{"id":942,"date":"2026-07-28T17:37:41","date_gmt":"2026-07-28T15:37:41","guid":{"rendered":"https:\/\/www-new.ias.u-psud.fr\/?page_id=942"},"modified":"2026-09-23T11:33:25","modified_gmt":"2026-09-23T09:33:25","slug":"physique-du-systeme-solaire-et-des-systemes-planetaires","status":"publish","type":"page","link":"https:\/\/www.ias.u-psud.fr\/index.php\/physique-du-systeme-solaire-et-des-systemes-planetaires\/","title":{"rendered":"Physique du syst\u00e8me solaire et des syst\u00e8mes plan\u00e9taires"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"942\" class=\"elementor elementor-942\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ef3edb0 e-con-full e-flex e-con e-parent\" data-id=\"ef3edb0\" 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-26f6f53 e-con-full e-flex e-con e-child\" data-id=\"26f6f53\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f9c99b8 e-con-full e-flex e-con e-child\" data-id=\"f9c99b8\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b8f0ecb e-con-full e-flex e-con e-child\" data-id=\"b8f0ecb\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-65845c7f e-con-full e-flex e-con e-parent\" data-id=\"65845c7f\" 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-388502ff e-flex e-con-boxed e-con e-child\" data-id=\"388502ff\" 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-307741f elementor-nav-menu--dropdown-tablet elementor-nav-menu__text-align-aside elementor-nav-menu--toggle elementor-nav-menu--burger elementor-widget elementor-widget-nav-menu\" data-id=\"307741f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;layout&quot;:&quot;horizontal&quot;,&quot;submenu_icon&quot;:{&quot;value&quot;:&quot;&lt;svg aria-hidden=\\&quot;true\\&quot; class=\\&quot;e-font-icon-svg e-fas-caret-down\\&quot; viewBox=\\&quot;0 0 320 512\\&quot; xmlns=\\&quot;http:\\\/\\\/www.w3.org\\\/2000\\\/svg\\&quot;&gt;&lt;path d=\\&quot;M31.3 192h257.3c17.8 0 26.7 21.5 14.1 34.1L174.1 354.8c-7.8 7.8-20.5 7.8-28.3 0L17.2 226.1C4.6 213.5 13.5 192 31.3 192z\\&quot;&gt;&lt;\\\/path&gt;&lt;\\\/svg&gt;&quot;,&quot;library&quot;:&quot;fa-solid&quot;},&quot;toggle&quot;:&quot;burger&quot;}\" data-widget_type=\"nav-menu.default\">\n\t\t\t\t\t\t\t\t<nav aria-label=\"Menu\" class=\"elementor-nav-menu--main elementor-nav-menu__container elementor-nav-menu--layout-horizontal e--pointer-underline e--animation-fade\">\n\t\t\t\t<ul id=\"menu-1-307741f\" class=\"elementor-nav-menu\"><li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-1048\"><a href=\"https:\/\/www-new.ias.u-psud.fr\/index.php\/physique-du-systeme-solaire-et-des-systemes-planetaires\/#presentation\" class=\"elementor-item elementor-item-anchor menu-link\">Pr\u00e9sentation<\/a><\/li>\n<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-1046\"><a href=\"https:\/\/www-new.ias.u-psud.fr\/index.php\/physique-du-systeme-solaire-et-des-systemes-planetaires\/#equipe\" class=\"elementor-item elementor-item-anchor menu-link\">L&rsquo;\u00e9quipe<\/a><\/li>\n<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-1047\"><a href=\"https:\/\/www-new.ias.u-psud.fr\/index.php\/physique-du-systeme-solaire-et-des-systemes-planetaires\/#themes-scientifiques\" class=\"elementor-item elementor-item-anchor menu-link\">Th\u00e8mes scientifiques<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t<div class=\"elementor-menu-toggle\" role=\"button\" tabindex=\"0\" aria-label=\"Menu Toggle\" aria-expanded=\"false\">\n\t\t\t<svg aria-hidden=\"true\" role=\"presentation\" class=\"elementor-menu-toggle__icon--open e-font-icon-svg e-eicon-menu-bar\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M104 333H896C929 333 958 304 958 271S929 208 896 208H104C71 208 42 237 42 271S71 333 104 333ZM104 583H896C929 583 958 554 958 521S929 458 896 458H104C71 458 42 487 42 521S71 583 104 583ZM104 833H896C929 833 958 804 958 771S929 708 896 708H104C71 708 42 737 42 