{"id":3057,"date":"2026-09-14T15:36:12","date_gmt":"2026-09-14T13:36:12","guid":{"rendered":"https:\/\/www-new.ias.u-psud.fr\/?p=3057"},"modified":"2026-09-14T15:40:18","modified_gmt":"2026-09-14T13:40:18","slug":"hecor-et-heit","status":"publish","type":"post","link":"https:\/\/www.ias.u-psud.fr\/index.php\/2026\/09\/14\/hecor-et-heit\/","title":{"rendered":"HeCor et HEIT"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3057\" class=\"elementor elementor-3057\" data-elementor-post-type=\"post\">\n\t\t\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\">HeCor et HEIT<\/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>Lanc\u00e9e depuis White Sands Missile Range (Nouveau Mexique) le 14 Septembre 2009, la fus\u00e9e sonde Herschel emportait deux exp\u00e9riences \u00e0 forte contribution de l\u2019IAS : HECOR et HEIT.<\/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-5effc6c e-flex e-con-boxed e-con e-parent\" data-id=\"5effc6c\" 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-3924bcb e-con e-atomic-element e-flexbox-base e-3924bcb-08fc836 \" data-id=\"3924bcb\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"3924bcb\">\n    \t\t<div class=\"elementor-element elementor-element-6168bd9 elementor-widget elementor-widget-text-editor\" data-id=\"6168bd9\" 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 class=\"rtejustify\">Les images de HEIT permettent de conna\u00eetre la distribution d\u2019intensit\u00e9 sur le disque solaire au moment du vol, information n\u00e9cessaire \u00e0 l\u2019analyse des donn\u00e9es de HECOR. L\u2019image de HECOR est la meilleure jamais obtenue de la couronne solaire dans la raie de r\u00e9sonance \u00e0 30.4 nm de l\u2019h\u00e9lium une fois ionis\u00e9. L\u2019analyse pr\u00e9liminaire sugg\u00e8re que les structures en \u2018cornes\u2019 seraient produites par des variations locales de l\u2019abondance d\u2019H\u00e9lium dans la couronne, aux fronti\u00e8res de structures appel\u00e9es \u2018streamers\u2019.<\/p><p class=\"rtejustify\">La d\u00e9termination de l\u2019abondance d\u2019H\u00e9lium dans la couronne solaire \u00e9tait un des objectifs principaux de HECOR. Afin de confirmer la pr\u00e9sence de variations locales de l\u2019abondance, un travail\u00a0 de mod\u00e9lisation de la formation de la raie observ\u00e9e dans les conditions physiques du jour d\u2019observation est n\u00e9cessaire et est en cours. Les r\u00e9sultats scientifiques de HECOR son donc attendus dans le courant de l\u2019ann\u00e9e.<\/p><p class=\"rtejustify\">L\u2019instrument HEIT est un mod\u00e8le de rechange des t\u00e9lescopes EUVI des sondes STEREO. L\u2019IAS et l\u2019IO en ont r\u00e9alis\u00e9 les optiques. L\u2019instrument HECOR a \u00e9t\u00e9 enti\u00e8rement con\u00e7u par l\u2019IAS et l\u2019IO (Institut d&rsquo;Optique) r\u00e9alis\u00e9 les rev\u00eatements des optiques. Le design, la r\u00e9alisation, les tests et la livraison on \u00e9t\u00e9 effectu\u00e9s dans le temps limit\u00e9 de un an et demi. HECOR est le premier coronographe fabriqu\u00e9 par l\u2019IAS. Il a permis de pr\u00e9parer l\u2019avenir techniquement pour de futures missions spatiales utilisant ce type d\u2019instrument par capitalisation de savoir-faire au niveau optique et m\u00e9canique.<\/p><h4><strong>R\u00e9sultats scientifiques<\/strong><\/h4><ul><li><strong>HEIT<\/strong> : Fournit des images du disque solaire pour contextualiser les donn\u00e9es de HECOR.<\/li><li><strong>HECOR<\/strong> :<ul><li><strong>Premi\u00e8re image haute r\u00e9solution<\/strong> de la couronne solaire dans la raie <strong>30,4 nm (He II)<\/strong>.<\/li><li><strong>D\u00e9couverte pr\u00e9liminaire<\/strong> : Les structures en \u00ab\u00a0cornes\u00a0\u00bb pourraient \u00eatre li\u00e9es \u00e0 des <strong>variations locales d\u2019abondance d\u2019h\u00e9lium<\/strong> aux fronti\u00e8res des <em>streamers<\/em>.<\/li><li><strong>Mod\u00e9lisation en cours<\/strong> pour confirmer ces variations et publier les r\u00e9sultats.<\/li><\/ul><\/li><li><strong>H\u00e9ritage technique<\/strong> :<ul><li><strong>Premier coronographe<\/strong> con\u00e7u par l\u2019<strong>IAS<\/strong>.<\/li><li><strong>Capitalisation de savoir-faire<\/strong> en optique et m\u00e9canique pour de futures missions spatiales.