{"id":2002,"date":"2026-08-07T13:54:58","date_gmt":"2026-08-07T11:54:58","guid":{"rendered":"https:\/\/www-new.ias.u-psud.fr\/?p=2002"},"modified":"2026-09-14T12:06:17","modified_gmt":"2026-09-14T10:06:17","slug":"jwst","status":"publish","type":"post","link":"https:\/\/www.ias.u-psud.fr\/index.php\/2026\/08\/07\/jwst\/","title":{"rendered":"Miri &#8211; JWST"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2002\" class=\"elementor elementor-2002\" 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=\"1024\" height=\"737\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/image1_JWST_news-1024x737.png\" class=\"attachment-large size-large wp-image-2014\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/image1_JWST_news-1024x737.png 1024w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/image1_JWST_news-300x216.png 300w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/image1_JWST_news-768x553.png 768w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/image1_JWST_news.png 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\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\">Miri &#8211; JWST<\/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>Le <em>James Webb Space Telescope<\/em> (JWST) est le plus grand t\u00e9lescope jamais envoy\u00e9 dans l\u2019espace, d\u00e9velopp\u00e9 par la <strong>NASA<\/strong>, l\u2019<strong>ESA<\/strong> et l\u2019<strong>Agence spatiale canadienne (CSA)<\/strong>. Successeur du t\u00e9lescope Hubble, il observe l\u2019Univers dans l\u2019<strong>infrarouge<\/strong> pour r\u00e9volutionner notre compr\u00e9hension de la formation des \u00e9toiles, des galaxies lointaines, des exoplan\u00e8tes et de la mati\u00e8re interstellaire. Son lancement a eu lieu le <strong>25 d\u00e9cembre 2021<\/strong> depuis Kourou \u00e0 bord d\u2019une fus\u00e9e Ariane 5. Apr\u00e8s une phase de d\u00e9ploiement et de calibration de 6 mois, le JWST a commenc\u00e9 ses observations scientifiques en <strong>juillet 2022<\/strong>. Ses performances exceptionnelles, notamment en r\u00e9solution angulaire et sensibilit\u00e9, permettent d\u2019explorer des ph\u00e9nom\u00e8nes jusqu\u2019alors inaccessibles, comme la composition des disques protoplan\u00e9taires, les r\u00e9gions de photo-dissociation (PDR) ou encore l\u2019\u00e9volution des objets transneptuniens.<\/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-5612ae1 e-flex e-con-boxed e-con e-parent\" data-id=\"5612ae1\" 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-4211889 elementor-widget elementor-widget-heading\" data-id=\"4211889\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Le r\u00f4le de l'IAS<\/h2>\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8d2c731 e-con e-atomic-element e-flexbox-base e-8d2c731-bc6f834 \" data-id=\"8d2c731\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"8d2c731\">\n    \t\t<div class=\"elementor-element elementor-element-10d0162 elementor-widget elementor-widget-text-editor\" data-id=\"10d0162\" 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>L\u2019IAS est membre du consortium europ\u00e9en de l\u2019instrument MIRI (<em>Mid-InfraRed Instrument<\/em>), pour lequel il a contribu\u00e9 aux tests optiques de l\u2019imageur et \u00e0 la mesure de sa r\u00e9ponse impulsionnelle. Le laboratoire est \u00e9galement responsable du traitement et de la diffusion des donn\u00e9es de l\u2019imageur MIRI au sein du centre d\u2019expertise fran\u00e7ais MIRI.<br \/>L\u2019IAS a aussi co-dirig\u00e9 l\u2019un des 13 premiers programmes d\u2019observation (<em>Early Release Science Programs<\/em>) du JWST, le programme PDRs4All, d\u00e9di\u00e9 \u00e0 l\u2019\u00e9tude des r\u00e9gions de photo-dissociation et des interfaces entre nuages denses et r\u00e9gions ionis\u00e9es. Ses \u00e9quipes sont impliqu\u00e9es dans plusieurs th\u00e9matiques scientifiques, notamment :<\/p><ul><li>L\u2019analyse des r\u00e9gions photo-domin\u00e9es et de l\u2019impact radiatif des \u00e9toiles massives<\/li><li>La croissance des grains et la dynamique des disques protoplan\u00e9taires<\/li><li>La composition chimique des objets transneptuniens et des proto-amas de galaxies<\/li><li>La d\u00e9tection de mol\u00e9cules cl\u00e9s comme le cation m\u00e9thyle (CH\u2083\u207a), le CO\u2082 ou le H\u2082O\u2082 dans divers environnements astrophysiques.