{"id":115008,"date":"2014-12-04T10:56:07","date_gmt":"2014-12-04T10:56:07","guid":{"rendered":"https:\/\/bm.dev.synology.me\/?p=115008"},"modified":"2014-12-04T10:56:07","modified_gmt":"2014-12-04T10:56:07","slug":"prima-harta-care-prezinta-campul-magnetic-al-caii-lactee-alcatuita-de-esa-foto","status":"publish","type":"post","link":"https:\/\/bm.dev.synology.me\/?p=115008","title":{"rendered":"Prima HART\u0102 care prezint\u0103 c\u00e2mpul magnetic al C\u0103ii Lactee, alc\u0103tuit\u0103 de ESA &#8211; FOTO"},"content":{"rendered":"<p>\nAceste imagini, care, potrivit cercet\u0103torilor de la ESA, ar putea s\u0103 rivalizeze cu unele dintre tablourile spectaculoase pictate de Vincent van Gogh, sunt primele din lume care dezv\u0103luie forma c\u00e2mpului magnetic care \u00eenconjoar\u0103 galaxia noastr\u0103, informeaz\u0103 <a href=\"http:\/\/dailymail.co.uk\" target=\"_blank\">dailymail.co.uk<\/a>.<\/p>\n<p>\nOamenii de \u015ftiin\u0163\u0103 sper\u0103 c\u0103 noua hart\u0103 ar putea s\u0103 \u00eei ajute s\u0103 \u00een\u0163eleag\u0103 mai bine felul \u00een care ar\u0103ta Universul la scurt timp dup\u0103 Big Bang.<\/p>\n<p>\nPentru a crea aceste imagini spectaculoase, telescopul spa\u0163ial Planck a monitorizat cerul timp de peste 1.500 de zile, urm\u0103rind direc\u0163iile \u00een care se \u00eendreptau razele luminoase din Calea Lactee.<\/p>\n<p style=\"text-align: center;\">\n<img decoding=\"async\" alt=\"\" src=\"http:\/\/storage0.dms.mpinteractiv.ro\/media\/401\/341\/5531\/13700243\/2\/calea-lactee-esa.jpg?height=586&#038;width=600\" style=\"width: 600px; height: 586px; margin: 2px;\" \/><\/p>\n<p>\nDe\u015fi oamenii de \u015ftiin\u0163\u0103 nu pot s\u0103 vad\u0103 c\u00e2mpurile magnetice \u00een mod direct, ei pot s\u0103 &#8220;vizualizeze&#8221; felul \u00een care acestea modific\u0103 razele luminoase reflectate de micile particule de praf cosmic aflate \u00een galaxie.<\/p>\n<p>\nUnele dintre acestea, prin fenomenul denumit &#8220;polarizare&#8221;, con\u0163in numeroase informa\u0163ii despre traiectoriile razelor luminoase, iar aceste informa\u0163ii pot fi interpretate de astronomi.<\/p>\n<p>\nDe obicei, aceste c\u00e2mpuri pot s\u0103 vibreze \u00een toate direc\u0163iile. Totu\u015fi, dac\u0103 ele vibreaz\u0103 doar \u00een anumite direc\u0163ii, astronomii spun c\u0103 lumina este &#8220;polarizat\u0103&#8221;.<\/p>\n<p>\nPrin m\u0103surarea polariz\u0103rii unei raze luminoase, astronomii pot s\u0103 studieze procesele fizice care produc polarizarea, inclusiv magnetismul.<\/p>\n<p>\nDac\u0103 particulele de praf nu sunt simetrice, cea mai mare parte din acea lumin\u0103 vibreaz\u0103 \u00een paralel cu cea mai lung\u0103 dintre axele particulei, produc\u00e2nd o lumin\u0103 polarizat\u0103.<\/p>\n<p>\nDac\u0103 orient\u0103rile \u00eentregului nor de praf cosmic sunt aleatorii, nicio polarizare net\u0103 nu va fi detectat\u0103.<\/p>\n<p>\nChiar dac\u0103 acele particule infime de praf cosmic sunt foarte reci, ele emit totu\u015fi lumin\u0103, dar pe lungimi de und\u0103 extreme &#8211; dincolo de microundele \u00een infraro\u015fu de la cap\u0103tul spectrului.<\/p>\n<p>\nParticulele de praf cosmic se \u00eenv\u00e2rt aproape \u00eentotdeauna cu viteze mari, de c\u00e2teva zeci de milioane de ori pe secund\u0103, \u00een urma coliziunii lor cu fotonii \u015fi atomii care c\u0103l\u0103toresc cu viteze mari prin spa\u0163iu.<\/p>\n<p>\nApoi, \u00eentruc\u00e2t norii interstelari din Calea Lactee sunt p\u0103trun\u015fi de c\u00e2mpurile magnetice, particulele de praf care se \u00eenv\u00e2rt \u00een jurul propriilor axe se aliniaz\u0103 \u00een direc\u0163ia c\u00e2mpului magnetic respectiv.<\/p>\n<p style=\"text-align: center;\">\n<img decoding=\"async\" alt=\"\" src=\"http:\/\/storage0.dms.mpinteractiv.ro\/media\/401\/341\/5531\/13700243\/3\/calea-lactee-esa-3.jpg?height=300&#038;width=600\" style=\"width: 600px; height: 300px; margin: 2px;\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Prima hart\u0103 care prezint\u0103 c\u00e2mpul magnetic al C\u0103ii Lactee \u00eentr-o serie de imagini &#8220;hipnotice&#8221; a fost alc\u0103tuit\u0103 de oamenii de \u015ftiin\u0163\u0103 de la Agen\u0163ia Spa\u0163ial\u0103 European\u0103 (ESA).<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[510],"tags":[38908,38864,15026],"class_list":["post-115008","post","type-post","status-publish","format-standard","hentry","category-actualitate","tag-camp-magnetic","tag-esa","tag-harta"],"_links":{"self":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/115008","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=115008"}],"version-history":[{"count":0,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/115008\/revisions"}],"wp:attachment":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=115008"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=115008"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=115008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}