<\/li><\/ul><\/li><\/ul>\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 d\u00e9veloppement<\/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-ce19a37 elementor-widget elementor-widget-image\" data-id=\"ce19a37\" 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 fetchpriority=\"high\" 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 class=\"elementor-element elementor-element-98561ce elementor-widget elementor-widget-image\" data-id=\"98561ce\" 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.institutoptique.fr\/\" target=\"_blank\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"768\" height=\"345\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/09\/LogoIOGS_-2566269728-768x345.png\" class=\"attachment-medium_large size-medium_large wp-image-3059\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/09\/LogoIOGS_-2566269728-768x345.png 768w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/09\/LogoIOGS_-2566269728-300x135.png 300w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/09\/LogoIOGS_-2566269728-1024x460.png 1024w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/09\/LogoIOGS_-2566269728.png 1298w\" 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-f949cc8 elementor-widget elementor-widget-image\" data-id=\"f949cc8\" 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 fetchpriority=\"high\" 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>Novembre 2005<\/strong> : D\u00e9but des activit\u00e9s du <strong>BE (Bureau d\u2019\u00c9tudes) pour HECOR<\/strong>.<\/li><li><strong>Octobre 2006 \u2013 Mars 2007<\/strong> : Int\u00e9gration des sous-assemblages au <strong>NRL (Naval Research Laboratory)<\/strong>.<\/li><li><strong>14 septembre 2009<\/strong> : Lancement depuis <strong>White Sands Missile Range (Nouveau-Mexique)<\/strong> \u00e0 bord d\u2019une fus\u00e9e sonde Herschel.<\/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<h4><strong>Conception<\/strong><\/h4><ul><li><strong>Contribution de l\u2019IAS<\/strong> :<ul><li><strong>Conception et r\u00e9alisation<\/strong> des sous-syst\u00e8mes suivants :<ul><li>Miroir + support + r\u00e9glages.<\/li><li>Occulteur.<\/li><li>Miroir de r\u00e9jection + support.<\/li><li>Baffles + supports.<\/li><li>Support CCD.<\/li><\/ul><\/li><li><strong>Mod\u00e9lisation et calculs m\u00e9caniques<\/strong> :<ul><li>Mod\u00e8les par <strong>\u00e9l\u00e9ments finis<\/strong> pour l\u2019ensemble miroir, l\u2019occulteur et les baffles.<\/li><li><strong>Analyses modales<\/strong> (comportement vibratoire) et <strong>statiques<\/strong> (contraintes et d\u00e9formations sous acc\u00e9l\u00e9ration).<\/li><li><strong>Cas de charge \u00e9tudi\u00e9s<\/strong> :<ul><li>Acc\u00e9l\u00e9ration de la fus\u00e9e <strong>BBIX (\u2248 30G)<\/strong>.<\/li><li>Choc d\u2019arr\u00eat de spin (<strong>-4 tr\/s\u00b2<\/strong>).<\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><\/ul><h4><strong>Fabrication et int\u00e9gration<\/strong><\/h4><ul><li><strong>Gestion de la fabrication<\/strong> par un sous-traitant.<\/li><li><strong>Contr\u00f4les et int\u00e9gration<\/strong> des pi\u00e8ces finales :<ul><li>Montage des sous-assemblages <strong>sous flux laminaire<\/strong> \u00e0 l\u2019atelier.<\/li><li>Envoi au <strong>NRL<\/strong> dans des <strong>caissons \u00e0 atmosph\u00e8re contr\u00f4l\u00e9e<\/strong>.<\/li><li>Montage des pi\u00e8ces m\u00e9caniques sur un <strong>banc de test en aluminium<\/strong> en attendant le banc de vol fourni par les \u00c9tats-Unis.<\/li><\/ul><\/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<p><a href=\"https:\/\/www.ias.u-psud.fr\/annuaire?nom=auchere\">Fr\u00e9d\u00e9ric Auch\u00e8re<\/a>, Directeur de l\u2019IAS, <span class=\"kY2IgmnCmOGjharHErah N56cWZpP8cNJu1dqgCxB\">\u00c9quipe<\/span> Physique solaire et stellaire<\/p>\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<p><a href=\"https:\/\/www.researchgate.net\/publication\/253761756_HECOR_a_HElium_CORonagraphy_aboard_the_Herschel_sounding_rocket_-_art_no_66890A\" target=\"_blank\" rel=\"nofollow noopener noreferrer external\">HECOR: A Helium Coronagraphy aboard the Herschel sounding rocket<\/a><\/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\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Lanc\u00e9e depuis White Sands Missile Range (Nouveau Mexique) le 14 Septembre 2009, la fus\u00e9e sonde Herschel emportait deux exp\u00e9riences \u00e0 forte contribution de l\u2019IAS: HECOR et HEIT.<\/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 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[11],"tags":[],"class_list":["post-3057","post","type-post","status-publish","format-standard","hentry","category-projets-archives-spatiaux"],"_links":{"self":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts\/3057","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=3057"}],"version-history":[{"count":14,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts\/3057\/revisions"}],"predecessor-version":[{"id":3072,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts\/3057\/revisions\/3072"}],"wp:attachment":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/media?parent=3057"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/categories?post=3057"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/tags?post=3057"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}