{"id":20580,"date":"2022-11-06T17:43:18","date_gmt":"2022-11-06T14:43:18","guid":{"rendered":"http:\/\/www.inasan.ru\/?p=20580"},"modified":"2022-11-10T17:47:18","modified_gmt":"2022-11-10T14:47:18","slug":"09112022-2","status":"publish","type":"post","link":"http:\/\/www.inasan.ru\/en\/09112022-2\/","title":{"rendered":"Seminar (09.11.2022-15:00)"},"content":{"rendered":"<div><strong>Emelianenko V. V.<\/strong> &#8211;\u00a0Institute of Astronomy of the Russian Academy of Sciences<\/div>\n<div><em><strong>\u201cDynamic evolution of a self-gravitating planetesimal disk in the distant trans-Neptunian region\u201d<\/strong><\/em><\/div>\n<div><strong>Abstract<\/strong><\/div>\n<div style=\"text-align: justify;\">The recent discovery of a family of objects moving far beyond the orbit of Neptune has sparked\u00a0a heated discussion about the structure of the outer Solar system. In particular, the unusual\u00a0grouping of the angular elements of the orbits of these objects near certain values became the basis for the hypothesis of the existence of a distant giant planet producing this effect in the\u00a0works (Trujillo, Sheppard, 2014) and (Batygin, Brown, 2016). Although the dynamic picture\u00a0looks quite convincing, the question of the actual existence of the ninth planet of the Solar System remains open. Despite intensive searches, the planet has not yet been discovered. The explanation of the formation of such a massive and distant planet also presents enormous\u00a0difficulties. Therefore, there is a need to consider other scenarios for the formation of the observed structure of the distant trans-Neptunian region.<\/div>\n<div style=\"text-align: justify;\">In our work, the long-term gravitational interaction of giant planets with the remnants of\u00a0planetesimals that did not enter these planets is studied. The study is based on the numerical\u00a0solution of the problem of N bodies over a time interval of the order of the age of the Solar\u00a0System. It is shown that due to age-old resonances, distant trans-Neptunian objects appear in a\u00a0wide range of initial masses of the planetesimal disk. This mechanism explains the origin of\u00a0Sedna-type objects. The distributions of the orbital slopes for the observed objects and in the considered model have close average values (about 20 degrees). Thus, distant trans-Neptunian\u00a0objects are a natural result of the long-term evolution of a system that includes migrating giant\u00a0planets and a self-gravitating planetesimal disk.<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Emelianenko V. V. &#8211;\u00a0Institute of Astronomy of the Russian Academy of Sciences \u201cDynamic evolution of a self-gravitating planetesimal disk in the distant trans-Neptunian region\u201d Abstract The recent discovery of a family of objects moving far beyond the orbit of Neptune has sparked\u00a0a heated discussion about the structure of the outer Solar system. In particular, the<\/p>\n<div class=\"read-more\"><a href=\"http:\/\/www.inasan.ru\/en\/09112022-2\/\">Continue Reading&rsaquo;&rsaquo;<\/a><\/div>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"class_list":["post-20580","post","type-post","status-publish","format-standard","hentry","category-akoseminar"],"translation":{"provider":"WPGlobus","version":"3.0.0","language":"en","enabled_languages":["ru","en"],"languages":{"ru":{"title":true,"content":true,"excerpt":false},"en":{"title":true,"content":true,"excerpt":false}}},"_links":{"self":[{"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/posts\/20580","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/comments?post=20580"}],"version-history":[{"count":4,"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/posts\/20580\/revisions"}],"predecessor-version":[{"id":20582,"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/posts\/20580\/revisions\/20582"}],"wp:attachment":[{"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/media?parent=20580"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/categories?post=20580"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/tags?post=20580"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}