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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">647653</article-id><article-id pub-id-type="doi">10.31857/S0004629924090015</article-id><article-id pub-id-type="edn">IBOJTZ</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">The effect of star flare activity on the structure of the hydrogen-helium upper atmosphere of hot Jupiter</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние вспышечной активности звезды на структуру водородно-гелиевой верхней атмосферы горячего юпитера</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zhilkin</surname><given-names>A. G.</given-names></name><name xml:lang="ru"><surname>Жилкин</surname><given-names>А. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>zhilkin@inasan.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gladysheva</surname><given-names>Y. G.</given-names></name><name xml:lang="ru"><surname>Гладышева</surname><given-names>Ю. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>zhilkin@inasan.ru</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><address><country country="RU">Russian Federation</country></address><email>zhilkin@inasan.ru</email><xref ref-type="aff" rid="aff1"/></contrib><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><address><country country="RU">Russian Federation</country></address><email>zhilkin@inasan.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><address><country country="RU">Russian Federation</country></address><email>zhilkin@inasan.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Astronomy of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">ФГБУ Российской академии наук Институт астрономии</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-09-15" publication-format="electronic"><day>15</day><month>09</month><year>2024</year></pub-date><volume>101</volume><issue>9</issue><fpage>796</fpage><lpage>809</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/647653">https://journals.eco-vector.com/0004-6299/article/view/647653</self-uri><abstract xml:lang="en"><p>In the paper using 1D aeronomic model the impact of a stellar flare on the upper atmosphere of hot Jupiter is investigated. The atmosphere is assumed to have a hydrogen-helium chemical composition, and calculations were carried out for the hot Jupiter HD 209458b. We examined single and repeated flares in which the flux of hard UV radiation increases by 10, 100 and 1000 times compared to the quiescent state of the star. The active phase of the dynamic response of the atmosphere lasts 12–15 hours after the flare, and the characteristic period of relaxation to the initial state is about a day. From the results obtained it follows that the flare activity of solar-type stars does not have a significant effect on the evolution of the planetary atmospheres of hot Jupiters. However, the interpretation of transit observations of the disturbed atmospheres of hot Jupiters will make it possible to separate from each other the observational effects associated with the interaction of stellar flares and coronal mass ejections with the upper atmospheres and envelopes of these planets. This will make it possible to more accurately determine the parameters of the stellar wind and coronal mass ejections of solar-type parent stars.</p></abstract><trans-abstract xml:lang="ru"><p>В работе на основе одномерной аэрономической модели исследуется воздействие звездной вспышки на верхнюю атмосферу горячего юпитера. Предполагается, что атмосфера имеет водородно-гелиевый химический состав, а расчеты проводились для горячего юпитера HD 209458b. Мы рассмотрели одиночные и повторные вспышки, в которых поток жесткого УФ излучения возрастает в 10, 100 и 1000 раз по сравнению со спокойным состоянием звезды. Активная фаза динамического отклика атмосферы продолжается 12–15 часов после вспышки, а характерный период релаксации к исходному состоянию составляет порядка суток. Из полученных результатов следует, что вспышечная активность звезд солнечного типа не оказывает существенного влияния на эволюцию планетных атмосфер горячих юпитеров. Однако интерпретация транзитных наблюдений возмущенных атмосфер горячих юпитеров позволит отделить друг от друга наблюдательные эффекты, связанные с взаимодействием звездных вспышек и корональных выбросов массы с верхними атмосферами и оболочками этих планет. Это даст возможность более точно определить параметры звездного ветра и корональных выбросов массы у родительских звезд солнечного типа.