<\/li><\/ul><div class=\"field field-name-field-illustration-du-projet field-type-image field-label-hidden\"><div class=\"field-items\"><div class=\"field-item even\"><div class=\"field-items\"><div class=\"field-item even\"><p>MIRI est l&rsquo;instrument infrarouge moyen pour le t\u00e9lescope spatial James Webb et fournit des images, la coronographie et spectroscopie int\u00e9grale de champ dans la gamme 5-28 microns de longueur d&rsquo;onde. MIRI est l&rsquo;un des quatre instruments en cours de construction pour le t\u00e9lescope Webb. Il est d\u00e9velopp\u00e9 en partenariat entre l&rsquo;Europe et les Etats-Unis &#8211; les principaux partenaires sont l&rsquo;ESA, un consortium d&rsquo;instituts europ\u00e9ens financ\u00e9s au niveau national, le Jet Propulsion Laboratory (JPL) et le Goddard Space Flight Center de la NASA (GSFC).<\/p><\/div><\/div><\/div><\/div><\/div>\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-a181800 e-con e-atomic-element e-flexbox-base e-a181800-926350d \" data-id=\"a181800\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"a181800\">\n    \t\t<div class=\"elementor-element elementor-element-bc4a91b elementor-widget elementor-widget-n-accordion\" data-id=\"bc4a91b\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;all_collapsed&quot;,&quot;max_items_expended&quot;:&quot;multiple&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1970\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1970\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Statut <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-alt-circle-up\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M8 256C8 119 119 8 256 8s248 111 248 248-111 248-248 248S8 393 8 256zm292 116V256h70.9c10.7 0 16.1-13 8.5-20.5L264.5 121.2c-4.7-4.7-12.2-4.7-16.9 0l-115 114.3c-7.6 7.6-2.2 20.5 8.5 20.5H212v116c0 6.6 5.4 12 12 12h64c6.6 0 12-5.4 12-12z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-alt-circle-down\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M504 256c0 137-111 248-248 248S8 393 8 256 119 8 256 8s248 111 248 248zM212 140v116h-70.9c-10.7 0-16.1 13-8.5 20.5l114.9 114.3c4.7 4.7 12.2 4.7 16.9 0l114.9-114.3c7.6-7.6 2.2-20.5-8.5-20.5H300V140c0-6.6-5.4-12-12-12h-64c-6.6 0-12 5.4-12 12z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1970\" class=\"elementor-element elementor-element-ffd0654 e-con-full e-flex e-con e-child\" data-id=\"ffd0654\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1e246f0 elementor-widget elementor-widget-text-editor\" data-id=\"1e246f0\" 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>En op\u00e9ration<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1971\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1971\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Partenaires (acad\u00e9miques \/ industriels) <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-alt-circle-up\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M8 256C8 119 119 8 256 8s248 111 248 248-111 248-248 248S8 393 8 256zm292 116V256h70.9c10.7 0 16.1-13 8.5-20.5L264.5 121.2c-4.7-4.7-12.2-4.7-16.9 0l-115 114.3c-7.6 7.6-2.2 20.5 8.5 20.5H212v116c0 6.6 5.4 12 12 12h64c6.6 0 12-5.4 12-12z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-alt-circle-down\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M504 256c0 137-111 248-248 248S8 393 8 256 119 8 256 8s248 111 248 248zM212 140v116h-70.9c-10.7 0-16.1 13-8.5 20.5l114.9 114.3c4.7 4.7 12.2 4.7 16.9 0l114.9-114.3c7.6-7.6 2.2-20.5-8.5-20.5H300V140c0-6.6-5.4-12-12-12h-64c-6.6 0-12 5.4-12 12z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1971\" class=\"elementor-element elementor-element-9ddd6cc e-con-full e-flex e-con e-child\" data-id=\"9ddd6cc\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d92e616 elementor-widget elementor-widget-image\" data-id=\"d92e616\" data-element_type=\"widget\" data-e-type=\"widget\" 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https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/paris-saclay-university1609-4027411637.jpg 866w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60c26eb elementor-widget elementor-widget-image\" data-id=\"60c26eb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.irap.omp.eu\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"474\" height=\"178\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/OIP-2834953872.jpg\" class=\"attachment-medium_large size-medium_large wp-image-2005\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/OIP-2834953872.jpg 474w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/OIP-2834953872-300x113.jpg 300w\" sizes=\"(max-width: 474px) 100vw, 474px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f3b25c elementor-widget elementor-widget-image\" data-id=\"3f3b25c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.lam.fr\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"739\" height=\"236\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/logo_lam-1474046072.jpg\" class=\"attachment-full