{"id":3279,"date":"2015-07-28T06:07:35","date_gmt":"2015-07-28T06:07:35","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=3279"},"modified":"2015-08-08T06:40:17","modified_gmt":"2015-08-08T06:40:17","slug":"le-plus-grand-radiotelescope-du-monde-sera-chinois","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/07\/28\/le-plus-grand-radiotelescope-du-monde-sera-chinois\/","title":{"rendered":"Le plus grand radiot\u00e9lescope du monde sera chinois"},"content":{"rendered":"<p><strong>La Chine a commenc\u00e9 l&#8217;assemblage d&#8217;un radiot\u00e9lescope g\u00e9ant de 500 m\u00e8tres de diam\u00e8tre dans les montagnes de la\u00a0province du Guizhou.<\/strong><\/p>\n<p>Situ\u00e9e dans le sud-ouest de la Chine, la\u00a0province du Guizhou est une r\u00e9gion montagneuse difficile d&#8217;acc\u00e8s. C&#8217;est dans une cuvette naturelle entour\u00e9e par trois collines qu&#8217;a d\u00e9marr\u00e9 la construction d&#8217;une antenne sph\u00e9rique de 500 m\u00e8tres de diam\u00e8tre, l&#8217;\u00e9quivalent de la surface de 30 terrains de football !<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/07\/chine1.jpg\" rel=\"lightbox[3279]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-3280\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/07\/chine1-450x243.jpg\" alt=\"chine1\" width=\"450\" height=\"243\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/07\/chine1-450x243.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/07\/chine1.jpg 1000w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Surnomm\u00e9 <a href=\"http:\/\/arxiv.org\/ftp\/arxiv\/papers\/1105\/1105.3794.pdf\" target=\"_blank\">FAST<\/a> (pour <em>Five hundred meter Aperture Spherical Telescope<\/em>), ce radiot\u00e9lescope chinois ressemble beaucoup \u00e0 celui d&#8217;<a href=\"https:\/\/www.naic.edu\/\" target=\"_blank\">Arecibo<\/a> sur l&#8217;\u00eele de Porto Rico, une antenne de 300 m\u00e8tres de diam\u00e8tre qui fut construite au d\u00e9but des ann\u00e9es 1960.<\/p>\n<p><!--more-->Install\u00e9 dans une r\u00e9gion peu peupl\u00e9e, FAST ne sera pas g\u00ean\u00e9 par des \u00e9missions radio parasites.\u00a0L&#8217;instrument chinois sera constitu\u00e9 d&#8217;un assemblage de 4450 panneaux triangulaires de 11 m\u00e8tres de c\u00f4t\u00e9 port\u00e9s par une immense structure m\u00e9tallique d\u00e9j\u00e0 en place (image ci-dessus). Les signaux radio collect\u00e9s par cette &#8220;oreille&#8221; g\u00e9ante seront ensuite concentr\u00e9s vers un r\u00e9cepteur suspendu au centre de la structure comme \u00e0 Arecibo.<\/p>\n<p>Selon\u00a0Wu Xiangping, pr\u00e9sident de la <em><a href=\"http:\/\/english.astronomy.pmo.cas.cn\/\" target=\"_blank\">Chinese Astronomical Society<\/a>,<\/em> la sensibilit\u00e9 de ce radiot\u00e9lescope devrait permettre de\u00a0partir \u00e0 la recherche d&#8217;une vie intelligente en dehors de la <a 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> et d&#8217;explorer les origines de l&#8217;Univers.<\/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>La Chine a commenc\u00e9 l&#8217;assemblage d&#8217;un radiot\u00e9lescope g\u00e9ant de 500 m\u00e8tres de diam\u00e8tre dans les montagnes de la\u00a0province du Guizhou. Situ\u00e9e dans le sud-ouest de la Chine, la\u00a0province du Guizhou est une r\u00e9gion montagneuse difficile d&#8217;acc\u00e8s. C&#8217;est dans une cuvette naturelle entour\u00e9e par trois collines qu&#8217;a d\u00e9marr\u00e9 la construction d&#8217;une antenne sph\u00e9rique de 500 m\u00e8tres &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/07\/28\/le-plus-grand-radiotelescope-du-monde-sera-chinois\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Le plus grand radiot\u00e9lescope du monde sera chinois<\/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":3281,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[509],"tags":[1182,1180,1181,769],"class_list":["post-3279","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-arecibo","tag-chine","tag-fast","tag-radiotelescope"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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