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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">647560</article-id><article-id pub-id-type="doi">10.31857/S000462992310002X</article-id><article-id pub-id-type="edn">SSGKWV</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></subject></subj-group></article-categories><title-group><article-title xml:lang="en">KINETIC MODEL OF THE STELLAR WIND FORCING ON THE EXTENDED HYDROGEN ATMOSPHERE OF THE EXOPLANEt π Men c</article-title><trans-title-group xml:lang="ru"><trans-title>Кинетическая модель воздействия звездного ветра на протяженную водородную атмосферу экзопланеты π Men c</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Avtaeva</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Автаева</surname><given-names>А. А.</given-names></name></name-alternatives><email>astrep@pleiadesonline.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shematovich</surname><given-names>V. I.</given-names></name><name xml:lang="ru"><surname>Шематович</surname><given-names>В. И.</given-names></name></name-alternatives><email>astrep@pleiadesonline.com</email><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><pub-date date-type="pub" iso-8601-date="2023-10-01" publication-format="electronic"><day>01</day><month>10</month><year>2023</year></pub-date><volume>100</volume><issue>10</issue><fpage>858</fpage><lpage>870</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, А.А. Автаева, В.И. Шематович</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, А.А. Автаева, В.И. Шематович</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">А.А. Автаева, В.И. Шематович</copyright-holder><copyright-holder xml:lang="ru">А.А. Автаева, В.И. Шематович</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0004-6299/article/view/647560">https://journals.eco-vector.com/0004-6299/article/view/647560</self-uri><abstract xml:lang="en"><p id="idm45257552750640">In this paper, an extension of the kinetic model of the aeronomy of the upper atmosphere of an exoplanet is performed by including the processes of the effect of stellar wind plasma on the extended hydrogen corona of a hot sub-neptune. For this purpose, previously developed kinetic Monte Carlo models were used to study the precipitation of protons and hydrogen atoms with high energies into planetary atmospheres. The kinetic model is adapted to the upper atmospheres of hot sub-neptunes, which made it possible to calculate the rate of absorption of stellar wind plasma energy in the planetary corona and to refine estimates of the non-thermal loss rate of the atmosphere due to the influence of the stellar wind. The calculations carried out for the hot sub-neptune π Men c showed that the energy of a flux of energetic neutral hydrogen atoms (ENA H) penetrating the atmosphere, formed during the charge exchange of stellar wind protons with thermal hydrogen corona atoms, mainly goes to heating the hydrogen corona of a hot exoplanet.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45257552749808">В данной работе выполнено расширение кинетической модели аэрономии верхней атмосферы экзопланеты за счет включения процессов воздействия плазмы звездного ветра на протяженную водородную корону горячего суб-нептуна. Для этого были использованы разработанные ранее кинетические модели Монте-Карло для исследования высыпания протонов и атомов водорода с высокими энергиями в планетные атмосферы. Кинетическая модель адаптирована к верхним атмосферам горячих суб-нептунов, что позволило провести расчеты скорости поглощения энергии плазмы звездного ветра в планетной короне и уточнить оценки скорости нетепловой потери атмосферы за счет воздействия звездного ветра родительской звезды. Проведенные расчеты для горячего суб-нептуна π Men c показали, что энергия проникающего в атмосферу потока энергетических нейтральных атомов водорода (ЭНА Н), образующегося при перезарядке протонов звездного ветра с тепловыми атомами водородной короны, преимущественно идет на нагрев водородной короны горячей экзопланеты.</p></trans-abstract><kwd-group xml:lang="en"><kwd>exoplanets</kwd><kwd>UV observations</kwd><kwd>planetary atmosphere</kwd><kwd>aeronomy</kwd><kwd>atmospheric loss</kwd><kwd>numerical modeling</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>экзопланеты</kwd><kwd>наблюдения в ультрафиолетовом диапазоне</kwd><kwd>планетные атмосферы</kwd><kwd>аэрономия</kwd><kwd>потеря атмосферы</kwd><kwd>численное моделирование</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>F. Fressin, G. Torres, D. Charbonneau, S. T. Bryson, et al., Astrophys. 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