{"id":4243,"date":"2016-04-21T17:55:57","date_gmt":"2016-04-21T14:55:57","guid":{"rendered":"http:\/\/www.inasan.ru\/?p=4243"},"modified":"2016-04-25T21:17:24","modified_gmt":"2016-04-25T18:17:24","slug":"seminar_0324","status":"publish","type":"post","link":"http:\/\/www.inasan.ru\/en\/seminar_0324\/","title":{"rendered":"Astrophysical Seminar (28 April 2016, 11:00)"},"content":{"rendered":"<p><b>Speaker:<\/b> <i><span style=\"color: #0000ff;\">E.V. Polyachenko (INASAN)<\/span><\/i><\/p>\n<p><b>Title:<\/b> <i><span style=\"color: #0000ff;\">&#8220;Bar formation in galaxies with cuspy bulges&#8221;<\/span><\/i><\/p>\n<p><b>Abstract:<\/b><\/p>\n<p>We suggest a solution for a problem of bar formation in galaxies with cuspy bulges, e.g., the Milky Way galaxy. The problem is connected with the presence of a so-called inner Lindblad resonance (ILR), which exists for any possible pattern speed of the bar. From theoretical point of view, ILR prevents bar formation, although N-body experiments show bar development by usual bar instability during 3 Gyr. A possible reason is due to the initial disc thickness, to which the pattern speed and orbit resonances are very sensitive. Accounting for the disc thickness in a toy model allows us to reproduce the bar mode by a global mode analysis in the framework of linear perturbation theory.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Speaker: E.V. Polyachenko (INASAN) Title: &#8220;Bar formation in galaxies with cuspy bulges&#8221; Abstract: We suggest a solution for a problem of bar formation in galaxies with cuspy bulges, e.g., the Milky Way galaxy. The problem is connected with the presence of a so-called inner Lindblad resonance (ILR), which exists for any possible pattern speed of<\/p>\n<div class=\"read-more\"><a href=\"http:\/\/www.inasan.ru\/en\/seminar_0324\/\">Continue Reading&rsaquo;&rsaquo;<\/a><\/div>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-4243","post","type-post","status-publish","format-standard","hentry","category-seminar"],"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\/4243","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\/12"}],"replies":[{"embeddable":true,"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/comments?post=4243"}],"version-history":[{"count":5,"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/posts\/4243\/revisions"}],"predecessor-version":[{"id":4246,"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/posts\/4243\/revisions\/4246"}],"wp:attachment":[{"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/media?parent=4243"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/categories?post=4243"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.inasan.ru\/en\/wp-json\/wp\/v2\/tags?post=4243"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}