{"id":1219,"date":"2026-01-21T08:53:56","date_gmt":"2026-01-21T07:53:56","guid":{"rendered":"https:\/\/andreabrussi.it\/breve-panoramica-sulla-legge-di-opacita-di-kramers-nellastrofisica-stellare\/"},"modified":"2026-04-21T17:03:35","modified_gmt":"2026-04-21T16:03:35","slug":"breve-panoramica-sulla-legge-di-opacita-di-kramers-nellastrofisica-stellare","status":"publish","type":"post","link":"https:\/\/andreabrussi.it\/it\/breve-panoramica-sulla-legge-di-opacita-di-kramers-nellastrofisica-stellare\/","title":{"rendered":"Breve panoramica sulla legge di opacit\u00e0 di Kramers nell&#8217;astrofisica stellare"},"content":{"rendered":"<p>In stellar astrophysics, opacity ( <em>k )<\/em> is a measure of a material&#8217;s resistance to the flow of radiative energy. Una descrizione analitica di questo fenomeno \u00e8 la legge di opacit\u00e0 di Kramers, una relazione di potenza derivata dalla fisica atomica che caratterizza il modo in cui la materia stellare interagisce con la radiazione in specifiche condizioni termodinamiche.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/andreabrussi.it\/wp-content\/uploads\/pdf.png\" alt=\"pdf\" width=\"30\" height=\"30\" class=\"alignnone size-full wp-image-2140\" \/>&nbsp;&nbsp;<a href=\"https:\/\/andreabrussi.it\/wp-content\/uploads\/Brussi-2026_Brief-on-Kramers-Opacity-Law-in-Stellar-Astrophysics.pdf\" target=\"_blank\">Brussi 2026_Brief on Kramers&#8217; Opacity Law in Stellar Astrophysics<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/andreabrussi.it\/wp-content\/uploads\/kramer.png\" rel=\"lightbox[1219]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-661\" src=\"https:\/\/andreabrussi.it\/wp-content\/uploads\/kramer-300x153.png\" alt=\"\" width=\"300\" height=\"153\" srcset=\"https:\/\/andreabrussi.it\/wp-content\/uploads\/kramer-300x153.png 300w, https:\/\/andreabrussi.it\/wp-content\/uploads\/kramer-768x392.png 768w, https:\/\/andreabrussi.it\/wp-content\/uploads\/kramer.png 1000w\" sizes=\"auto, (max-width: 300px) 85vw, 300px\" \/><\/a><\/p>\n<div style='text-align:right' class='yasr-auto-insert-visitor'><!--Yasr Visitor Votes Shortcode--><div id='yasr_visitor_votes_f93c1526bda6a' class='yasr-visitor-votes'><div class=\"yasr-custom-text-vv-before yasr-custom-text-vv-before-659\">please, rate this post<\/div><div id='yasr-vv-second-row-container-f93c1526bda6a'\r\n                                        class='yasr-vv-second-row-container'><div id='yasr-visitor-votes-rater-f93c1526bda6a'\r\n                                      class='yasr-rater-stars-vv'\r\n                                      data-rater-postid='659'\r\n                                      data-rating='5'\r\n                                      data-rater-starsize='16'\r\n                                      data-rater-readonly='false'\r\n                                      data-rater-nonce='4bc8a13a69'\r\n                                      data-issingular='false'\r\n                                    ><\/div><div class=\"yasr-vv-stats-text-container\" id=\"yasr-vv-stats-text-container-f93c1526bda6a\"><svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\"\r\n                                   class=\"yasr-dashicons-visitor-stats\"\r\n                                   data-postid=\"659\"\r\n                                   id=\"yasr-stats-dashicon-f93c1526bda6a\">\r\n                                   <path d=\"M18 18v-16h-4v16h4zM12 18v-11h-4v11h4zM6 18v-8h-4v8h4z\"><\/path>\r\n                               <\/svg><span id=\"yasr-vv-text-container-f93c1526bda6a\" class=\"yasr-vv-text-container\"><\/span><\/div><div id='yasr-vv-loader-f93c1526bda6a' class='yasr-vv-container-loader'><\/div><\/div><div id='yasr-vv-bottom-container-f93c1526bda6a'\r\n                              class='yasr-vv-bottom-container'\r\n                              style='display:none'><\/div><\/div><!--End Yasr Visitor Votes Shortcode--><\/div>","protected":false},"excerpt":{"rendered":"<p>In stellar astrophysics, opacity ( k ) is a measure of a material&#8217;s resistance to the flow of radiative energy. Una descrizione analitica di questo fenomeno \u00e8 la legge di opacit\u00e0 di Kramers, una relazione di potenza derivata dalla fisica atomica che caratterizza il modo in cui la materia stellare interagisce con la radiazione in &hellip; <a href=\"https:\/\/andreabrussi.it\/it\/breve-panoramica-sulla-legge-di-opacita-di-kramers-nellastrofisica-stellare\/\" class=\"more-link\">Leggi tutto<span class=\"screen-reader-text\"> &#8220;Breve panoramica sulla legge di opacit\u00e0 di Kramers nell&#8217;astrofisica stellare&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"yasr_overall_rating":0,"yasr_post_is_review":"","yasr_auto_insert_disabled":"","yasr_review_type":"","footnotes":""},"categories":[53],"tags":[68,75,64,70],"class_list":["post-1219","post","type-post","status-publish","format-standard","hentry","category-astrofisica","tag-contributi-personali","tag-lavori","tag-per-profani","tag-radiazione"],"acf":[],"yasr_visitor_votes":{"stars_attributes":{"read_only":false,"span_bottom":false},"number_of_votes":0,"sum_votes":0},"_links":{"self":[{"href":"https:\/\/andreabrussi.it\/it\/wp-json\/wp\/v2\/posts\/1219","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/andreabrussi.it\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/andreabrussi.it\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/andreabrussi.it\/it\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/andreabrussi.it\/it\/wp-json\/wp\/v2\/comments?post=1219"}],"version-history":[{"count":2,"href":"https:\/\/andreabrussi.it\/it\/wp-json\/wp\/v2\/posts\/1219\/revisions"}],"predecessor-version":[{"id":2216,"href":"https:\/\/andreabrussi.it\/it\/wp-json\/wp\/v2\/posts\/1219\/revisions\/2216"}],"wp:attachment":[{"href":"https:\/\/andreabrussi.it\/it\/wp-json\/wp\/v2\/media?parent=1219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/andreabrussi.it\/it\/wp-json\/wp\/v2\/categories?post=1219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/andreabrussi.it\/it\/wp-json\/wp\/v2\/tags?post=1219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}