{"id":2059,"date":"2015-03-10T05:57:55","date_gmt":"2015-03-10T05:57:55","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=2059"},"modified":"2015-03-13T05:53:02","modified_gmt":"2015-03-13T05:53:02","slug":"avec-muse-le-vlt-surpasse-le-telescope-spatial-hubble","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/10\/avec-muse-le-vlt-surpasse-le-telescope-spatial-hubble\/","title":{"rendered":"Avec MUSE, le VLT surpasse le t\u00e9lescope spatial Hubble"},"content":{"rendered":"<p>Pour mieux reconstituer l&#8217;histoire de notre <a title=\"Deux bulles de gaz g\u00e9antes autour de la Voie lact\u00e9e\" href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/02\/05\/deux-bulles-de-gaz-geantes-autour-de-la-voie-lactee\/\" target=\"_blank\">Voie lact\u00e9e<\/a>, les <a title=\"Lumi\u00e8re rouge pour les astronomes\" href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/12\/14\/lumiere-rouge-les-astronomes\/\" target=\"_blank\">astronomes <\/a>ont besoin d&#8217;observer de tr\u00e8s jeunes <a title=\"Les Antennes, une paire de galaxies en interaction\" href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/02\/24\/les-antennes-une-paire-de-galaxies-en-interaction\/\" target=\"_blank\">galaxies <\/a>aux confins de l&#8217;Univers, \u00e0 plus de dix milliards d\u2019ann\u00e9es-lumi\u00e8re\u00a0: un v\u00e9ritable d\u00e9fi car \u00e0 de telles distances les galaxies sont minuscules et tr\u00e8s faiblement lumineuses.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/03\/muse.jpg\" rel=\"lightbox[2059]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-2060\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/03\/muse-450x309.jpg\" alt=\"muse\" width=\"450\" height=\"309\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/03\/muse-450x309.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/03\/muse-1024x704.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/03\/muse.jpg 1200w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Par le pass\u00e9 on a utilis\u00e9 \u00e0 plusieurs reprises le <a title=\"Hubble Site\" href=\"http:\/\/hubblesite.org\/\" target=\"_blank\">t\u00e9lescope spatial Hubble<\/a> pour r\u00e9aliser des images de ciel tr\u00e8s profond en cumulant des poses sur plusieurs jours. Les images fournies r\u00e9v\u00e9laient une multitude d&#8217;astres dont les astronomes devaient ensuite r\u00e9aliser le spectre, un long travail qui n&#8217;est toujours pas termin\u00e9.<\/p>\n<p><!--more-->Il y a quelques ann\u00e9es une \u00e9quipe du <a title=\"CRAL\" href=\"http:\/\/cral.univ-lyon1.fr\/\" target=\"_blank\">Centre de Recherche Astrophysique de Lyon<\/a> a propos\u00e9 un concept r\u00e9volutionnaire\u00a0: un spectrographe int\u00e9gral de champ ou spectrographe 3D, qui soit \u00e0 la fois un spectrographe et un imageur capable de fournir un spectre de toute source lumineuse pr\u00e9sente dans le champ de l&#8217;instrument. En somme un outil tr\u00e8s sensible capable de donner imm\u00e9diatement (gr\u00e2ce \u00e0 leur spectre) la localisation et la distance de tr\u00e8s jeunes galaxies.<\/p>\n<p>C&#8217;est ainsi qu&#8217;est n\u00e9 <a title=\"MUSE\" href=\"http:\/\/www.eso.org\/sci\/facilities\/develop\/instruments\/muse.html\" target=\"_blank\">MUSE <\/a>(<em>Multi Unit Spectroscopic Explorer<\/em>), un monstre de 5 tonnes r\u00e9alis\u00e9 par 7 grands laboratoires europ\u00e9ens et install\u00e9 derri\u00e8re l&#8217;un des\u00a0<a title=\"VLT\" href=\"http:\/\/www.eso.org\/public\/france\/teles-instr\/vlt\/\" target=\"_blank\">VLT<\/a>, un ensemble de 4 tr\u00e8s grands t\u00e9lescopes de l&#8217;<a title=\"VLT \u2013 au-del\u00e0 de Hubble, MUSE dessine l\u2019image tridimensionnelle de l\u2019Univers lointain\" href=\"http:\/\/www.eso.org\/public\/france\/news\/eso1507\/\" target=\"_blank\">ESO<\/a> (8,2 m\u00e8tres de diam\u00e8tre) situ\u00e9s dans le d\u00e9sert chilien d&#8217;Atacama \u00e0 plus de 2.600 m\u00e8tres d&#8217;altitude.<\/p>\n<p>MUSE a r\u00e9alis\u00e9 sa premi\u00e8re image en juillet 2014 en pointant pendant quatre nuits une r\u00e9gion de l&#8217;Univers tr\u00e8s lointaine d\u00e9j\u00e0 sond\u00e9e par le t\u00e9lescope Hubble\u00a0: MUSE, qui a collect\u00e9 pr\u00e8s de 90 000 spectres \u00e0 cette occasion, a d\u00e9j\u00e0 d\u00e9nich\u00e9 26 galaxies trop faibles pour \u00eatre vues par le t\u00e9lescope spatial et les chercheurs se r\u00e9jouissent d\u00e9j\u00e0 des nombreuses d\u00e9couvertes que devrait permettre ce spectrographe-imageur r\u00e9volutionnaire.