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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">647500</article-id><article-id pub-id-type="doi">10.31857/S0004629923020081</article-id><article-id pub-id-type="edn">CKTDBW</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">On the Possibility of Observing Nitric Oxide on Terrestrial Exoplanets Using the WSO-UV Observatory</article-title><trans-title-group xml:lang="ru"><trans-title>О возможности наблюдения окиси азота на экзопланетах земного типа с помощью обсерватории WSO-UV (Спектр-УФ)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tsurikov</surname><given-names>G. N.</given-names></name><name xml:lang="ru"><surname>Цуриков</surname><given-names>Г. Н.</given-names></name></name-alternatives><email>grishatsurikov9826@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bisikalo</surname><given-names>D. V.</given-names></name><name xml:lang="ru"><surname>Бисикало</surname><given-names>Д. В.</given-names></name></name-alternatives><email>grishatsurikov9826@yandex.ru</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Astronomy, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт астрономии РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">NCPM</institution></aff><aff><institution xml:lang="ru">НЦФМ</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-02-01" publication-format="electronic"><day>01</day><month>02</month><year>2023</year></pub-date><volume>100</volume><issue>2</issue><fpage>144</fpage><lpage>165</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, Г.Н. Цуриков, Д.В. Бисикало</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Г.Н. Цуриков, Д.В. Бисикало</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Г.Н. Цуриков, Д.В. Бисикало</copyright-holder><copyright-holder xml:lang="ru">Г.Н. Цуриков, Д.В. Бисикало</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0004-6299/article/view/647500">https://journals.eco-vector.com/0004-6299/article/view/647500</self-uri><abstract xml:lang="en"><p>It is generally believed that the presence of a N2−O2-dominant atmosphere is an indication of biological and geological activity on terrestrial exoplanets that are in the habitable region. One of indicators of such an atmosphere is the nitric oxide (NO) molecule. It is known from satellite observations of the Earth’s atmosphere that the brightest nitric oxide band in the ultraviolet range is the γ band (203–248 nm). Space telescopes such as the existing HST and the upcoming WSO-UV can observe in this spectral range. The paper presents estimates of the luminosity of various exoplanets in the NO γ band. It has been established that the detection of NO emission in the γ band in the atmospheres of typical terrestrial exoplanets is possible using the spectrographs of the WSO-UV observatory within a reasonable observational time (5 WSO-UV orbits or 120 observation hours).</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181323134592">Принято считать, что наличие \({{{\text{N}}}_{2}}{\kern 1pt} - {\kern 1pt} {{{\text{O}}}_{2}}\) доминантной атмосферы является признаком биологической и геологической активности на экзопланетах земного типа, которые находятся в зоне потенциальной обитаемости. Одним из индикаторов такой атмосферы является молекула окиси азота NO. Из спутниковых наблюдений атмосферы Земли известно, что наиболее яркой полосой окиси азота в ультрафиолетовом диапазоне является \({\text{\gamma }}\)-полоса (203–248 нм). Космические телескопы, такие как действующий HST и планируемый к запуску WSO-UV (Спектр-УФ), позволяют наблюдать в данном спектральном диапазоне. В работе приведены оценки светимости различных экзопланет в \({\text{\gamma }}\)-полосе NO. Установлено, что обнаружение эмиссии NO в γ-полосе в атмосферах типичных экзопланет земного типа возможно с помощью спектрографов обсерватории WSO-UV (Спектр-УФ) за разумное наблюдательное время (5 орбит Спектр-УФ или 120 ч наблюдений).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>экзопланеты земного terrestrial exoplanets</kwd><kwd>exoplanet atmospheres</kwd><kwd>biomarkers</kwd><kwd>WSO-UVтипа</kwd><kwd>атмосферы экзопланет</kwd><kwd>биомаркеры</kwd><kwd>Спектр-УФ</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>H. Lammer, L. Sproß, J. L. Grenfell, M. Scher, et al., Astrobiology 19, 7 (2019).</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>E. E. Stüeken, M. A. Kipp, M. C. Koehler, E. W. Schwieterman, et al., Astrobiology 16 (2016a).</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>L. Sproß, M. Scherf, V. I. Shematovich, D. V. Bisikalo, and H. 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