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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">355484</article-id><article-id pub-id-type="doi">10.7868/S3034518925110047</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">STUDY OF THE MIGRATION OF EARTH-LIKE PLANETS IN PLANETESIMAL DISKS AND THE FORMATION OF DEBRIS DISKS</article-title><trans-title-group xml:lang="ru"><trans-title>ИССЛЕДОВАНИЕ ОСОБЕННОСТЕЙ МИГРАЦИИ ЗЕМЛЕПОДОБНЫХ ПЛАНЕТ В ПЛАНЕТЕЗИМАЛЬНЫХ ДИСКАХ И ОБРАЗОВАНИЯ ОСКОЛОЧНЫХ ДИСКОВ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Oleynik</surname><given-names>O. S</given-names></name><name xml:lang="ru"><surname>Олейник</surname><given-names>О. С</given-names></name></name-alternatives><email>olgaoleynik93@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Emel'yanenko</surname><given-names>V. V</given-names></name><name xml:lang="ru"><surname>Емельяненко</surname><given-names>В. В</given-names></name></name-alternatives><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Astronomy of the RAS</institution></aff><aff><institution xml:lang="ru">Институт астрономии РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-11-15" publication-format="electronic"><day>15</day><month>11</month><year>2025</year></pub-date><volume>102</volume><issue>11</issue><issue-title xml:lang="en">VOL 102, NO11 (2025)</issue-title><issue-title xml:lang="ru">ТОМ 102, №11 (2025)</issue-title><fpage>995</fpage><lpage>1005</lpage><history><date date-type="received" iso-8601-date="2025-12-02"><day>02</day><month>12</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2026-11-15"/></permissions><self-uri xlink:href="https://journals.rcsi.science/0004-6299/article/view/355484">https://journals.rcsi.science/0004-6299/article/view/355484</self-uri><abstract xml:lang="en"><p>The aim of this study is to investigate the interaction of Earth-mass planets with a disk of planetesimals. It is shown that an Earth-like planet, initially located near the inner boundary of the planetesimal disk, migrates inside the disk. The magnitude of penetration of the planet into the disk is a random value determined by the angular momentum distribution of planetesimals approaching the planet. However, at a certain stage, the direction of the planet's migration always changes, and the planet returns to the inner boundary of the disk. During such reversible migration, the planet perturbs the orbits of planetesimals and increases their relative velocities in the region of the disk where it was during its migration. The relative velocities of planetesimals increase to values sufficient for their fragmentation during collisions. Our estimates show that after the passage of an Earth-mass planet through the outer planetesimal disk, the average relative velocities in the main part of the disk increase to values sufficient for the fragmentation of monolithic basaltic planetesimals ~40 km in size. Thus, the interaction of even a small planet (of the order of Earth's mass) with a planetesimal disk can lead to the formation of dust particles observed in outer debris disks.</p></abstract><trans-abstract xml:lang="ru"><p>Задачей настоящего исследования является исследование взаимодействия планет земной массы с диском планетезималей. Показано, что землеподобная планета, изначально находясь вблизи внутренней границы планетезимального диска, мигрирует внутрь диска. Глубина проникновения планеты в диск является случайной величиной, определяемой распределением угловых моментов планетезималей, сближающихся с планетой. Но всегда на определенном этапе направление миграции планеты изменяется, и планета возвращается к внутренней границе диска. При такой обратимой миграции планета возмущает орбиты планетезималей и увеличивает их относительные скорости в той части диска, где она находилась на пути своей миграции. Наши оценки показывают, что после прохождения планеты земной массы через внешний планетезимальный диск (30—40 a. e. в нашей модели) средние относительные скорости в основной части диска возрастают до значений, достаточных для разрушения монолитных базальтовых планетезималей размером ~40 км. Таким образом, взаимодействие даже небольшой планеты (порядка земной массы) с планетезимальным диском способно привести к образованию пылевых частиц, наблюдаемых во внешних осколочных дисках.</p></trans-abstract><kwd-group xml:lang="en"><kwd>planetary migration</kwd><kwd>planetesimals</kwd><kwd>collisions</kwd><kwd>debris disks</kwd><kwd>dust</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>миграция планет</kwd><kwd>планетезимали</kwd><kwd>столкновения</kwd><kwd>осколочные диски</kwd><kwd>пыль</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>P.C. Cao, Q. Liu, N.H. Liao, Q.C. Yang, and D. Huang, Res. Astron. and Astrophys. 23(8), id. 085002 (2023).</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>T.D. Pearce, R. Launhardt, R. Ostermann, G.M. Kennedy, et al., Astron. and Astrophys. 659, id. A135 (2022).</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>A. Boccaletti, Comptes Rendus. 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