{"id":1850,"date":"2025-03-19T11:15:07","date_gmt":"2025-03-19T10:15:07","guid":{"rendered":"https:\/\/www-new.ias.u-psud.fr\/?p=1850"},"modified":"2026-09-11T13:56:27","modified_gmt":"2026-09-11T11:56:27","slug":"euclid-livre-ses-premiers-morceaux-de-releve-du-ciel","status":"publish","type":"post","link":"https:\/\/www.ias.u-psud.fr\/index.php\/2025\/03\/19\/euclid-livre-ses-premiers-morceaux-de-releve-du-ciel\/","title":{"rendered":"Euclid livre ses premiers morceaux de relev\u00e9 du ciel"},"content":{"rendered":"\t\t
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Maelys Demay \/ IAS<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n

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Euclid livre ses premiers morceaux de relev\u00e9 du ciel<\/h1>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Mercredi 19 mars 2025 \u00e0 midi, l\u2019ESA rend disponibles les premi\u00e8res donn\u00e9es du relev\u00e9 de la mission spatiale Euclid.
 
Trois zones du ciel, d\u2019une surface totale de 63 degr\u00e9s carr\u00e9s, ont \u00e9t\u00e9 observ\u00e9es puis analys\u00e9es par les scientifiques de la collaboration, avec notamment la d\u00e9tection de 29 millions de sources. Ces donn\u00e9es, dites Q1 et qui ne repr\u00e9sentent que 0,45% des observations pr\u00e9vues pour Euclid dans les prochaines ann\u00e9es, ont d\u00e9j\u00e0 permis de nombreuses avanc\u00e9es illustrant l\u2019extraordinaire capacit\u00e9 d\u2019Euclid \u00e0 contribuer \u00e0 tous les domaines de l\u2019astrophysique. Le Consortium Euclid publie en ce jour de nouveaux r\u00e9sultats scientifiques accompagnant les donn\u00e9es.
 
Les \u00e9quipes de l\u2019IAS \u00e0 Orsay ont activement contribu\u00e9 aux diff\u00e9rentes phases de la mission Euclid - de la premi\u00e8re proposition \u00e0 l\u2019ESA jusqu'aux derniers r\u00e9sultats scientifiques. Initialement en instrumentation, avec la conception et livraison de la lampe d\u2019\u00e9talonnage (CU) de l\u2019imageur VIS, ainsi que de nombreux tests en amont du lancement, cette participation est rest\u00e9e tr\u00e8s importante. Elle concerne d\u00e9sormais les analyses scientifiques, mais aussi le segment sol, et particuli\u00e8rement le groupe OU-MER. Ce dernier a pour fonction de fusionner les images en provenance d\u2019autres observatoires, indispensables compl\u00e9ments aux donn\u00e9es d\u2019Euclid, et de fournir le catalogue officiel de sources astrophysiques \u00e0 la communaut\u00e9.
34 premiers articles scientifiques, dont 7 concernant le segment sol scientifique, sont soumis et associ\u00e9s \u00e0 ces donn\u00e9es. D\u2019autres articles suivront bient\u00f4t.<\/p>\n\t\t\n<\/div>\n

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R\u00e9f\u00e9rence<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Vous pouvez suivre la retransmision du communiqu\u00e9 de l’ESA le 19 \u00e0 midi sur :\u00a0<\/p>

La premi\u00e8re plong\u00e9e profonde d’Euclid dans l’Univers<\/a><\/p>

Et trouver plus d’informations sur le communiqu\u00e9 de l’ESA :\u00a0<\/p>

Follow the reveal of Euclid\u2019s first catalogue on 19 March<\/em><\/a><\/p>

Pour \u00e9voquer la mission, ces donn\u00e9es et r\u00e9sultats Euclid, suivez ce jeudi 20 mars \u00e0 20h30 une \u00e9mission en direct sera diffus\u00e9e sur la chaine youtube de l\u2019Universit\u00e9 Paris-Saclay depuis l’exceptionnel site de l’Observatoire de Haute-Provence: une soir\u00e9e astrophysique anim\u00e9e par AstroPierre, avec la participation de plusieurs chercheuses et chercheurs, ainsi que \u00e9tudiantes et \u00e9tudiants de Master:
– r\u00e9sultats de la mission spatiale europ\u00e9enne Euclid Q1;
– visite d’un t\u00e9lescope de l’Observatoire de Haute-Provence;
– t\u00e9moignages des scientifiques et \u00e9tudiants sur leurs parcours et motivations.
\u00a0<\/a>
Lien du live<\/a>
Informatiques sur le live <\/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":"

Mercredi 19 mars 2025 \u00e0 midi, l\u2019ESA rend disponibles les premi\u00e8res donn\u00e9es du relev\u00e9 de la mission spatiale Euclid.<\/p>\n","protected":false},"author":3,"featured_media":1858,"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-1850","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\/1850","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=1850"}],"version-history":[{"count":9,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts\/1850\/revisions"}],"predecessor-version":[{"id":2720,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/posts\/1850\/revisions\/2720"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/media\/1858"}],"wp:attachment":[{"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/media?parent=1850"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/categories?post=1850"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ias.u-psud.fr\/index.php\/wp-json\/wp\/v2\/tags?post=1850"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}