. There are strong variations in the frequency scale of scintillation <italic>f </italic><sub>dif </sub>from session to session (time interval from one day) on scales of 200–800 kHz. The refractive scale of scintillation for 1–2 days has been determined. A modulation of radiation with a characteristic scale of about 130 days was detected, which, apparently, is also associated with refractive scintillation.</p></abstract><trans-abstract xml:lang="ru"><p>Проведен анализ вариаций интенсивности излучения пульсара В0950+08 с 2014 по 2022 г. с масштабами от минут до лет. Наблюдения получены в круглосуточном ежедневном обзоре на радиотелескопе Большая синфазная антенна (БСА). Показана высокая переменность излучения не только от импульса к импульсу, но и на масштабах больше 3 мин. Среднее значение амплитуды этих вариаций за 3.2 мин равно 25 Ян, индекс модуляции равен 1. Средняя относительная амплитуда интеримпульса (IP) составляет 2.00 ± 0.28 % от главного импульса. В индивидуальных импульсах амплитуда интеримпульса может превышать амплитуду главного импульса (MP), однако это редкое событие. Излучение наблюдается на протяжении практически всего периода пульсара. Впервые измерена относительная амплитуда излучения между главным импульсом и интеримпульсом (мост излучения). При усреднении порядка 10 часов она меняется от 0.8% до 1.31% со средним значением 1.04 ± 0.28 % . Обнаружена высокая корреляция между вариациями амплитуды MP и IP как при усреднении профилей за 3.2 мин, так и при усреднении по годам. Эта корреляция обусловлена рефракционными межзвездными мерцаниями. Впервые измерен частотный масштаб дифракционных межзвездных мерцаний IP и показано, что формы спектра для IP и MP хорошо коррелируют и имеют одинаковый частотный масштаб. Наблюдаются сильные вариации частотного масштаба мерцаний <math xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mi>f</mi><mrow><mi>d</mi><mi>i</mi><mi>f</mi><mi>f</mi></mrow></msub></math> от сеанса к сеансу (временной интервал от одних суток) на масштабах 200–800 кГц. Определен рефракционный масштаб мерцаний, 1–2 дня. Обнаружена модуляция излучения с характерным масштабом порядка 130 дней, которая, по-видимому, также связана с рефракционными мерцаниями.</p></trans-abstract><kwd-group xml:lang="en"><kwd>interstellar scintillation</kwd><kwd>variability</kwd><kwd>pulsars</kwd><kwd>B0950+08</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>межзвездные мерцания</kwd><kwd>переменность</kwd><kwd>пульсары</kwd><kwd>В0950+08</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Российский научный фонд</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Science Foundation</institution></institution-wrap></funding-source><award-id>22-12-00236</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>T. H. Hankins and J. M. Cordes, 249, 241 (1981).</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>T. E. Perry and A. G. 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