{"id":14452,"date":"2023-10-15T12:16:49","date_gmt":"2023-10-15T12:16:49","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=14452"},"modified":"2023-10-15T12:16:49","modified_gmt":"2023-10-15T12:16:49","slug":"dark-nebulae-cosmic-birthplaces-hidden-in-the-night-sky","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/ro\/science\/astrophysics\/dark-nebulae-cosmic-birthplaces-hidden-in-the-night-sky\/","title":{"rendered":"Nebuloase \u00eentunecate: leag\u0103nele cosmice care ascund cerul nop\u021bii"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Nebuloasele \u00eentunecate: leag\u0103ne cosmice ascunse \u00een cerul nop\u021bii<\/h2>\n\n<h2 class=\"wp-block-heading\">Ce sunt nebuloasele \u00eentunecate?<\/h2>\n\n<p>Nebuloasele \u00eentunecate sunt nori cosmici enigmatici, compu\u0219i din gaz dens \u0219i praf care absorb \u0219i \u00eempr\u0103\u0219tie lumina, f\u0103c\u00e2ndu-le s\u0103 apar\u0103 ca ni\u0219te pete \u00eentunecate pe fundalul cerului \u00eenstelat. \u00cen ciuda aspectului lor sinistru, aceste regiuni sunt de fapt pepiniere stelare vibrante, unde se nasc stele noi.<\/p>\n\n<h2 class=\"wp-block-heading\">Lupus 3: o pepinier\u0103 stelar\u0103 aproape de cas\u0103<\/h2>\n\n<p>La doar 600 de ani lumin\u0103 de P\u0103m\u00e2nt, \u00een constela\u021bia Scorpionul, se afl\u0103 Lupus 3, una dintre cele mai apropiate pepiniere stelare de planeta noastr\u0103. Aceast\u0103 nebuloas\u0103 \u00eentunecat\u0103 este o \u021bint\u0103 principal\u0103 pentru astronomii care studiaz\u0103 na\u0219terea \u0219i evolu\u021bia stelelor.<\/p>\n\n<h2 class=\"wp-block-heading\">Observarea lui Lupus 3<\/h2>\n\n<p>Cele mai detaliate imagini ale lui Lupus 3 de p\u00e2n\u0103 acum au fost capturate de Very Large Telescope (VLT) \u0219i telescopul MPG\/ESO de 2,2 metri, operate de Observatorul European de Sud din Chile. Aceste telescoape permit astronomilor s\u0103 priveasc\u0103 ad\u00e2nc \u00een inima nebuloasei \u0219i s\u0103 fie martorii form\u0103rii de noi stele.<\/p>\n\n<h2 class=\"wp-block-heading\">Formarea stelelor \u00een nebuloasele \u00eentunecate<\/h2>\n\n<p>Nebuloasele \u00eentunecate sunt compuse din nori imen\u0219i de gaz \u0219i praf care se pr\u0103bu\u0219esc sub propria lor gravita\u021bie, form\u00e2nd nuclee dense. \u00cen interiorul acestor nuclee, temperatura \u0219i presiunea cresc p\u00e2n\u0103 c\u00e2nd se aprinde fuziunea nuclear\u0103, d\u00e2nd na\u0219tere unor stele noi. Pe m\u0103sur\u0103 ce aceste stele cresc, ele emit radia\u021bii \u0219i v\u00e2nturi puternice care \u00eendep\u0103rteaz\u0103 gazul \u0219i praful din jur, dezv\u0103luindu-\u0219i str\u0103lucirea str\u0103lucitoare.<\/p>\n\n<h2 class=\"wp-block-heading\">Rolul nebuloaselor \u00eentunecate<\/h2>\n\n<p>Astronomii studiaz\u0103 nebuloasele \u00eentunecate pentru a ob\u021bine informa\u021bii despre na\u0219terea stelelor, inclusiv a propriului nostru Soare. \u00cen\u021beleg\u00e2nd procesele care au loc \u00een aceste pepiniere cosmice, oamenii de \u0219tiin\u021b\u0103 pot reconstitui puzzle-ul modului \u00een care se formeaz\u0103 stelele \u0219i sistemele planetare.<\/p>\n\n<h2 class=\"wp-block-heading\">Nebuloase \u00eentunecate celebre<\/h2>\n\n<p>Lupus 3 nu este singura nebuloas\u0103 \u00eentunecat\u0103 de pe cerul nop\u021bii. Alte exemple binecunoscute includ:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Nebuloasa Sacul de C\u0103rbune:<\/strong> o nebuloas\u0103 \u00eentunecat\u0103 mare, l\u00e2ng\u0103 Crucea Sudului<\/li>\n<li><strong>Marea Fisur\u0103:<\/strong> o nebuloas\u0103 \u00eentunecat\u0103 vast\u0103, \u00een form\u0103 de \u0219arpe, care se \u00eentinde pe Calea Lactee<\/li>\n<li><strong>Nebuloasa Cap de Cal:<\/strong> o nebuloas\u0103 \u00eentunecat\u0103 \u00een form\u0103 de cap de cal, vizibil\u0103 \u00een constela\u021bia Orion<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Descoperirea lui E.E. Barnard<\/h2>\n\n<p>Descoperirea nebuloaselor \u00eentunecate este atribuit\u0103 lui E.E. Barnard, care a fotografiat aproape 200 dintre ace\u0219ti nori cosmici la \u00eenceputul anilor 1900. Observa\u021biile sale au dezv\u0103luit c\u0103 nebuloasele \u00eentunecate nu sunt goluri goale, ci concentra\u021bii dense de gaz \u0219i praf.<\/p>\n\n<h2 class=\"wp-block-heading\">Nebuloasele \u00eentunecate ca mistere cosmice<\/h2>\n\n<p>Nebuloasele \u00eentunecate r\u0103m\u00e2n obiecte enigmatice, care p\u0103streaz\u0103 secrete despre formarea \u0219i evolu\u021bia stelelor. Continu\u00e2nd s\u0103 studieze aceste leag\u0103ne cosmice, astronomii sper\u0103 s\u0103 dezlege misterele care \u00eenconjoar\u0103 na\u0219terea de noi stele \u0219i originile universului nostru.<\/p>","protected":false},"excerpt":{"rendered":"<p>Nebuloasele \u00eentunecate: leag\u0103ne cosmice ascunse \u00een cerul nop\u021bii Ce sunt nebuloasele \u00eentunecate? Nebuloasele \u00eentunecate sunt nori cosmici enigmatici, compu\u0219i din gaz dens \u0219i praf care absorb \u0219i \u00eempr\u0103\u0219tie lumina, f\u0103c\u00e2ndu-le&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[958],"tags":[435,434,15608,19390],"class_list":["post-14452","post","type-post","status-publish","format-standard","hentry","category-astrophysics","tag-astronomy","tag-space-exploration","tag-star-formation","tag-dark-nebulae"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts\/14452","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\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/comments?post=14452"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts\/14452\/revisions"}],"predecessor-version":[{"id":14453,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/posts\/14452\/revisions\/14453"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/media?parent=14452"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/categories?post=14452"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/ro\/wp-json\/wp\/v2\/tags?post=14452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}