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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="other" 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">647503</article-id><article-id pub-id-type="doi">10.31857/S0004629923030027</article-id><article-id pub-id-type="edn">PNLMUF</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>Unknown</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Observations of Hydroxyl in the Onsala 1 Source at 18 cm</article-title><trans-title-group xml:lang="ru"><trans-title>Наблюдения гидроксила в диапазоне 18 см в источнике ONSALA 1</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ashimbaeva</surname><given-names>N. T.</given-names></name><name xml:lang="ru"><surname>Ашимбаева</surname><given-names>Н. Т.</given-names></name></name-alternatives><email>lekht@sai.msu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lekht</surname><given-names>E. E.</given-names></name><name xml:lang="ru"><surname>Лехт</surname><given-names>Е. Е.</given-names></name></name-alternatives><email>lekht@sai.msu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Krasnov</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Краснов</surname><given-names>В. В.</given-names></name></name-alternatives><email>lekht@sai.msu.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tolmachev</surname><given-names>A. M.</given-names></name><name xml:lang="ru"><surname>Толмачев</surname><given-names>А. М.</given-names></name></name-alternatives><email>lekht@sai.msu.ru</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Lomonosov Moscow State University, P.K. Sternberg State Astronomical Institute</institution></aff><aff><institution xml:lang="ru">Московский государственный университет им. М.В. Ломоносова, 
Государственный астрономический институт им. П.К. Штернберга</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Astrospace Center of the P.N. Lebedev Physical Institute, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Астрокосмический центр Физического института им. П.Н. Лебедева РАН</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Pushchino Radio Astronomy Observatory, Astrospace Center of the P.N. Lebedev Physical Institute, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Пущинская радиоастрономическая обсерватория, 
Астрокосмический центр Физического института им. П.Н. Лебедева РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-03-01" publication-format="electronic"><day>01</day><month>03</month><year>2023</year></pub-date><volume>100</volume><issue>3</issue><fpage>233</fpage><lpage>242</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 ©; 2023, Н.Т. Ашимбаева, Е.Е. Лехт, В.В. Краснов, А.М. Толмачев</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Н.Т. Ашимбаева, Е.Е. Лехт, В.В. Краснов, А.М. Толмачев</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Н.Т. Ашимбаева, Е.Е. Лехт, В.В. Краснов, А.М. Толмачев</copyright-holder><copyright-holder xml:lang="ru">Н.Т. Ашимбаева, Е.Е. Лехт, В.В. Краснов, А.М. Толмачев</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0004-6299/article/view/647503">https://journals.eco-vector.com/0004-6299/article/view/647503</self-uri><abstract xml:lang="en"><p>We present results of polarization observations of the ON 1 source in the 1665, 1667, and 1612 MHz hydroxyl lines at the Large Radio Telescope in Nançay (France). Spatial identification of the spectral features of OH in the 1665 and 1667 MHz lines with maser spots (condensations) on the VLBI map according to the data of Fish et al. (2005) was carried out. Emission from hitherto unknown spectral features in the 1665 MHz main line at radial velocities of –2.98, 9.35, and 11.8 km/s has been detected. Five Zeeman pairs were found: four in the 1665 MHz line and one in the 1667 MHz line. The vectors of the transverse magnetic field H⊥ are oriented mainly along the arc (in the upper and lower parts of the UC H II region), while the vectors of the longitudinal magnetic field H|| in the northern and central parts of the UC H II region are oriented away from the observer, while in the southern part toward the observer.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181325271056">Приведены результаты поляризационных наблюдений источника ON 1 в линиях гидроксила 1665, 1667 и 1612 МГц на Большом радиотелескопе в Нансэ (Франция). Проведено пространственное отождествление спектральных деталей OH в линиях 1665 и 1667 МГц с мазерными пятнами (конденсациями) на VLВI карте по данным Фиша и др. (2005). Обнаружено излучение от неизвестных ранее спектральных деталей в главной линии 1665 МГц на лучевых скоростях –2.98, 9.35 и 11.8 км/с. Найдено пять Зеемановских пар: четыре в линии 1665 МГц и одна в линии 1667 МГц. Векторы поперечного магнитного поля H<sub>⊥</sub> ориентированы, в основном, вдоль дуги (в верхней и нижней частях области UC H II), а векторы продольного магнитного поля H<sub>||</sub> ориентированы в северной и центральной частях области UC H II от наблюдателя, а в южной – к наблюдателю.</p></trans-abstract><kwd-group xml:lang="en"><kwd>star formation</kwd><kwd>OH masers</kwd><kwd>polarization</kwd><kwd>magnetic field</kwd><kwd>individual objects (ON1)</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>звездообразование</kwd><kwd>мазеры OH</kwd><kwd>поляризация</kwd><kwd>магнитное поле</kwd><kwd>индивидуальные объекты (ON1)</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>G. C. MacLeod, E. Jr. Scalise, S. Saedt, J. A. Galt, and M. J. Gaylard, Astron. J. 116, 1897 (1998).</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>M. S. N. Kumar, M. Tafalla, and R. 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