Telescopul spa\u021bial James Webb (JWST), o minune astronomic\u0103 revolu\u021bionar\u0103, a surprins primele sale imagini uluitoare cu lumina stelar\u0103. Dup\u0103 ce \u0219i-a desf\u0103\u0219urat cu succes cele 18 oglinzi aurii, telescopul \u0219i-a deschis \u201eochii\u201d c\u0103tre cosmos.<\/p>\n\n
Primele imagini surprinse de JWST sunt departe de \u201evederile f\u0103r\u0103 precedent ale universului\u201d pe care promite s\u0103 le ofere odat\u0103 ce va fi pe deplin opera\u021bional. Pentru moment, fiecare dintre oglinzile telescopului ac\u021bioneaz\u0103 ca un telescop individual, rezult\u00e2nd \u00een 18 imagini neclare ale aceleia\u0219i stele, HD-84406, situat\u0103 la 260 de ani lumin\u0103 distan\u021b\u0103.<\/p>\n\n
Imaginile neclare au fost combinate pentru a crea un mozaic masiv cu peste dou\u0103 miliarde de pixeli, demonstr\u00e2nd capacit\u0103\u021bile camerei cu infraro\u0219u apropiat (NIRcam) a JWST. NIRcam opereaz\u0103 la temperaturi mai ridicate, permi\u021b\u00e2ndu-i s\u0103 func\u021bioneze \u00eenainte ca telescopul s\u0103 se r\u0103ceasc\u0103 complet la temperaturile sale criogenice de func\u021bionare.<\/p>\n\n
Astronomii sunt acum angaja\u021bi \u00een sarcina delicat\u0103 de a alinia oglinzile telescopului. \u00cen urm\u0103toarele c\u00e2teva luni, vor regla cu meticulozitate fiecare oglind\u0103 p\u00e2n\u0103 c\u00e2nd cele 18 imagini neclare se vor contopi \u00eentr-o singur\u0103 stea focalizat\u0103.<\/p>\n\n
HD-84406 a fost aleas\u0103 cu grij\u0103 ca stea \u021bint\u0103 pentru primele observa\u021bii ale JWST datorit\u0103 naturii sale u\u0219or de identificat \u0219i absen\u021bei stelelor din apropiere care ar putea crea confuzie.<\/p>\n\n
NIRcam joac\u0103 un rol crucial \u00een observa\u021biile timpurii ale JWST. Detecteaz\u0103 lumina infraro\u0219ie, care se \u00eenregistreaz\u0103 ca \u0219i c\u0103ldur\u0103, permi\u021b\u00e2nd telescopului s\u0103 func\u021bioneze \u00eenainte de a ajunge la temperaturile sale optime de r\u0103cire.<\/p>\n\n
Pe l\u00e2ng\u0103 capturarea imaginilor cu lumina stelar\u0103, JWST a f\u0103cut \u0219i un selfie cosmic epic folosind o lentil\u0103 de imagistic\u0103 specializat\u0103. Selfie-ul dezv\u0103luie c\u0103 una dintre oglinzile telescopului str\u0103luce\u0219te mai puternic dec\u00e2t celelalte, indic\u00e2nd alinierea sa cu HD-84406.<\/p>\n\n
Procesul de aliniere a oglinzilor JWST este un efort complex \u0219i care consum\u0103 mult timp. Cu toate acestea, odat\u0103 finalizat, telescopul \u00ee\u0219i va \u00eencepe misiunea de a explora cele mai \u00eendep\u0103rtate zone ale universului, dezleg\u00e2nd misterele cosmosului \u0219i extinz\u00e2ndu-ne \u00een\u021belegerea despre locul nostru \u00een cadrul acestuia.<\/p>\n\n
Telescopul spa\u021bial James Webb este o dovad\u0103 a ingeniozit\u0103\u021bii umane \u0219i a c\u0103ut\u0103rii noastre ne\u00eencetate de cunoa\u0219tere. Primele sale imagini, de\u0219i neclare, marcheaz\u0103 un reper semnificativ \u00een avansarea astronomiei \u0219i a explor\u0103rii spa\u021biale. Pe m\u0103sur\u0103 ce oglinzile telescopului se aliniaz\u0103 \u0219i \u00ee\u0219i dau seama de \u00eentregul s\u0103u poten\u021bial, putem anticipa cu ner\u0103bdare descoperirile inovatoare care ne stau \u00een fa\u021b\u0103.<\/p>","protected":false},"excerpt":{"rendered":"
Telescopul spa\u021bial James Webb dezv\u0103luie primul s\u0103u spectacol stelar Prima privire asupra luminii stelare Telescopul spa\u021bial James Webb (JWST), o minune astronomic\u0103 revolu\u021bionar\u0103, a surprins primele sale imagini uluitoare cu…<\/p>\n","protected":false},"author":1,"featured_media":24752,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1836],"tags":[436,435,8401,434,8400,8402,8399,8403,8404,4211],"class_list":["post-4645","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astronomy-and-astrophysics","tag-astrophysics","tag-astronomy","tag-cosmic-spectacle","tag-space-exploration","tag-first-star-image","tag-infrared-astronomy","tag-jwst","tag-nircam","tag-space-telescope","tag-james-webb-space-telescope"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts\/4645","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/comments?post=4645"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts\/4645\/revisions"}],"predecessor-version":[{"id":24753,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts\/4645\/revisions\/24753"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/media\/24752"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/media?parent=4645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/categories?post=4645"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/tags?post=4645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}