Le projet de th\u00e8se se propose de revenir sur les diff\u00e9rentes hypoth\u00e8ses \u00e9voqu\u00e9es, qui in\u00e9vitablement introduisent des biais et sont sources d\u2019incertitudes syst\u00e9matiques, et d\u2019adopter une approche alternative : mesurer directement la d\u00e9formation de l\u2019espace-temps induite par des amas de galaxies, en \u00e9tudiant les g\u00e9od\u00e9siques suivies par les photons aux abords de ces structures massives. En partant des \u00e9quations de la relativit\u00e9 g\u00e9n\u00e9rale, et en adoptant un nombre tr\u00e8s limit\u00e9 d\u2019hypoth\u00e8ses, un outil de simulation sera construit. Cet outil permettra de simuler, \u00e9tant donn\u00e9 une distribution de masse donn\u00e9e, le chemin de la lumi\u00e8re et d\u2019en d\u00e9duire les effets observationnels. Dans le cas des amas de galaxie, qui est l\u2019expertise du groupe LSST du LAPP, les effets de lentillage gravitationnel faible (d\u00e9formation des images des galaxies en arri\u00e8re-plan) pourront \u00eatre pr\u00e9dits, puis compar\u00e9s aux observations.<\/p>\n
Directrice de th\u00e8se : Regimbau Tania<\/span><\/p>\n Laboratoire :\u202f<\/span> Laboratoire d\u2019Annecy de Physique des Particules (LAPP)<\/p>\n Axe : Services et Industrie du Futur<\/p>\n En cours depuis : 2025<\/p>\n","protected":false},"featured_media":9272,"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-8159","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\/8159","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\/8159\/revisions"}],"predecessor-version":[{"id":9263,"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/projet\/8159\/revisions\/9263"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/media\/9272"}],"wp:attachment":[{"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/media?parent=8159"}],"wp:term":[{"taxonomy":"categorie","embeddable":true,"href":"https:\/\/www.univ-smb.fr\/institut-transitions\/wp-json\/wp\/v2\/categorie?post=8159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Axes de recherche<\/h2>\n