{"id":8174,"date":"2026-06-09T14:39:37","date_gmt":"2026-06-09T12:39:37","guid":{"rendered":"https:\/\/www.univ-smb.fr\/institut-transitions\/?post_type=projet&p=8174"},"modified":"2026-06-23T14:57:09","modified_gmt":"2026-06-23T12:57:09","slug":"these-baptiste-bouvier-sif","status":"publish","type":"projet","link":"https:\/\/www.univ-smb.fr\/institut-transitions\/projet\/these-baptiste-bouvier-sif\/","title":{"rendered":"[Th\u00e8se] BOUCHET Matthieu – LAPTh"},"content":{"rendered":"

Transport des rayons cosmiques : turbulence et non-lin\u00e9arit\u00e9s<\/h2>\n

Pr\u00e9sentation<\/h2>\n

Description du projet<\/h3>\n

Il y a un nombre incalculable de particules voyageant au sein de notre galaxie ; parmi elles, figurent les particules composant la lumi\u00e8re : les photons. Ceux-ci sont principalement \u00e9mis par les \u00e9toiles et se d\u00e9placent en ligne droite jusqu\u2019\u00e0 votre r\u00e9tine. Vous pouvez donc \u00eatre certain qu\u2019une \u00e9toile que vous fixez dans le ciel se situe l\u00e0 o\u00f9 vous la regardez.\u00a0 Les rayons cosmiques (RCs) se comportent tout \u00e0 fait diff\u00e9remment. Ce sont des atomes priv\u00e9s de quelques \u00e9lectrons\u00a0; ils sont donc sensibles au champ magn\u00e9tique turbulent de notre galaxie, qui les transporte le long de chemins impr\u00e9visibles avant de nous parvenir. Les \u00e9quations r\u00e9gissant le transport des RCs sont transform\u00e9es par la turbulence et deviennent non-lin\u00e9aires, c\u2019est-\u00e0-dire tr\u00e8s difficile \u00e0 r\u00e9soudre. J\u2019utilise alors des simulations num\u00e9riques simplifi\u00e9es de turbulence magn\u00e9tique, o\u00f9 j\u2019\u00e9tudie le comportement des RCs que je propage, \u00e0 l\u2019aide d\u2019outils statistiques, afin d\u2019y extraire un peu de pr\u00e9dictibilit\u00e9. Mon objectif est de d\u00e9velopper des th\u00e9ories d\u00e9crivant ce que nos t\u00e9lescopes observent et de relier les RCs \u00e0 leurs sources, comme les supernovas, qui font partie des objets les plus myst\u00e9rieux de notre univers.<\/p>\n

\u00c9quipe<\/h2>\n

Directrice de th\u00e8se : Francesca Calore <\/span><\/p>\n

Laboratoire :\u202f<\/span> Laboratoire d’Annecy de Physique Th\u00e9orique (LAPTh)<\/p>\n

Axes de recherche<\/h2>\n

Axe : Services et Industrie du Futur<\/p>\n

En cours depuis : 2024<\/p>\n","protected":false},"featured_media":9335,"template":"","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":""},"categorie":[80,92,98],"class_list":["post-8174","projet","type-projet","status-publish","has-post-thumbnail","hentry","categorie-en-cours","categorie-axe-sif","categorie-theses"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/projet\/8174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/projet"}],"about":[{"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/types\/projet"}],"version-history":[{"count":3,"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/projet\/8174\/revisions"}],"predecessor-version":[{"id":9332,"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/projet\/8174\/revisions\/9332"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/media\/9335"}],"wp:attachment":[{"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/media?parent=8174"}],"wp:term":[{"taxonomy":"categorie","embeddable":true,"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/categorie?post=8174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}