771S71 833 104 833Z\"><\/path><\/svg><svg aria-hidden=\"true\" role=\"presentation\" class=\"elementor-menu-toggle__icon--close e-font-icon-svg e-eicon-close\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M742 167L500 408 258 167C246 154 233 150 217 150 196 150 179 158 167 167 154 179 150 196 150 212 150 229 154 242 171 254L408 500 167 742C138 771 138 800 167 829 196 858 225 858 254 829L496 587 738 829C750 842 767 846 783 846 800 846 817 842 829 829 842 817 846 804 846 783 846 767 842 750 829 737L588 500 833 258C863 229 863 200 833 171 804 137 775 137 742 167Z\"><\/path><\/svg>\t\t<\/div>\n\t\t\t\t\t<nav class=\"elementor-nav-menu--dropdown elementor-nav-menu__container\" aria-hidden=\"true\">\n\t\t\t\t<ul id=\"menu-2-307741f\" class=\"elementor-nav-menu\"><li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-1048\"><a href=\"https:\/\/www-new.ias.u-psud.fr\/index.php\/physique-du-systeme-solaire-et-des-systemes-planetaires\/#presentation\" class=\"elementor-item elementor-item-anchor menu-link\" tabindex=\"-1\">Pr\u00e9sentation<\/a><\/li>\n<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-1046\"><a href=\"https:\/\/www-new.ias.u-psud.fr\/index.php\/physique-du-systeme-solaire-et-des-systemes-planetaires\/#equipe\" class=\"elementor-item elementor-item-anchor menu-link\" tabindex=\"-1\">L&rsquo;\u00e9quipe<\/a><\/li>\n<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-1047\"><a href=\"https:\/\/www-new.ias.u-psud.fr\/index.php\/physique-du-systeme-solaire-et-des-systemes-planetaires\/#themes-scientifiques\" class=\"elementor-item elementor-item-anchor menu-link\" tabindex=\"-1\">Th\u00e8mes scientifiques<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-197a509 elementor-widget elementor-widget-menu-anchor\" data-id=\"197a509\" 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=\"presentation\"><\/div>\n\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<\/div>\n\t\t<div class=\"elementor-element elementor-element-512c367d e-flex e-con-boxed e-con e-parent\" data-id=\"512c367d\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-2d2d7b00 e-con-full e-flex e-con e-child\" data-id=\"2d2d7b00\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e05fcee elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"e05fcee\" 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\">Pr\u00e9sentation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-626d2469 elementor-widget elementor-widget-text-editor\" data-id=\"626d2469\" 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&rsquo;\u00e9quipe <strong>Physique du syst\u00e8me solaire et des syst\u00e8mes plan\u00e9taires <\/strong>m\u00e8ne des recherches sur trois th\u00e9matiques :<br \/>\u00a0 \u00a0 (1) Les plan\u00e8tes solides et les satellites du syst\u00e8me solaire<br \/>\u00a0 \u00a0 (2) Les ast\u00e9ro\u00efdes et les com\u00e8tes<br \/>\u00a0 \u00a0 (3) Les exoplan\u00e8tes<\/p><p><span class=\"kY2IgmnCmOGjharHErah N56cWZpP8cNJu1dqgCxB\">\u00c0<\/span> partir d\u2019instruments embarqu\u00e9s sur des missions spatiales, l\u2019\u00e9quipe s\u2019emploie \u00e0 mesurer la composition des surfaces et atmosph\u00e8res plan\u00e9taires.<br \/>L\u2019objectif est de caract\u00e9riser les processus d\u2019\u00e9volution physicochimique et climatique pour retracer l\u2019histoire des plan\u00e8tes.<\/p><p>L\u2019eau et le carbone font l\u2019objet d\u2019une attention particuli\u00e8re : o\u00f9 et dans quel \u00e9tat se trouve-t-ils aujourd\u2019hui dans le Syst\u00e8me solaire ? Quelle est leur histoire, depuis les apports primordiaux jusqu\u2019aux processus contemporains ? Quelle est la place de la Terre au sein de la diversit\u00e9 des plan\u00e8tes et exoplan\u00e8tes ?