{"id":4536,"date":"2015-12-25T08:31:38","date_gmt":"2015-12-25T08:31:38","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=4536"},"modified":"2016-01-07T05:13:27","modified_gmt":"2016-01-07T05:13:27","slug":"eso-593-ig-008-la-fee-clochette-dans-le-sagittaire","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/12\/25\/eso-593-ig-008-la-fee-clochette-dans-le-sagittaire\/","title":{"rendered":"ESO 593-IG 008, la f\u00e9e Clochette dans le Sagittaire"},"content":{"rendered":"<p><strong>ESO 593-IG 008 est le r\u00e9sultat d&#8217;une collision cosmique entre trois galaxies. Surnomm\u00e9 <em>The bird<\/em> (l&#8217;oiseau), son aspect \u00e9voque surtout celui d&#8217;une f\u00e9e.<\/strong><\/p>\n<p>Situ\u00e9 \u00e0 650 millions d&#8217;ann\u00e9es-lumi\u00e8re dans la <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/23\/explosion-dune-etoile-dans-la-constellation-du-sagittaire\/\" target=\"_blank\">constellation du Sagittaire<\/a>, ESO 593-IG 008 est le r\u00e9sultat de la rencontre entre deux <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/10\/17\/deux-celebres-galaxies-encadrent-letoile-mirach\/\" target=\"_blank\">galaxies spirales<\/a> et une galaxie irr\u00e9guli\u00e8re. Il aura fallu la puissance de l&#8217;instrument NACO pour en arriver \u00e0 cette conclusion, alors qu&#8217;on a longtemps pens\u00e9 que deux galaxies seulement \u00e9taient impliqu\u00e9es dans cette collision cosmique.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/12\/eso3.jpg\" rel=\"lightbox[4536]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-4537\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/12\/eso3-450x349.jpg\" alt=\"eso\" width=\"450\" height=\"349\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/12\/eso3-450x349.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/12\/eso3-1024x794.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/12\/eso3.jpg 1244w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.eso.org\/public\/france\/teles-instr\/vlt\/vlt-instr\/naco\/\" target=\"_blank\">NACO<\/a> est la contraction de <em>Nasmyth Adaptive Optics System<\/em> (NAOS) et <em>Near-Infrared Imager and Spectrograph<\/em> (CONICA), un spectrographe qui travaille dans l&#8217;infrarouge coupl\u00e9 \u00e0 un syst\u00e8me d&#8217;optique adaptative destin\u00e9 \u00e0 corriger les turbulences de l&#8217;atmosph\u00e8re terrestre.<\/p>\n<p><!--more-->L&#8217;observation en infrarouge de ESO 593-IG 008 \u00e9tait indispensable pour parvenir \u00e0 traverser la poussi\u00e8re cosmique entre nous et cet objet c\u00e9leste, qui jusqu&#8217;alors n&#8217;avait \u00e9t\u00e9 vu que par le t\u00e9lescope spatial infrarouge IRAS (ce qui vaut \u00e0 ESO 593-IG 008 d&#8217;\u00eatre \u00e9galement catalogu\u00e9 sous le matricule IRAS 19115-2124).<\/p>\n<p>L&#8217;image r\u00e9alis\u00e9e par le <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/10\/28\/en-video-le-centre-galactique-passe-au-zenith-du-vlt\/\" target=\"_blank\">VLT<\/a>, l&#8217;un des t\u00e9lescopes g\u00e9ant de l&#8217;<a href=\"https:\/\/www.eso.org\/public\/france\/images\/eso0755a\/\" target=\"_blank\">ESO<\/a>,\u00a0 fait ind\u00e9niablement penser \u00e0 la f\u00e9e Clochette, ce petit personnage f\u00e9minin de fiction (cr\u00e9\u00e9 en 1904) amoureux de Peter Pan. Les &#8220;ailes&#8221; de la f\u00e9e sont des queux de mar\u00e9e,\u00a0 de longs filaments compos\u00e9s d&#8217;\u00e9toiles et de gaz interstellaire qui s&#8217;\u00e9tirent sur 100.000 ann\u00e9es-lumi\u00e8re, une taille \u00e9quivalente \u00e0 la longueur de notre Galaxie, la <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/04\/14\/la-voie-lactee-se-deploie-au-dessus-du-col-du-lautaret\/\" target=\"_blank\">Voie lact\u00e9e<\/a>. Les queues de mar\u00e9es sont produites par la force de mar\u00e9e galactique quand plusieurs galaxies entrent en interaction.<\/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>ESO 593-IG 008 est le r\u00e9sultat d&#8217;une collision cosmique entre trois galaxies. Surnomm\u00e9 The bird (l&#8217;oiseau), son aspect \u00e9voque surtout celui d&#8217;une f\u00e9e. Situ\u00e9 \u00e0 650 millions d&#8217;ann\u00e9es-lumi\u00e8re dans la constellation du Sagittaire, ESO 593-IG 008 est le r\u00e9sultat de la rencontre entre deux galaxies spirales et une galaxie irr\u00e9guli\u00e8re. Il aura fallu la puissance &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/12\/25\/eso-593-ig-008-la-fee-clochette-dans-le-sagittaire\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">ESO 593-IG 008, la f\u00e9e Clochette dans le Sagittaire<\/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":4537,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[84],"tags":[496,633,1411,1415,1412,1229,1413,1414,637],"class_list":["post-4536","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciel-etoile","tag-constellation-du-sagittaire","tag-eso","tag-eso-593-ig-008","tag-fee-clochette","tag-galaxie-irreguliere","tag-galaxie-spirale","tag-naco","tag-peter-pan","tag-vlt"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ESO 593-IG 008, la f\u00e9e Clochette dans le Sagittaire<\/title>\n<meta name=\"description\" content=\"ESO 593-IG 008 est le r\u00e9sultat d&#039;une collision cosmique entre trois galaxies. 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