{"id":854,"date":"2021-11-17T10:28:37","date_gmt":"2021-11-17T09:28:37","guid":{"rendered":"http:\/\/utf.mff.cuni.cz\/~pejcha\/?p=854"},"modified":"2021-11-17T10:29:27","modified_gmt":"2021-11-17T09:29:27","slug":"supernovae-in-colliding-wind-binaries-observational-signatures-in-the-first-year","status":"publish","type":"post","link":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/2021\/11\/17\/supernovae-in-colliding-wind-binaries-observational-signatures-in-the-first-year\/","title":{"rendered":"Supernovae in colliding-wind binaries: observational signatures in the first year"},"content":{"rendered":"\n<p>When a core-collapse supernova explodes in a binary star system, the ejecta might encounter an overdense shell, where the stellar winds of the two stars previously collided. It is worth looking more closely at this colliding-wind shell, because it&#8217;s structure can be relatively well predicted based on the properties of the binary. Together with <a href=\"http:\/\/utf.mff.cuni.cz\/~dcalderon\/\">Diego<\/a> and <a href=\"https:\/\/www.physics.muni.cz\/~petrk\/\">Petr<\/a>, we investigated what observable effect for light curves and flash ionization arises from supernova hitting the colliding wind shell. In the process, we developed a semi-analytic model of CSM distribution in colliding-wind binaries calibrated by Diego&#8217;s 3D AMR simulations. We combined this model with a thin shell model for supernova shock interaction that is angularly dependent. The conclusion is that observable signatures still require relatively high wind mass-loss rates, which might not be completely realistic, and nearly equal-mass companions at large separations, which might be rare. Preprint available <a href=\"https:\/\/arxiv.org\/abs\/2111.08039\">here<\/a>.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-3\">\n<div class=\"wp-block-column is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-group is-layout-flow\"><div class=\"wp-block-group__inner-container\">\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2021\/11\/2021-11-17_10-24-1.png\" alt=\"\" class=\"wp-image-861\" width=\"508\" height=\"416\" srcset=\"https:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2021\/11\/2021-11-17_10-24-1.png 764w, https:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2021\/11\/2021-11-17_10-24-1-300x246.png 300w\" sizes=\"(max-width: 508px) 85vw, 508px\" \/><\/figure>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2021\/11\/2021-11-17_10-24_2-1-1024x737.png\" alt=\"\" class=\"wp-image-863\" width=\"552\" height=\"396\" srcset=\"https:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2021\/11\/2021-11-17_10-24_2-1-1024x737.png 1024w, https:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2021\/11\/2021-11-17_10-24_2-1-300x216.png 300w, https:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2021\/11\/2021-11-17_10-24_2-1-768x553.png 768w, https:\/\/utf.mff.cuni.cz\/~pejcha\/wp-content\/uploads\/2021\/11\/2021-11-17_10-24_2-1-1200x864.png 1200w\" sizes=\"(max-width: 552px) 85vw, 552px\" \/><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>When a core-collapse supernova explodes in a binary star system, the ejecta might encounter an overdense shell, where the stellar winds of the two stars previously collided. It is worth looking more closely at this colliding-wind shell, because it&#8217;s structure can be relatively well predicted based on the properties of the binary. Together with Diego &hellip; <a href=\"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/2021\/11\/17\/supernovae-in-colliding-wind-binaries-observational-signatures-in-the-first-year\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Supernovae in colliding-wind binaries: observational signatures in the first year&#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\/854"}],"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=854"}],"version-history":[{"count":6,"href":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/wp-json\/wp\/v2\/posts\/854\/revisions"}],"predecessor-version":[{"id":866,"href":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/wp-json\/wp\/v2\/posts\/854\/revisions\/866"}],"wp:attachment":[{"href":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/wp-json\/wp\/v2\/media?parent=854"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/wp-json\/wp\/v2\/categories?post=854"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/utf.mff.cuni.cz\/~pejcha\/index.php\/wp-json\/wp\/v2\/tags?post=854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}