<\/p><p>Les recherches r\u00e9centes de l\u2019\u00e9quipe sont plus particuli\u00e8rement tourn\u00e9es vers la plan\u00e8te Mars, les ast\u00e9ro\u00efdes riches en eau et en carbone, les lunes glac\u00e9es de Jupiter, la plan\u00e8te Mercure et les atmosph\u00e8res des exoplan\u00e8tes. La composition de ces objets est \u00e9tudi\u00e9e \u00e0 l\u2019aide de spectrom\u00e8tres et d\u2019imageurs visible et infrarouge.<\/p><p>Notre d\u00e9marche consiste \u00e0 coupler la r\u00e9alisation d\u2019observation, le d\u00e9pouillement des donn\u00e9es obtenues, la mod\u00e9lisation num\u00e9rique et la simulation de laboratoire. L\u2019\u00e9quipe se distingue notamment par sa participation directe \u00e0 la r\u00e9alisation de nombreux instruments spatiaux, avec le souci constant d&rsquo;associer d\u00e9fis scientifiques et technologiques. L\u2019\u00e9quipe travaille \u00e9galement \u00e0 l&rsquo;analyse microscopique d&rsquo;\u00e9chantillons extraterrestres dans le cadre d\u2019une collaboration \u00e9troite avec l&rsquo;\u00e9quipe <a href=\"https:\/\/www-new.ias.u-psud.fr\/index.php\/astrochimie-et-origines\/\" target=\"_blank\" rel=\"noopener\">Astrochimie &amp; Origines<\/a>.<\/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-3a03562c e-con-full e-flex e-con e-child\" data-id=\"3a03562c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7027b0b6 elementor-widget__width-inherit elementor-widget elementor-widget-image\" data-id=\"7027b0b6\" 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 fetchpriority=\"high\" decoding=\"async\" width=\"450\" height=\"456\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image_page_presentation_30mai2025.png\" class=\"attachment-large size-large wp-image-944\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image_page_presentation_30mai2025.png 450w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image_page_presentation_30mai2025-296x300.png 296w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/>\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<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e4eaa24 e-con e-atomic-element e-flexbox-base e-e4eaa24-59b35af \" data-id=\"e4eaa24\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"e4eaa24\">\n    \t\t<div class=\"elementor-element elementor-element-8967760 elementor-blockquote--align-center elementor-blockquote--skin-border elementor-widget elementor-widget-blockquote\" data-id=\"8967760\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"blockquote.default\">\n\t\t\t\t\t\t\t<blockquote class=\"elementor-blockquote\">\n\t\t\t<p class=\"elementor-blockquote__content\">\n\t\t\t\t\u00ab Caract\u00e9riser les propri\u00e9t\u00e9s des surfaces, atmosph\u00e8res et environnements des plan\u00e8tes et petits corps du syst\u00e8me solaire, ainsi que des exoplan\u00e8tes, pour comprendre leur formation, leur \u00e9volution, et leur potentiel \u00e0 abriter la vie. \u00bb\n\n\t\t\t<\/p>\n\t\t\t\t\t\t\t<div class=\"e-q-footer\">\n\t\t\t\t\t\t\t\t\t\t\t<cite class=\"elementor-blockquote__author\">Mathieu Vincendon, Responsable de l'\u00e9quipe Plan\u00e9tologie <\/cite>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/blockquote>\n\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-ecdd970 e-con e-atomic-element e-flexbox-base e-cdb693a \" data-id=\"ecdd970\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"ecdd970\">\n    \t\t<div class=\"elementor-element elementor-element-5e178d7 elementor-widget elementor-widget-text-editor\" data-id=\"5e178d7\" 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>Trois grands types d\u2019exp\u00e9riences sont men\u00e9s par les membres de l\u2019\u00e9quipe A&amp;O :<\/strong><\/p><ul><li>Les mesures de caract\u00e9risations physico-chimiques de diff\u00e9rents types d\u2019\u00e9chantillons.<\/li><li>Les simulations exp\u00e9rimentales dont le but est de reproduire en laboratoire un processus ou un environnement astrophysique et d\u2019en \u00e9tudier les effets physiques et\/ou chimiques sur diff\u00e9rents types de mati\u00e8res solides.