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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">npe</journal-id><journal-title-group><journal-title xml:lang="ru">Ядерная физика и инжиниринг</journal-title><trans-title-group xml:lang="en"><trans-title>Nuclear Physics and Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-5629</issn><issn pub-type="epub">2079-5637</issn><publisher><publisher-name>МИФИ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.56304/S2079562920060445</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-56</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Взаимодействие плазмы, пучков частиц и излучения с веществом</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Interaction of Plasma, Particle Beams and Radiation with Matter</subject></subj-group></article-categories><title-group><article-title>Динамика распределения температуры гравитационно-связанных объектов в расширяющейся вселенной</article-title><trans-title-group xml:lang="en"><trans-title>Dynamics of Temperature Distribution of Gravitationally Bound Objects in the Expanding Universe</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петрякова</surname><given-names>П. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Petryakova</surname><given-names>P. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Каширское шоссе 31, Москва, 115409 </p></bio><bio xml:lang="en"><p>Moscow, 115409 </p></bio><email xlink:type="simple">petriakovapolina@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский ядерный университет “МИФИ”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>22</day><month>04</month><year>2024</year></pub-date><volume>12</volume><issue>2</issue><fpage>129</fpage><lpage>131</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Петрякова П.М., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Петрякова П.М.</copyright-holder><copyright-holder xml:lang="en">Petryakova P.M.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://npe.elpub.ru/jour/article/view/56">https://npe.elpub.ru/jour/article/view/56</self-uri><abstract><p>В данной работе рассматривается кластер первичных черных дыр (ПЧД), отделившийся от космологического расширения. Характерной особенностью образовавшейся области является повышенная температура относительно окружающего пространства, которая может быть причиной образования новых цепочек ядерных реакций, существенно влияющих на химический состав рассматриваемой области. Распространение температуры описывается в рамках релятивистской процедуры Чепмена–Энскога.</p></abstract><trans-abstract xml:lang="en"><p>We consider a cluster of Primordial Black Holes (PBH) which is decoupled from the cosmological expansion (Hubble flow) and this region is heated as compared to the surrounding matter. The increased temperature inside the region can be explained by several mechanisms of PBH formation. The temperature dynamics is described by the appropriate equations in the framework of the Chapman–Enskog procedure.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>первичные черные дыры</kwd><kwd>кластер первичных черных дыр</kwd></kwd-group><kwd-group xml:lang="en"><kwd>primordial black holes</kwd><kwd>cluster of primordial black holes</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Belotsky K.M., Dokuchaev V.I., Eroshenko Y.N. et al. // Eur. Phys. J. C. 2019. V. 79. P. 246. https://doi.org/10.1140/epjc/s10052-019-6741-4</mixed-citation><mixed-citation xml:lang="en">Belotsky K.M., Dokuchaev V.I., Eroshenko Y.N. et al. // Eur. Phys. J. C. 2019. V. 79. P. 246. https://doi.org/10.1140/epjc/s10052-019-6741-4</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Chapman S., Cowling T.G. 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