size-full wp-image-1739\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/logo_lam-1474046072.jpg 739w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/logo_lam-1474046072-300x96.jpg 300w\" sizes=\"(max-width: 739px) 100vw, 739px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f89290e elementor-widget elementor-widget-image\" data-id=\"f89290e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/AIRBUS-1-113161463.png\" class=\"attachment-full size-full wp-image-1726\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/AIRBUS-1-113161463.png 400w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/AIRBUS-1-113161463-300x300.png 300w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/AIRBUS-1-113161463-150x150.png 150w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-02bd485 elementor-widget elementor-widget-image\" data-id=\"02bd485\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"627\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/thales-alenia-space_logo-3702255570.jpg\" class=\"attachment-full size-full wp-image-1738\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/thales-alenia-space_logo-3702255570.jpg 1200w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/thales-alenia-space_logo-3702255570-300x157.jpg 300w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/thales-alenia-space_logo-3702255570-1024x535.jpg 1024w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/thales-alenia-space_logo-3702255570-768x401.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-45e7202 elementor-widget elementor-widget-image\" data-id=\"45e7202\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.acri-st.fr\/fr\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"307\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/logo_120-25442592-768x307.jpg\" class=\"attachment-medium_large size-medium_large wp-image-2004\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/logo_120-25442592-768x307.jpg 768w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/logo_120-25442592-300x120.jpg 300w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/logo_120-25442592-1024x410.jpg 1024w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/logo_120-25442592-1536x615.jpg 1536w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/logo_120-25442592.jpg 1772w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1972\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1972\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Financeurs <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-alt-circle-up\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M8 256C8 119 119 8 256 8s248 111 248 248-111 248-248 248S8 393 8 256zm292 116V256h70.9c10.7 0 16.1-13 8.5-20.5L264.5 121.2c-4.7-4.7-12.2-4.7-16.9 0l-115 114.3c-7.6 7.6-2.2 20.5 8.5 20.5H212v116c0 6.6 5.4 12 12 12h64c6.6 0 12-5.4 12-12z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-alt-circle-down\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M504 256c0 137-111 248-248 248S8 393 8 256 119 8 256 8s248 111 248 248zM212 140v116h-70.9c-10.7 0-16.1 13-8.5 20.5l114.9 114.3c4.7 4.7 12.2 4.7 16.9 0l114.9-114.3c7.6-7.6 2.2-20.5-8.5-20.5H300V140c0-6.6-5.4-12-12-12h-64c-6.6 0-12 5.4-12 12z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1972\" class=\"elementor-element elementor-element-977f54e e-con-full e-flex e-con e-child\" data-id=\"977f54e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ae3b694 elementor-widget elementor-widget-image\" data-id=\"ae3b694\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/cnes.fr\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"648\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Logo_CNES_2017_triangulaire_bleu-768x648.png\" class=\"attachment-medium_large size-medium_large wp-image-583\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Logo_CNES_2017_triangulaire_bleu-768x648.png 768w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Logo_CNES_2017_triangulaire_bleu-300x253.png 300w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Logo_CNES_2017_triangulaire_bleu.png 926w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5833fc8 elementor-widget elementor-widget-image\" data-id=\"5833fc8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.cnrs.fr\/fr\" target=\"_blank\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/06\/CNRS-150px.png\" class=\"attachment-medium_large size-medium_large wp-image-139\" alt=\"\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e8bf22 elementor-widget