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Pour mieux reconstituer l&#8217;histoire de notre Voie lact\u00e9e, les astronomes ont besoin d&#8217;observer de tr\u00e8s jeunes galaxies aux confins de l&#8217;Univers, \u00e0 plus de dix milliards d\u2019ann\u00e9es-lumi\u00e8re\u00a0: un v\u00e9ritable d\u00e9fi car \u00e0 de telles distances les galaxies sont minuscules et tr\u00e8s faiblement lumineuses. Par le pass\u00e9 on a utilis\u00e9 \u00e0 plusieurs reprises le t\u00e9lescope spatial &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/10\/avec-muse-le-vlt-surpasse-le-telescope-spatial-hubble\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Avec MUSE, le VLT surpasse le t\u00e9lescope spatial Hubble<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":8,"featured_media":2060,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[509],"tags":[279,94,879,633,112,881,878,880,544,476,637,166],"class_list":["post-2059","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-annee-lumiere","tag-astronome","tag-cral","tag-eso","tag-galaxie","tag-muse","tag-spectre","tag-spectrographe","tag-telescope-spatial-hubble","tag-univers","tag-vlt","tag-voie-lactee"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Avec MUSE, le VLT surpasse le t\u00e9lescope spatial Hubble<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/10\/avec-muse-le-vlt-surpasse-le-telescope-spatial-hubble\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Avec MUSE, le VLT surpasse le t\u00e9lescope spatial Hubble\" \/>\n<meta property=\"og:description\" content=\"Pour mieux reconstituer l&#8217;histoire de notre Voie lact\u00e9e, les astronomes ont besoin d&#8217;observer de tr\u00e8s jeunes galaxies aux confins de l&#8217;Univers, \u00e0 plus de dix milliards d\u2019ann\u00e9es-lumi\u00e8re\u00a0: un v\u00e9ritable d\u00e9fi car \u00e0 de telles distances les galaxies sont minuscules et tr\u00e8s faiblement lumineuses. Par le pass\u00e9 on a utilis\u00e9 \u00e0 plusieurs reprises le t\u00e9lescope spatial &hellip; Continuer la lecture de Avec MUSE, le VLT surpasse le t\u00e9lescope spatial Hubble &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/10\/avec-muse-le-vlt-surpasse-le-telescope-spatial-hubble\/\" \/>\n<meta property=\"og:site_name\" content=\"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel\" \/>\n<meta property=\"article:published_time\" content=\"2015-03-10T05:57:55+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2015-03-13T05:53:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/03\/muse.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"825\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Jean-Baptiste FELDMANN\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jean-Baptiste FELDMANN\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/10\/avec-muse-le-vlt-surpasse-le-telescope-spatial-hubble\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/10\/avec-muse-le-vlt-surpasse-le-telescope-spatial-hubble\/\",\"name\":\"Avec MUSE, le VLT surpasse le t\u00e9lescope spatial Hubble\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/10\/avec-muse-le-vlt-surpasse-le-telescope-spatial-hubble\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/10\/avec-muse-le-vlt-surpasse-le-telescope-spatial-hubble\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/03\/muse.jpg\",\"datePublished\":\"2015-03-10T05:57:55+00:00\",\"dateModified\":\"2015-03-13T05:53:02+00:00\",\"author\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/10\/avec-muse-le-vlt-surpasse-le-telescope-spatial-hubble\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/10\/avec-muse-le-vlt-surpasse-le-telescope-spatial-hubble\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/03\/muse.jpg\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/03\/muse.jpg\",\"width\":1200,\"height\":825},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#website\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/\",\"name\":\"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel\",\"description\":\"&quot;J&#039;ai en moi un besoin terrible. 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