<\/li><li>Les exp\u00e9riences de production d&rsquo;analogues de mati\u00e8re extraterrestre (glaces, min\u00e9raux, mat\u00e9riaux organiques).<\/li><\/ul><p>Les m\u00e9thodes de caract\u00e9risation physico-chimique de l\u2019\u00e9quipe reposent principalement sur des techniques de spectroscopie, de microscopie et d\u2019imagerie utilis\u00e9es dans le but d\u2019analyser divers \u00e9chantillons extraterrestres : m\u00e9t\u00e9orites, poussi\u00e8res interplan\u00e9taires (commun\u00e9ment appel\u00e9es IDPs pour <em>Interplanetary Dust Particles<\/em>) collect\u00e9es dans la stratosph\u00e8re et des grains com\u00e9taires et ast\u00e9ro\u00efdaux collect\u00e9s par des sondes spatiales et ramen\u00e9s sur Terre.<\/p><p>Pour produire et\/ou analyser une large gamme d&rsquo;\u00e9chantillons d&rsquo;int\u00e9r\u00eat astrophysique,\u00a0 l\u2019\u00e9quipe A&amp;O a fait le choix strat\u00e9gique de d\u00e9velopper des analyses spectroscopiques et physico-chimiques sur des dispositifs se trouvant \u00e0 l\u2019IAS et de s&rsquo;appuyer fortement sur des\u00a0 collaborations interdisciplinaires, nationales et internationales, pour \u00e9tendre ses capacit\u00e9s d&rsquo;analyses aupr\u00e8s de plateformes nationales, de grands acc\u00e9l\u00e9rateurs, et des synchrotrons (l\u2019\u00e9quipe a d\u00e9velopp\u00e9 un partenariat de longue date avec <a href=\"https:\/\/www.synchrotron-soleil.fr\/fr\/lignes-de-lumiere\/smis\">la ligne SMIS du synchrotron SOLEIL<\/a>, elle b\u00e9n\u00e9ficie ainsi d\u2019un acc\u00e8s garanti aux instruments de la ligne et d\u00e9veloppe \u00e9galement des collaborations avec d\u2019autres lignes).<\/p><p>Les donn\u00e9es spectroscopiques d\u2019int\u00e9r\u00eat obtenues en laboratoire par l\u2019\u00e9quipe A&amp;O alimentent r\u00e9guli\u00e8rement la base de donn\u00e9es <a href=\"https:\/\/www.sshade.eu\/db\/daysy\">DAYSY<\/a> (Database for AstrochemistrY and SpectroscopY) qui fait partie de l\u2019architecture <a href=\"https:\/\/www.sshade.eu\/db\/daysy\">SSHADE<\/a> (Solid Spectroscopy Hosting Architecture of Databases and Expertise), labellis\u00e9e Europlanet (responsable B. Schmitt, <a href=\"https:\/\/ipag.osug.fr\/\">IPAG<\/a>, <a href=\"https:\/\/www.osug.fr\/\">OSUG<\/a>).<\/p><p>Cette base de donn\u00e9es permet d\u2019assurer l&rsquo;archivage, la tra\u00e7abilit\u00e9 et surtout l\u2019acc\u00e8s public \u00e0 une partie importante des donn\u00e9es exp\u00e9rimentales produites par l\u2019\u00e9quipe.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-b62ac5f e-con e-atomic-element e-flexbox-base e-f2cf49c \" data-id=\"b62ac5f\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"b62ac5f\">\n    \t\t<div class=\"elementor-element elementor-element-9233f93 elementor-widget elementor-widget-menu-anchor\" data-id=\"9233f93\" 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=\"equipe\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-f8a1f8a e-con-full e-flex e-con e-parent\" data-id=\"f8a1f8a\" 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-0a46df0 e-con-full e-flex e-con e-child\" data-id=\"0a46df0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cb8b757 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"cb8b757\" 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\">L'\u00e9quipe<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4774190 elementor-widget elementor-widget-text-editor\" data-id=\"4774190\" 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>Permanents :<\/strong><\/p><ul><li><a href=\"http:\/\/www.ias.universite-paris-saclay.fr\/annuaire?nom=bibring\">Jean-Pierre Bibring<\/a>, Prof Univ. Paris-Saclay<\/li><li><a href=\"http:\/\/www.ias.universite-paris-saclay.fr\/annuaire?nom=carter\">John Carter<\/a>, Astronome-adjoint<\/li><li><a href=\"http:\/\/www.ias.universite-paris-saclay.fr\/annuaire?nom=langevin\">Yves