elementor-widget-image\" data-id=\"3e8bf22\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.universite-paris-saclay.fr\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"576\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/paris-saclay-university1609-4027411637-768x576.jpg\" class=\"attachment-medium_large size-medium_large wp-image-1737\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/paris-saclay-university1609-4027411637-768x576.jpg 768w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/paris-saclay-university1609-4027411637-300x225.jpg 300w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/paris-saclay-university1609-4027411637.jpg 866w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c1729bd elementor-widget elementor-widget-image\" data-id=\"c1729bd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/anr.fr\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"630\" height=\"320\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/logo-vectoriel-anr-691690662.jpg\" class=\"attachment-medium_large size-medium_large wp-image-2006\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/logo-vectoriel-anr-691690662.jpg 630w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/logo-vectoriel-anr-691690662-300x152.jpg 300w\" sizes=\"(max-width: 630px) 100vw, 630px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1397cbe elementor-widget elementor-widget-image\" data-id=\"1397cbe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.esa.int\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"768\" height=\"482\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/ESA_Logo_pillars-1892940653-768x482.jpg\" class=\"attachment-medium_large size-medium_large wp-image-1244\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/ESA_Logo_pillars-1892940653-768x482.jpg 768w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/ESA_Logo_pillars-1892940653-300x188.jpg 300w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/ESA_Logo_pillars-1892940653-1024x643.jpg 1024w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/ESA_Logo_pillars-1892940653-1536x964.jpg 1536w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/ESA_Logo_pillars-1892940653.jpg 1920w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-48439b3 elementor-widget elementor-widget-image\" data-id=\"48439b3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.nasa.gov\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"768\" height=\"778\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/ubxAC4-369625992-768x778.png\" class=\"attachment-medium_large size-medium_large wp-image-1398\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/ubxAC4-369625992-768x778.png 768w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/ubxAC4-369625992-296x300.png 296w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/ubxAC4-369625992-1011x1024.png 1011w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/ubxAC4-369625992-1517x1536.png 1517w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/08\/ubxAC4-369625992-2022x2048.png 2022w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1973\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1973\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Dates cl\u00e9s (pr\u00e9v.) <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-alt-circle-up\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M8 256C8 119 119 8 256 8s248 111 248 248-111 248-248 248S8 393 8 256zm292 116V256h70.9c10.7 0 16.1-13 8.5-20.5L264.5 121.2c-4.7-4.7-12.2-4.7-16.9 0l-115 114.3c-7.6 7.6-2.2 20.5 8.5 20.5H212v116c0 6.6 5.4 12 12 12h64c6.6 0 12-5.4 12-12z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-alt-circle-down\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M504 256c0 137-111 248-248 248S8 393 8 256 119 8 256 8s248 111 248 248zM212 140v116h-70.9c-10.7 0-16.1 13-8.5 20.5l114.9 114.3c4.7 4.7 12.2 4.7 16.9 0l114.9-114.3c7.6-7.6 2.2-20.5-8.5-20.5H300V140c0-6.6-5.4-12-12-12h-64c-6.6 0-12 5.4-12 12z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1973\" class=\"elementor-element elementor-element-ae94f78 e-flex e-con-boxed e-con e-child\" data-id=\"ae94f78\" 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-8a27ed9 elementor-widget elementor-widget-text-editor\" data-id=\"8a27ed9\" 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><strong>2018<\/strong> : S\u00e9lection des premiers programmes d\u2019observation (<em>Early Release Science Programs<\/em>)<\/li><li><strong>25 d\u00e9cembre 2021<\/strong> : Lancement<\/li><li><strong>Juillet 2022<\/strong> : D\u00e9but des observations scientifiques<\/li><li><strong>Juillet 2022<\/strong> : Publication des premi\u00e8res donn\u00e9es et