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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">647681</article-id><article-id pub-id-type="doi">10.31857/S0004629924120033</article-id><article-id pub-id-type="edn">ICTJRV</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">Influence of departures from LTE on determinations of the sulphur abundances in A–K type stars</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние отклонений от ЛТР на определения содержания серы у звезд спектральных типов A–K</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Korotin</surname><given-names>S. A.</given-names></name><name xml:lang="ru"><surname>Коротин</surname><given-names>С. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>serkor1@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kiselev</surname><given-names>K. O.</given-names></name><name xml:lang="ru"><surname>Киселев</surname><given-names>К. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>serkor1@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Crimean Astrophysical Observatory</institution></aff><aff><institution xml:lang="ru">Крымская астрофизическая обсерватория Российской академии наук</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2024</year></pub-date><volume>101</volume><issue>12</issue><fpage>1050</fpage><lpage>1067</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/647681">https://journals.eco-vector.com/0004-6299/article/view/647681</self-uri><abstract xml:lang="en"><p>The influence of departures from local thermodynamic equilibrium on neutral sulfur lines is considered. A grid of corrections is proposed to take into account the influence of departures from LTE for neutral sulfur lines in the visible and infrared spectral regions, including the <italic>H</italic>-band. The grid is calculated using the atomic model of sulfur incorporating the most up-to-date collision rates with electrons and hydrogen. The inclusion of levels and transitions of ionized sulfur in the atomic model made it possible to expand the range of effective temperatures of stellar photospheres in the grid, up to 10 000 K. The atomic model was tested in determining the sulfur abundance of 13 stars and showed its adequacy in a wide range of fundamental stellar parameters. In the spectra of all test stars, the sulfur lines are fitted with similar abundances of the element, regardless of the degree of influence of the effects of deviation from LTE on a particular spectral line. For lines of several multiplets, the wavelengths and oscillator strengths were refined. A list of S I lines recommended for determining sulfur abundance has been created.</p></abstract><trans-abstract xml:lang="ru"><p>Рассмотрено влияние отклонений от локального термодинамического равновесия на линии нейтральной серы. Предложена сетка поправок для учета влияния отклонений от ЛТР для линий нейтральной серы в видимой и инфракрасной области спектра, включая <italic>H</italic>-диапазон. Сетка рассчитана с использованием модели атома серы, включающей наиболее современные атомные данные об ударных скоростях с электронами и водородом. Включение в детальное рассмотрение в модель атома уровней и переходов ионизованной серы позволило расширить диапазон эффективных температур звездных фотосфер в сетке до 10 000 К. Модель атома была протестирована при определении содержания серы у 13 звезд и показала свою адекватность в широком диапазоне фундаментальных звездных параметров. В спектрах всех тестовых звезд линии серы описываются близким содержанием элемента вне зависимости от степени влияния эффектов отклонения от ЛТР на конкретную спектральную линию. Для линий нескольких мультиплетов были уточнены длины волн и величины сил осцилляторов. Создан список линий S I, рекомендуемый для определения содержания серы.</p></trans-abstract><kwd-group xml:lang="en"><kwd>line formation</kwd><kwd>line profiles of stars</kwd><kwd>elemental abundances on the Sun</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>формирование линий</kwd><kwd>профили линий звезд</kwd><kwd>содержания элементов на Солнце</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>M. Limongi and A. Chieffi, Astrophys. J. 592, 404 (2003), arXiv:astro-ph/0304185.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>C. Kobayashi, A.I. Karakas, and M. Lugaro, Astrophys. 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