{"id":2837,"date":"2026-09-11T17:17:26","date_gmt":"2026-09-11T15:17:26","guid":{"rendered":"https:\/\/www-new.ias.u-psud.fr\/?p=2837"},"modified":"2026-09-14T11:10:10","modified_gmt":"2026-09-14T09:10:10","slug":"pronext","status":"publish","type":"post","link":"https:\/\/www.ias.u-psud.fr\/index.php\/2026\/09\/11\/pronext\/","title":{"rendered":"PRONEXT"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2837\" class=\"elementor elementor-2837\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-365d0f3 e-flex e-con-boxed e-con e-parent\" data-id=\"365d0f3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-84ab3f5 elementor-widget elementor-widget-theme-post-featured-image elementor-widget-image\" data-id=\"84ab3f5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"theme-post-featured-image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"550\" height=\"412\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/Image1.png\" class=\"attachment-medium_large size-medium_large wp-image-1386\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/Image1.png 550w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/Image1-300x225.png 300w\" sizes=\"(max-width: 550px) 100vw, 550px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f4f600f e-flex e-con-boxed e-con e-parent\" data-id=\"f4f600f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-63f7b05 elementor-widget elementor-widget-theme-post-title elementor-page-title elementor-widget-heading\" data-id=\"63f7b05\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"theme-post-title.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">PRONEXT<\/h1>\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9b7c05e e-con e-atomic-element e-flexbox-base e-9b7c05e-607ee4c \" data-id=\"9b7c05e\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"9b7c05e\">\n    \t\t<div class=\"elementor-element elementor-element-d72e17c elementor-widget elementor-widget-text-editor\" data-id=\"d72e17c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>PRONEXT (PROcessus NEbulaires \u00e0 la surface des grains EXTraterrestres)\u00a0est une exp\u00e9rience d\u00e9velopp\u00e9e \u00e0 l\u2019IAS.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-70a9580 e-flex e-con-boxed e-con e-parent\" data-id=\"70a9580\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-95089c1 e-con e-atomic-element e-flexbox-base e-95089c1-9277620 \" data-id=\"95089c1\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"95089c1\">\n    \t\t<div class=\"elementor-element elementor-element-251ac62 elementor-widget elementor-widget-text-editor\" data-id=\"251ac62\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>&lsquo;exp\u00e9rience PRONEXT (PROcessus N\u00e9bulaires \u00e0 la surface des grains EXTraterrestres) est une cellule commerciale (de SPECAC) fonctionnant \u00e0 diff\u00e9rentes temp\u00e9ratures [300, 1000 K] et des pressions \u00e9lev\u00e9es jusqu&rsquo;\u00e0 ~69 bars. Elle s\u2019adapte dans le compartiment \u00e0 \u00e9chantillons d&rsquo;un spectrom\u00e8tre FTIR VERTEX 70 de Bruker. PRONEXT permet d\u2019\u00e9tudier les interactions gaz-surfaces avec des atmosph\u00e8res contr\u00f4l\u00e9es.<\/p><p>Cette exp\u00e9rience, qui s&rsquo;inscrit dans la continuit\u00e9 de nos travaux de simulations de processus extraterrestres, vise \u00e0 faire \u00e9voluer nos travaux sur les silicates interstellaires vers une th\u00e9matique plus ax\u00e9e sur le r\u00f4le des surfaces silicat\u00e9es dans la formation et l&rsquo;apport de volatils sur la surface de la Terre primitive.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c6ec120 e-con e-atomic-element e-flexbox-base e-c6ec120-975e7e8 \" data-id=\"c6ec120\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"c6ec120\">\n    \t\t\t<img decoding=\"async\" class=\"e-image-base e-914b134-c41c444\" data-interaction-id=\"914b134\" id=\"2839\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/09\/projet-astrochimie-pronext-image-28mars2025-768x390.png\" width=\"768\" height=\"390\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/09\/projet-astrochimie-pronext-image-28mars2025-768x390.png 768w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/09\/projet-astrochimie-pronext-image-28mars2025-300x153.png 300w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/09\/projet-astrochimie-pronext-image-28mars2025.png 891w\" alt=\"\"\/>\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-9ae6031 e-con e-atomic-element e-flexbox-base e-9ae6031-1a481a0 \" data-id=\"9ae6031\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"9ae6031\">\n    \t\t\t<p class=\"e-paragraph-base\" data-interaction-id=\"2661b2c\">Photographie du dispositif exp\u00e9rimental avec \u00e0 droite le syst\u00e8me d'introduction et&nbsp; d\u2018\u00e9vacuation des gaz de r\u00e9actions. Au centre du spectrom\u00e8tre, dans le compartiment de l'\u00e9chantillon, la cellule PRONEXT (capot ouvert ici pour la photo).&nbsp;<\/p>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-72b19574 e-con-full e-flex e-con e-parent\" data-id=\"72b19574\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-53a7b892 e-con-full e-flex e-con e-child\" data-id=\"53a7b892\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-13a0d604 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"13a0d604\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeIn&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Contacts<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3108905 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"3108905\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeIn&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">R\u00e9f\u00e9rents (scientifiques et techniques) <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c63b2a5 elementor-widget elementor-widget-text-editor\" data-id=\"1c63b2a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul><li><a href=\"https:\/\/www.ias.u-psud.fr\/annuaire?nom=djouadi\">Zahia Djouadi<\/a>, Ma\u00eetre de conf\u00e9rences et responsable d&rsquo;\u00e9quipe Astrochimie &amp; Origines<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>PRONEXT (PROcessus NEbulaires \u00e0 la surface des grains EXTraterrestres) est une exp\u00e9rience d\u00e9velopp\u00e9e \u00e0 l\u2019IAS.<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[27],"tags":[],"class_list":["post-2837","post","type-post","status-publish","format-standard","hentry","category-experimentation"],"_links":{"self":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts\/2837","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/comments?post=2837"}],"version-history":[{"count":11,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts\/2837\/revisions"}],"predecessor-version":[{"id":2868,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts\/2837\/revisions\/2868"}],"wp:attachment":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/media?parent=2837"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/categories?post=2837"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/tags?post=2837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}