Langevin<\/a>, Directeur de Recherche<\/li><li><a href=\"https:\/\/www.ias.universite-paris-saclay.fr\/annuaire?nom=lantz\">Cateline Lantz<\/a>, Astronome-adjoint<\/li><li><a href=\"http:\/\/www.ias.universite-paris-saclay.fr\/annuaire?nom=ollivier\">Marc Ollivier<\/a>, Astronome<\/li><li><a href=\"http:\/\/www.ias.universite-paris-saclay.fr\/annuaire?nom=pilorget\">C\u00e9dric Pilorget<\/a>, Ma\u00eetre de conf\u00e9rences, Univ Paris-Saclay<\/li><li><a href=\"http:\/\/www.ias.universite-paris-saclay.fr\/pperso\/fpoulet\/\">Fran\u00e7ois Poulet<\/a><strong>, <\/strong>Astronome<\/li><li><strong><a href=\"http:\/\/www.ias.universite-paris-saclay.fr\/annuaire?nom=vincendon\">Mathieu Vincendon<\/a><\/strong>, Ma\u00eetre de conf\u00e9rences, Univ Paris-Saclay (responsable de l&rsquo;\u00e9quipe)<\/li><\/ul><p><strong>Th\u00e9sitifs :<\/strong><\/p><ul><li><span data-olk-copy-source=\"MessageBody\">Kecheng<\/span> Du<\/li><li><a href=\"https:\/\/www.ias.universite-paris-saclay.fr\/annuaire?nom=leclef\">Apolline Leclef <\/a><\/li><li><a href=\"https:\/\/www.ias.universite-paris-saclay.fr\/annuaire?nom=maillot\">Antoine Maillot <\/a><\/li><li><a href=\"https:\/\/www.ias.universite-paris-saclay.fr\/annuaire?nom=nardelli\">Laura Nardelli<\/a><\/li><\/ul><p><strong>Post Doctorants :<\/strong><\/p><ul><li><a href=\"https:\/\/www.ias.universite-paris-saclay.fr\/annuaire?nom=loizeau\">Damien Loizeau<\/a><\/li><li><a href=\"http:\/\/www.ias.universite-paris-saclay.fr\/annuaire?nom=royer\">Cl\u00e9ment Royer<\/a><\/li><li><a href=\"http:\/\/www.ias.universite-paris-saclay.fr\/annuaire?nom=sheppard\">Rachel Sheppard<\/a><\/li><li><a href=\"https:\/\/www.ias.universite-paris-saclay.fr\/annuaire?nom=jiang\">Jiang Te<\/a><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2fae1ae elementor-widget elementor-widget-menu-anchor\" data-id=\"2fae1ae\" 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=\"themes-scientifiques\"><\/div>\n\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-7d5cae5 e-con e-atomic-element e-flexbox-base e-29e8546 \" data-id=\"7d5cae5\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"7d5cae5\">\n    \t\t<div class=\"elementor-element elementor-element-13ef93d elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"13ef93d\" 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\">Th\u00e8mes scientifiques<\/h2>\t\t\t\t<\/div>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-a02e41c e-con e-atomic-element e-flexbox-base e-a02e41c-91be703 \" data-id=\"a02e41c\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"a02e41c\">\n    \t\t<div class=\"elementor-element elementor-element-5782c25 elementor-widget elementor-widget-text-editor\" data-id=\"5782c25\" 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\u2019\u00e9quipe a contribu\u00e9 \u00e0 de nombreux r\u00e9sultats scientifiques de premier plan au cours des derni\u00e8res d\u00e9cennies. Cette page pr\u00e9sente trois d\u00e9couvertes fondatrices.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-8e32670 e-con e-atomic-element e-flexbox-base e-8e32670-409ef45 \" data-id=\"8e32670\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"8e32670\">\n    <div class=\"elementor-element elementor-element-5a2787b e-con e-atomic-element e-flexbox-base e-5a2787b-ea2326d \" data-id=\"5a2787b\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"5a2787b\">\n    \t\t<div class=\"elementor-element elementor-element-4a95a9c elementor-widget elementor-widget-image\" data-id=\"4a95a9c\" 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 decoding=\"async\" width=\"768\" height=\"673\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image1_page_resultats_marquants_30mai2025-768x673.png\" class=\"attachment-medium_large size-medium_large wp-image-945\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image1_page_resultats_marquants_30mai2025-768x673.png 