\nAstronomii care folosesc Telescopul Spa\u0163ial James Webb (JWST) au descoperit o \u201ecre\u015f\u0103\u201d stelar\u0103 enigmatic\u0103 \u00een apropierea centrului C\u0103ii Lactee, scrie Daily Galaxy.<\/p>\n
\nDescoperirea pune sub semnul \u00eentreb\u0103rii teoriile cunoscute privind eficien\u0163a form\u0103rii stelelor \u00een medii galactice extreme.<\/p>\n
\nRegiunea, cunoscut\u0103 sub numele de Sagittarius B2, se afl\u0103 la aproximativ 26.000 de ani-lumin\u0103 de P\u0103m\u00e2nt, aproape de centrul galaxiei.<\/p>\n
\nDe\u015fi con\u0163ine doar circa zece la sut\u0103 din gazul molecular din zon\u0103, produce aproape jum\u0103tate din stelele care se formeaz\u0103 acolo.<\/p>\n
Oamenii de \u015ftiin\u0163\u0103 spun c\u0103 un asemenea nivel de eficien\u0163\u0103 contrazice modelele actuale de formare a stelelor.<\/p>\n
\nCu ajutorul instrumentelor \u00een infraro\u015fu ale lui Webb, cercet\u0103torii au observat nori den\u015fi de gaz \u015fi praf care str\u0103lucesc \u00een nuan\u0163e intense de ro\u015fu \u015fi violet.<\/p>\n
Unele regiuni r\u0103m\u00e2n complet opace, suger\u00e2nd existen\u0163a unor protostele ad\u00e2nc \u00eengropate, ascunse privirii.<\/p>\n
\nDatele din infraro\u015fu mediu au scos la iveal\u0103 zone cu o complexitate chimic\u0103 excep\u0163ional\u0103 \u00een interiorul norului.<\/p>\n
\nAceste regiuni con\u0163in molecule rareori \u00eent\u00e2lnite \u00eempreun\u0103 \u00een alte p\u0103r\u0163i ale galaxiei.<\/p>\n
\nCercet\u0103torii cred c\u0103 turbulen\u0163ele, c\u00e2mpurile magnetice \u015fi diferen\u0163ele de temperatur\u0103 ar putea accelera colapsul gravita\u0163ional.<\/p>\n
\nTotu\u015fi, nicio teorie singular\u0103 nu explic\u0103 pe deplin productivitatea extraordinar\u0103 a regiunii.<\/p>\n
\nRadia\u0163ia intens\u0103 \u015fi gravita\u0163ia puternic\u0103 din centrul galactic complic\u0103 \u015fi mai mult modelarea acestui mediu.<\/p>\n
Oamenii de \u015ftiin\u0163\u0103 de la NASA afirm\u0103 c\u0103 \u00een\u0163elegerea regiunii Sagittarius B2 ar putea remodela teoriile despre evolu\u0163ia galaxiilor.<\/p>\n
\nDac\u0103 astfel de \u201efabrici\u201d stelare extrem de eficiente sunt comune \u00een apropierea nucleelor galactice, modelele actuale ar putea necesita revizuiri.<\/p>\n
\nObserva\u0163iile \u00een infraro\u015fu stratificate ale telescopului spa\u0163ial James Webb permit cartografierea simultan\u0103 a temperaturii, densit\u0103\u0163ii \u015fi compozi\u0163iei chimice.<\/p>\n
\nDatele sugereaz\u0103 c\u0103 mai multe genera\u0163ii de stele se pot forma simultan \u00een acela\u015fi nor.<\/p>\n
\nStudiile viitoare vor stabili dac\u0103 Sagittarius B2 este un caz izolat sau parte a unui tipar cosmic mai larg.<\/p>\n
\n <\/p>\n
\n <\/p>\n
\n <\/p>\n","protected":false},"excerpt":{"rendered":"
James Webb dezv\u0103luie Sagittarius B2, o regiune misterioas\u0103 de formare a stelelor, cu o eficien\u0163\u0103 nea\u015fteptat\u0103, aproape de centrul C\u0103ii Lactee.<\/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":[62245,53730],"class_list":["post-243691","post","type-post","status-publish","format-standard","hentry","category-actualitate","tag-anomalie","tag-james-webb"],"_links":{"self":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/243691","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=243691"}],"version-history":[{"count":0,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/243691\/revisions"}],"wp:attachment":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=243691"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=243691"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=243691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}