{"id":2175,"date":"2022-07-13T19:30:06","date_gmt":"2022-07-13T17:30:06","guid":{"rendered":"https:\/\/www-new.ias.u-psud.fr\/?p=2175"},"modified":"2026-09-25T13:35:54","modified_gmt":"2026-09-25T11:35:54","slug":"le-jwst-un-nouvel-observatoire-spatial-aux-performances-siderantes","status":"publish","type":"post","link":"https:\/\/www.ias.u-psud.fr\/index.php\/2022\/07\/13\/le-jwst-un-nouvel-observatoire-spatial-aux-performances-siderantes\/","title":{"rendered":"Le JWST : Un nouvel observatoire spatial aux performances sid\u00e9rantes"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2175\" class=\"elementor elementor-2175\" 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=\"766\" height=\"447\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/09\/Capture-decran-2026-09-01-160045.png\" class=\"attachment-large size-large wp-image-2178\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/09\/Capture-decran-2026-09-01-160045.png 766w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/09\/Capture-decran-2026-09-01-160045-300x175.png 300w\" sizes=\"(max-width: 766px) 100vw, 766px\" \/>\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-0e4251a e-con e-atomic-element e-flexbox-base e-c040bf7 \" data-id=\"0e4251a\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"0e4251a\">\n    \t\t<div class=\"elementor-element elementor-element-f4ef475 elementor-widget elementor-widget-text-editor\" data-id=\"f4ef475\" 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><strong>Images cr\u00e9dits : NASA, ESA, CSA, and STScI<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n<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\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-be0ca52 e-con e-atomic-element e-flexbox-base e-be0ca52-e96f1a7 \" data-id=\"be0ca52\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"be0ca52\">\n    \t\t\t<p class=\"e-98cf072-e5bab83 e-paragraph-base\" data-interaction-id=\"98cf072\">Les premi\u00e8res donn\u00e9es ont \u00e9t\u00e9 pr\u00e9sent\u00e9es mardi 12 juillet. Elles confirment les performances exceptionnelles du JWST et de ses 4 instruments scientifiques (NIRSPec, NIRISS, NIRCam, MIRI), en particulier la r\u00e9solution angulaire et la sensibilit\u00e9 souvent meilleures que les pr\u00e9dictions.<br><br>Jamais le ciel n'a \u00e9t\u00e9 observ\u00e9 avec ce niveau de d\u00e9tail et de profondeur. Ces r\u00e9sultats exceptionnels sont l\u2019aboutissement de pratiquement trois d\u00e9cennies de d\u00e9veloppement men\u00e9s en collaboration entre la NASA, l\u2019ESA et la CSA, en utilisant les exp\u00e9riences collectives acquises en particulier lors de la mise en oeuvre et de l\u2019exploitation des pr\u00e9c\u00e9dents grands observatoires spatiaux (IRAS, COBE, HST, ISO, Spitzer, WISE, Planck, Herschel, etc.).&nbsp;<br><br>L\u2019IAS est membre du consortium europ\u00e9en de l\u2019instrument infra-rouge moyen MIRI. Le laboratoire s\u2019\u00e9tait impliqu\u00e9 dans les tests optiques de l\u2019imageur de MIRI qui ont permis la seule mesure au sol de la r\u00e9ponse impulsionnelle optique, est responsable du traitement et de la diffusion des donn\u00e9es de l\u2019imageur au sein du centre d\u2019expertise fran\u00e7ais MIRI, et a cr\u00e9\u00e9 le laboratoire commun INCLASS pour la fusion de donn\u00e9es d\u2019imagerie et de spectroscopie. Ses \u00e9quipes scientifiques sont impliqu\u00e9es dans plusieurs programmes d\u2019observation men\u00e9s prochainement sur les r\u00e9gions photo-domin\u00e9es, l\u2019impact radiatif des \u00e9toiles massives, la croissance des grains, la dynamique dans les disques proto-plan\u00e9taire, la compostion des objets trans-neptuniens et les proto-amas de galaxies.<br><br><\/p>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-807998a e-con-full e-flex e-con e-parent\" data-id=\"807998a\" 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-add93ad e-con-full e-flex e-con e-child\" data-id=\"add93ad\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ed57b56 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"ed57b56\" 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\u00e9rences<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b0da6ac elementor-widget elementor-widget-text-editor\" data-id=\"b0da6ac\" 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>Nos chercheurs dans un article de <em>Le Monde<\/em> qui r\u00e9sume les avanc\u00e9es du JWST :<\/p><p class=\"article__title\"><a href=\"https:\/\/www.lemonde.fr\/sciences\/article\/2022\/07\/12\/james-webb-quelles-sont-les-premieres-cibles-du-telescope-spatial_6134477_1650684.html\" target=\"_blank\" rel=\"noopener\"><em>T\u00e9lescope spatial James-Webb : n\u00e9buleuses, exoplan\u00e8te, groupement de galaxies\u2026 d\u00e9couvrez toutes ses premi\u00e8res images <\/em><\/a><span class=\"meta__authors meta__authors--longform\">Par\u00a0David Larousserie <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a61e5c0 e-flex e-con-boxed e-con e-parent\" data-id=\"a61e5c0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bf1261d e-flex e-con-boxed e-con e-parent\" data-id=\"bf1261d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\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>Les premi\u00e8res donn\u00e9es ont \u00e9t\u00e9 pr\u00e9sent\u00e9es mardi 12 juillet. Elles confirment les performances exceptionnelles du JWST et de ses 4 instruments scientifiques (NIRSPec, NIRISS, NIRCam, MIRI), en particulier la r\u00e9solution angulaire et la sensibilit\u00e9 souvent meilleures que les pr\u00e9dictions.<\/p>\n","protected":false},"author":3,"featured_media":2178,"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":[5],"tags":[],"class_list":["post-2175","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-scientifiques-home"],"_links":{"self":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts\/2175","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=2175"}],"version-history":[{"count":23,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts\/2175\/revisions"}],"predecessor-version":[{"id":4255,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts\/2175\/revisions\/4255"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/media\/2178"}],"wp:attachment":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/media?parent=2175"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/categories?post=2175"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/tags?post=2175"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}