768w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image1_page_resultats_marquants_30mai2025-300x263.png 300w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image1_page_resultats_marquants_30mai2025-1024x898.png 1024w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image1_page_resultats_marquants_30mai2025.png 1200w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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-2a084ac elementor-widget elementor-widget-text-editor\" data-id=\"2a084ac\" 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>Sur l\u2019image ci-dessus, les d\u00e9tections infrarouges d\u2019argiles de l\u2019instrument OMEGA, sur la mission Mars Express, sont repr\u00e9sent\u00e9es en bleu sur l\u2019image de droite. Ces min\u00e9raux t\u00e9moignent de la pr\u00e9sence d\u2019eau liquide qui a alt\u00e9r\u00e9 les terrains les plus anciens de Mars qui n\u2019affleurent qu\u2019\u00e0 certains endroits sur la plan\u00e8te.<\/p><p>Figure extraite de l\u2019article de 2005 \u00ab\u00a0<a href=\"https:\/\/www.ias.universite-paris-saclay.fr\/sites\/default\/files\/planetaires\/Poulet_Nature_2005.pdf\">Phyllosilicates on Mars and implications for early martian climate<\/a>\u00a0\u00bb<\/p><p>Voir \u00e9galement l\u2019ouvrage de vulgarisation \u00ab <a href=\"https:\/\/www.odilejacob.fr\/catalogue\/sciences\/astronomie-astrophysique-cosmologie\/mars-planete-bleue-_9782738123282.php\">Mars Plan\u00e8te bleue, Jean-Pierre Bibring, Odile Jacob, 2009<\/a> \u00bb ainsi que la <a href=\"https:\/\/www.youtube.com\/watch?v=a62gnrrJp4U&amp;list=PL-GL80g2OlE0TFUR0L1zo31sAm4B0pt3R&amp;index=1\" target=\"_blank\" rel=\"noopener\">vid\u00e9o r\u00e9alis\u00e9e dans le cadre des 80 ans du CNRS<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-c1c023a e-con e-atomic-element e-flexbox-base e-c1c023a-b386d61 \" data-id=\"c1c023a\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"c1c023a\">\n    \t\t<div class=\"elementor-element elementor-element-38e4e29 elementor-widget elementor-widget-image\" data-id=\"38e4e29\" 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 decoding=\"async\" width=\"1200\" height=\"406\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image2_page_resultats_marquants_30mai2025.png\" class=\"attachment-full size-full wp-image-946\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image2_page_resultats_marquants_30mai2025.png 1200w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image2_page_resultats_marquants_30mai2025-300x102.png 300w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image2_page_resultats_marquants_30mai2025-1024x346.png 1024w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image2_page_resultats_marquants_30mai2025-768x260.png 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-a7e0154 elementor-widget elementor-widget-text-editor\" data-id=\"a7e0154\" 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>Ce graphique pr\u00e9sente la courbe de lumi\u00e8re mesur\u00e9e par le satellite CoRoT lors de l\u2019observation du passage de l\u2019exoplan\u00e8te CoRoT-7 devant son \u00e9toile. Il s\u2019agit de la premi\u00e8re exoplan\u00e8te tellurique confirm\u00e9e de densit\u00e9 comparable \u00e0 la Terre.<\/p><p>Figure extraite de l\u2019article de 2009 \u00ab\u00a0<a href=\"https:\/\/www.ias.universite-paris-saclay.fr\/sites\/default\/files\/planetaires\/Leger_AA_2009_reduit.pdf\">Transiting exoplanets from the CoRoT space mission. VIII. CoRoT-7b: the first super-Earth with measured radius<\/a>\u00a0\u00bb<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n\n<\/div>\n<div class=\"elementor-element elementor-element-bd99c6a e-con e-atomic-element e-flexbox-base e-bd99c6a-27bbed2 \" data-id=\"bd99c6a\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"bd99c6a\">\n    <div class=\"elementor-element