{"id":1054,"date":"2023-10-28T09:17:00","date_gmt":"2023-10-28T07:17:00","guid":{"rendered":"http:\/\/utf.mff.cuni.cz\/~pejcha\/?p=1054"},"modified":"2023-10-28T09:17:00","modified_gmt":"2023-10-28T07:17:00","slug":"post-dynamical-inspiral-phase-of-common-envelope-evolution-the-role-of-magnetic-fields","status":"publish","type":"post","link":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/2023\/10\/28\/post-dynamical-inspiral-phase-of-common-envelope-evolution-the-role-of-magnetic-fields\/","title":{"rendered":"Post-dynamical inspiral phase of common envelope evolution. The role of magnetic fields"},"content":{"rendered":"\n<p>In his newest paper, Damien Gagnier takes the next step by simulating post-dynamical common envelope evolution with MHD with Athena++. We see amplification of B to similar levels as in other contemporary work, but with a much lower kinetic-to-magnetic energy ratio and no evidence for jets. Magnetic fields have a negligible impact on many features including binary orbit evolution. Damien performed detailed analysis of reservoirs of energy and transfer between them. He also measured \u03b1-disk parameter of \u22430.034, but the &#8220;viscosity&#8221; is not straighforwardly due to B. There is much more &#8211; check out the paper at <a rel=\"noreferrer noopener\" href=\"https:\/\/arxiv.org\/abs\/2310.16880\" target=\"_blank\">https:\/\/arxiv.org\/abs\/2310.16880<\/a>, now under review in A&amp;A.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"591\" height=\"668\" data-id=\"1055\"  src=\"http:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2023\/10\/395443255_10163329373992627_5320844304883363923_n.jpg\" alt=\"\" class=\"wp-image-1055\" srcset=\"https:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2023\/10\/395443255_10163329373992627_5320844304883363923_n.jpg 591w, https:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2023\/10\/395443255_10163329373992627_5320844304883363923_n-265x300.jpg 265w\" sizes=\"(max-width: 591px) 85vw, 591px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"791\" data-id=\"1057\"  src=\"http:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2023\/10\/395446978_10163329373777627_9008910989459433099_n-1024x791.jpg\" alt=\"\" class=\"wp-image-1057\" srcset=\"https:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2023\/10\/395446978_10163329373777627_9008910989459433099_n-1024x791.jpg 1024w, https:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2023\/10\/395446978_10163329373777627_9008910989459433099_n-300x232.jpg 300w, https:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2023\/10\/395446978_10163329373777627_9008910989459433099_n-768x594.jpg 768w, https:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2023\/10\/395446978_10163329373777627_9008910989459433099_n.jpg 1035w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"837\" height=\"636\" data-id=\"1056\"  src=\"http:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2023\/10\/396090500_10163329374357627_7130972052582669877_n.jpg\" alt=\"\" class=\"wp-image-1056\" srcset=\"https:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2023\/10\/396090500_10163329374357627_7130972052582669877_n.jpg 837w, https:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2023\/10\/396090500_10163329374357627_7130972052582669877_n-300x228.jpg 300w, https:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2023\/10\/396090500_10163329374357627_7130972052582669877_n-768x584.jpg 768w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" \/><\/figure>\n<\/figure>\n","protected":false},"excerpt":{"rendered":"<p>In his newest paper, Damien Gagnier takes the next step by simulating post-dynamical common envelope evolution with MHD with Athena++. We see amplification of B to similar levels as in other contemporary work, but with a much lower kinetic-to-magnetic energy ratio and no evidence for jets. Magnetic fields have a negligible impact on many features &hellip; <a href=\"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/2023\/10\/28\/post-dynamical-inspiral-phase-of-common-envelope-evolution-the-role-of-magnetic-fields\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Post-dynamical inspiral phase of common envelope evolution. The role of magnetic fields&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/wp-json\/wp\/v2\/posts\/1054"}],"collection":[{"href":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/wp-json\/wp\/v2\/comments?post=1054"}],"version-history":[{"count":1,"href":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/wp-json\/wp\/v2\/posts\/1054\/revisions"}],"predecessor-version":[{"id":1058,"href":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/wp-json\/wp\/v2\/posts\/1054\/revisions\/1058"}],"wp:attachment":[{"href":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/wp-json\/wp\/v2\/media?parent=1054"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/wp-json\/wp\/v2\/categories?post=1054"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/wp-json\/wp\/v2\/tags?post=1054"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}