Na najudaljenijem rubu na\u0161eg Sun\u010devog sistema nalazi se barijera vru\u0107e plazme, odnosno ogromni vatreni zid sun\u010devih zraka koji defini\u0161e ivicu me\u0111uzvjezdanog prostora.<\/p>\n
Kada je svemirska letjelica Vojad\u017eer 2 krajem 2018. godine po\u010dela putovanje u me\u0111uzvezdani prostor, zabilje\u017eila je na tom podru\u010dju temperature od 49.427 stepeni Celzijusa, pi\u0161e Futurism, prenosi index.hr.<\/p>\n
“Lokalni me\u0111uzvjezdani medij, barijera vru\u0107e plazme, promjenjiv je u blizini heliopauze i topliji nego \u0161to se o\u010dekivalo”, pi\u0161e u studiji naziva Voyager 2 plasma observations of the heliopause and interstellar medium koja je objavljena u nau\u010dnom \u010dasopisu Nature Astronomy.<\/p>\n
U studiji tako\u0111e pi\u0161e da su posmatranja Vojad\u017eera 2 pokazala da je temperatura u toj regiji 30.000 \u2013 50.000 K, dok modeli i opa\u017eanja predvi\u0111aju temperature od 15.000 do 30.000 K.<\/p>\n
Nau\u010dnicima za sada nije jasno kako \u0107e ovaj zid vru\u0107e plazme uticati na budu\u0107a me\u0111uzvjezdana putovanja. Naime, iako je plazma izuzetno vru\u0107a, nije gusta (mali broj \u010destica) pa je Voyad\u017eer 2 pro\u0161ao kroz nju bez ikakvih problema. Me\u0111utim, stru\u010dnjake brine kako bi ta vru\u0107a barijera mogla da uti\u010de na ljude.<\/p>\n
Nau\u010dnici se trenutno bave analiziranjem sloja plazme koji stvaraju i odr\u017eavaju solarni vjetrovi koji duvaju sa Sunca i formiraju orgomni balon plazme koji okru\u017euje Sun\u010dev sistem, pokazalo je istra\u017eivanje objavljeno ovog mjeseca u Nature Astronomy.<\/p>\n
Prema NASA institutu Jet Propulsion Laboratory, novo istra\u017eivanje sugeri\u0161e da Voyad\u017eer 2 mo\u017eda ipak nije pre\u0161ao u me\u0111uzvjezdani prostor, ve\u0107 se zaglavio u \u0161irokom prelaznom podru\u010dju koje se sastoji od nevjerovatno vru\u0107e i kompaktne plazme.<\/p>\n","protected":false},"excerpt":{"rendered":"
Temperatura u toj regiji 30.000 \u2013 50.000 K, dok modeli i opa\u017eanja predvi\u0111aju temperature od 15.000 do 30.000 K<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false,"footnotes":""},"categories":[14,12],"tags":[],"class_list":["post-279064","post","type-post","status-publish","format-standard","hentry","category-vijesti","category-prica-dana"],"_links":{"self":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/279064","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/comments?post=279064"}],"version-history":[{"count":1,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/279064\/revisions"}],"predecessor-version":[{"id":279066,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/279064\/revisions\/279066"}],"wp:attachment":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/media?parent=279064"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/categories?post=279064"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/tags?post=279064"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}