images<\/li><li><strong>2023-2024<\/strong> : D\u00e9couvertes majeures (d\u00e9tection de mol\u00e9cules, analyse des disques protoplan\u00e9taires, \u00e9tude des TNOs)<\/li><li><strong>2025<\/strong> : Poursuite des observations et analyses scientifiques<\/li><\/ul>\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\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1974\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"5\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1974\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> \u00c9tapes cl\u00e9s <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-alt-circle-up\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M8 256C8 119 119 8 256 8s248 111 248 248-111 248-248 248S8 393 8 256zm292 116V256h70.9c10.7 0 16.1-13 8.5-20.5L264.5 121.2c-4.7-4.7-12.2-4.7-16.9 0l-115 114.3c-7.6 7.6-2.2 20.5 8.5 20.5H212v116c0 6.6 5.4 12 12 12h64c6.6 0 12-5.4 12-12z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-alt-circle-down\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M504 256c0 137-111 248-248 248S8 393 8 256 119 8 256 8s248 111 248 248zM212 140v116h-70.9c-10.7 0-16.1 13-8.5 20.5l114.9 114.3c4.7 4.7 12.2 4.7 16.9 0l114.9-114.3c7.6-7.6 2.2-20.5-8.5-20.5H300V140c0-6.6-5.4-12-12-12h-64c-6.6 0-12 5.4-12 12z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1974\" class=\"elementor-element elementor-element-4f265e0 e-flex e-con-boxed e-con e-child\" data-id=\"4f265e0\" 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-c404145 elementor-widget elementor-widget-text-editor\" data-id=\"c404145\" 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>Conception et tests optiques de l\u2019imageur <strong>MIRI<\/strong><\/li><li>Participation au consortium <strong>MIRI<\/strong> et au centre d\u2019expertise fran\u00e7ais<\/li><li>Co-direction du programme <em>Early Release Science<\/em> <strong>PDRs4All<\/strong><\/li><li>Traitement et diffusion des donn\u00e9es MIRI<\/li><li>D\u00e9tection de mol\u00e9cules in\u00e9dites (CH\u2083\u207a, CO\u2082, H\u2082O\u2082) dans divers environnements<\/li><li>\u00c9tude des disques protoplan\u00e9taires et des objets transneptuniens<\/li><\/ul>\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\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1e69ba7 elementor-widget elementor-widget-menu-anchor\" data-id=\"1e69ba7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-menu-anchor\" id=\"en-savoir-plus\"><\/div>\n\t\t\t\t\t\t<\/div>\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>Emilie Habart, Ma\u00eetresse de conf\u00e9rences et responsable d&rsquo;\u00e9quipe, \u00c9quipe AMIS<\/li><li>Beno\u00eet Tabone, Charg\u00e9 de recherche CNRS, \u00c9quipe AMIS<\/li><li>Rosario Brunetto, Charg\u00e9e de recherche CNRS, \u00c9quipe Astrochimie &amp; Origines<\/li><li>Nicolas Monnier, IR CNRS, IDOC, Service informatique<\/li><li><a href=\"https:\/\/www.ias.u-psud.fr\/annuaire?nom=abergel\">Alain Abergel<\/a>, Professeur, \u00c9quipe AMIS<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fadb250 e-con-full e-flex e-con e-child\" data-id=\"fadb250\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5640f83 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"5640f83\" 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\">Pour aller plus loin :<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f6323b3 elementor-widget elementor-widget-text-editor\" data-id=\"f6323b3\" 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>\n<li><a href=\"https:\/\/webb.nasa.gov\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer external\">Site NASA JWST<\/a><\/li>\n<li><a href=\"https:\/\/www.esa.int\/Science_Exploration\/Space_Science\/Webb\" target=\"_blank\" rel=\"nofollow noopener noreferrer external\">Site ESA JWST<\/a><\/li>\n<li><a href=\"https:\/\/miri.europe.esa.int\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer external\">Consortium MIRI<\/a><\/li>\n<li>\n<p class=\"title\"><a href=\"https:\/\/www-new.ias.u-psud.fr\/index.php\/2018\/03\/21\/lias-co-dirigera-lun-des-premiers-programmes-dobservation-du-jwst\/\" target=\"_blank\" rel=\"noopener\">L&rsquo;IAS co-dirigera l&rsquo;un des premiers programmes d&rsquo;observation du JWST<\/a><\/p>\n<\/li>\n<\/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>Le James Webb Space Telescope (JWST) est le plus grand t\u00e9lescope jamais envoy\u00e9 dans l\u2019espace, d\u00e9velopp\u00e9 par la NASA, l\u2019ESA et l\u2019Agence spatiale canadienne (CSA).<\/p>\n","protected":false},"author":3,"featured_media":2014,"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 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