elementor-element-b687886 e-con e-atomic-element e-flexbox-base e-b687886-d42074f \" data-id=\"b687886\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"b687886\">\n    \t\t<div class=\"elementor-element elementor-element-4a863d4 elementor-widget elementor-widget-image\" data-id=\"4a863d4\" 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=\"768\" height=\"449\" src=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image3_page_resultats_marquants_30mai2025-768x449.jpg\" class=\"attachment-medium_large size-medium_large wp-image-947\" alt=\"\" srcset=\"https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image3_page_resultats_marquants_30mai2025-768x449.jpg 768w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image3_page_resultats_marquants_30mai2025-300x176.jpg 300w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image3_page_resultats_marquants_30mai2025-1024x599.jpg 1024w, https:\/\/www.ias.u-psud.fr\/wp-content\/uploads\/2026\/07\/Image3_page_resultats_marquants_30mai2025.jpg 1200w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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-ebf3c4d elementor-widget elementor-widget-text-editor\" data-id=\"ebf3c4d\" 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>Cette image est la premi\u00e8re prise depuis la surface d\u2019une com\u00e8te, par l\u2019instrument CIVA de l\u2019atterrisseur Philae de la mission ROSETTA. Elle montre les mat\u00e9riaux expos\u00e9s \u00e0 la surface de la com\u00e8te, qui contiennent de la mati\u00e8re organique.<\/p><p>Figure extraite de l\u2019article de 2015 \u00ab\u00a0<a href=\"https:\/\/www.ias.universite-paris-saclay.fr\/sites\/default\/files\/planetaires\/Bibring_Science_2015_reduit.pdf\">67P\/Churyumov-Gerasimenko surface properties as derived from CIVA panoramic images<\/a>\u00a0\u00bb<\/p><p>Voir \u00e9galement l\u2019outil de r\u00e9alit\u00e9 virtuel d\u00e9velopp\u00e9 autour des donn\u00e9es de cette mission :\u00a0<\/p><p>&#8211;\u00a0<a href=\"https:\/\/www.ias.u-psud.fr\/sites\/default\/files\/planetaires\/Chury_Autonome_1080p_60fps.mp4\">Mode survol<\/a><\/p><p>&#8211;\u00a0<a href=\"https:\/\/www.ias.u-psud.fr\/sites\/default\/files\/planetaires\/Chury_Trailer_v2.mp4\">Trailer V2<\/a><\/p><p>&#8211;\u00a0<a href=\"https:\/\/www.ias.u-psud.fr\/sites\/default\/files\/planetaires\/Philae_Landing_1080p_60fps.mp4\">Mode landing<\/a>\u00a0 \u00a0\u00a0<\/p><p>Ainsi que la <a href=\"https:\/\/www.youtube.com\/watch?v=y-DX36JbTcw&amp;list=PL-GL80g2OlE0TFUR0L1zo31sAm4B0pt3R&amp;index=3\" target=\"_blank\" rel=\"noopener\">vid\u00e9o suivante r\u00e9alis\u00e9e dans le cadre des 80 ans du CNRS<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n\n<\/div>\n\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Pr\u00e9sentation L&rsquo;\u00e9quipe Physique du syst\u00e8me solaire et des syst\u00e8mes plan\u00e9taires m\u00e8ne des recherches sur trois th\u00e9matiques :\u00a0 \u00a0 (1) Les [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"inline_featured_image":false,"site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","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":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","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 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-942","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/pages\/942","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/types\/page"}],"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=942"}],"version-history":[{"count":16,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/pages\/942\/revisions"}],"predecessor-version":[{"id":3747,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/pages\/942\/revisions\/3747"}],"wp:attachment":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/media?parent=942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}