</p></trans-abstract><kwd-group xml:lang="en"><kwd>hot Jupiters</kwd><kwd>aeronomy</kwd><kwd>numerical simulations</kwd><kwd>hydrodynamics</kwd><kwd>chemical reactions</kwd><kwd>thermal balance</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>горячие юпитеры</kwd><kwd>аэрономия</kwd><kwd>численное моделирование</kwd><kwd>гидродинамика</kwd><kwd>химические реакции</kwd><kwd>тепловой баланс</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>H. Maehara, T. Shibayama, S. Notsu, Y. Notsu, et al., Nature 485, 478 (2012).</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Y. Notsu, H. Maehara, S. Honda, S. L. Hawley, et al., 876, id. 58 (2019).</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>M. N. Günther, Z. Zhan, S. Seager, P. B. Rimmer, et al., Astron. J. 159(2), id. 60 (2020).</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>A. Segura, L. M. Walkowicz, V. Meadows, J. Kasting, and S. Hawley, Astrobiology 10(7), 751 (2010).</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>M. A. Tilley, A. Segura, V. Meadows, S. Hawley, and J. Davenport, Astrobiology 19(1), 64 (2019).</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>D. Atri and S. R. C. Mogan, Monthly Not. Roy. Astron. Soc. Letters 500(1), L1 (2021).</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>L. N. R. do Amaral, L. Barnes, A. Segura, and R, Luger. 928, id. 12 (2022).</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>D. V. Bisikalo, V. I. Shematovich, A. A. Cherenkov, L. Fossati, and C. Moestl. 869, id. 108 (2018).</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>D. V. Bisikalo, A. A. Cherenkov, V. I. Shematovich, L. Fossati, and C. Moestl, Astron. Rep. 62, 648 (2018).</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>A. A. Cherenkov, I. F. Shaikhislamov, D. V. Bisikalo, V. I. Shematovich, L. Fossati, and C. Moestl, Astron. Rep. 63, 94 (2019).</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>V. I. Shematovich, D. E. Ionov, and H. Lammer, Astron. and Astrophys. 571, id. A94 (2014).</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>D. E. Ionov, V. I. Shematovich, and Ya. N. Pavlyuchenkov, Astron. Rep. 61, 387 (2017).</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>D. E. Ionov, Y. N. Pavlyuchenkov, and V. I. Shematovich, Monthly Not. Roy. Astron. Soc. 476, 5639 (2018).</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>A. A. Boyarchuk, B. M. Shustov, I. S. Savanov, M. E. Sachkov, et al., Astron. Rep. 60(1), 1 (2016).</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>B. M. Shustov, M. E. Sachkov, S. G. Sichevsky, R. N. Arkhangelsky, et al., Solar System Res. 55(7), 677 (2021).</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>А. Г. Жилкин, Ю. Г. Гладышева, В. И. Шематович, Д. В. Бисикало, Астрон. журн. 100(12), 1190 (2023).</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>А. Г. Жилкин, Ю. Г. Гладышева, В. И. Шематович, Г. Н. Цуриков, Д. В. Бисикало, Астрон. журн. 101, в печати (2023).</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>L. Fossati, C. A. Haswell, C. S. Froning, L. Hebb, et al., 714, L222 (2010).</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>M. Holmstrom, A. Ekenback, F. Selsis, T. Penz, et al., Nature. 451, 970 (2008).</mixed-citation></ref><ref id="B20"><label>20.</label><mixed-citation>I. F. Shaikhislamov, M. L. Khodachenko, H. Lammer, K. G. Kislyakova, et al., 832, id. 173 (2016).</mixed-citation></ref><ref id="B21"><label>21.</label><mixed-citation>M. L. Khodachenko, I. F. Shaikhislamov, H. Lammer, A. G. Berezutsky, et al., 885, id. 67 (2019).</mixed-citation></ref><ref id="B22"><label>22.</label><mixed-citation>В. И. Шематович, И. Ф. Шайхисламов, А. Г. Жилкин, И. С. Саванов, Г. Н. Цуриков, Д. В. Бисикало, Физмат 1(1), 20 (2023).</mixed-citation></ref><ref id="B23"><label>23.</label><mixed-citation>A. G. Zhilkin and D. V Bisikalo, Universe 7, 422 (2021).</mixed-citation></ref><ref id="B24"><label>24.</label><mixed-citation>A. G. Zhilkin, Astron. Rep. 67(4), 307 (2023).</mixed-citation></ref><ref id="B25"><label>25.</label><mixed-citation>Д. В. Бисикало, А. Г. Жилкин, А. А. Боярчук, Газодинамика тесных двойных звезд. М.: Физматлит, 2013.</mixed-citation></ref><ref id="B26"><label>26.</label><mixed-citation>А. А. Самарский, Е. С. Николаев, Методы решения сеточных уравнений. М.: Наука, 1978.</mixed-citation></ref><ref id="B27"><label>27.</label><mixed-citation>A. Vidal-Madjar, A. Lecavelier des Etangs, J.-M. Desert, G. E. Ballester, et al., Nature 422, 143 (2003).</mixed-citation></ref><ref id="B28"><label>28.</label><mixed-citation>G. B. Field. 142, 531 (1965).</mixed-citation></ref><ref id="B29"><label>29.</label><mixed-citation>T. Yoneyama, Publ. Astron. Soc. Japan 25, 349 (1973).</mixed-citation></ref><ref id="B30"><label>30.</label><mixed-citation>Y. G. Gladysheva, A. G. Zhilkin, and D. V. Bisikalo, INASAN Sci. Rep. 5, 1 (2020).</mixed-citation></ref></ref-list></back></article>
