KODA\u0147 – Fyzici tvrdia, \u017ee objavili anom\u00e1lie, ktor\u00e9 m\u00f4\u017eu otrias\u0165 jednou zo z\u00e1kladn\u00fdch te\u00f3ri\u00ed modernej kozmol\u00f3gie. Ak sa v\u00fdsledky potvrdia, na\u0161e ch\u00e1panie vesm\u00edru sa m\u00f4\u017ee v\u00fdrazne zmeni\u0165.<\/p>\n
\t\t\t\tStoro\u010dn\u00e1 predstava o vesm\u00edre dostala trhliny<\/p>\n
Skupina vedcov pri sk\u00faman\u00ed vzdialen\u00fdch galaxi\u00ed a exploduj\u00facich hviezd zaznamenala javy, ktor\u00e9 nezapadaj\u00fa do doteraz uzn\u00e1van\u00e9ho modelu fungovania vesm\u00edru. V\u00fdskum pod\u013ea nich nazna\u010duje, \u017ee realita m\u00f4\u017ee by\u0165 ove\u013ea komplikovanej\u0161ia, ne\u017e predpoklad\u00e1 \u0161tandardn\u00e1 kozmol\u00f3gia.<\/p>\n
Ako uv\u00e1dza Live Science, fyzici vytvorili nov\u00e9 diagnostick\u00e9 testy, pomocou ktor\u00fdch analyzovali spr\u00e1vanie vesm\u00edru vo ve\u013ek\u00fdch mierkach. V\u00fdsledky ich prekvapili.<\/p>\n
Doteraj\u0161\u00ed model toti\u017e vych\u00e1dza z predpokladu, \u017ee vesm\u00edr je na najv\u00e4\u010d\u0161\u00edch \u0161k\u00e1lach homog\u00e9nny a spr\u00e1va sa v\u0161ade pribli\u017ene rovnako.<\/p>\n
Vedci spochybnili zn\u00e1mu te\u00f3riu FLRW<\/p>\n
Jadrom sporu je takzvan\u00fd model Friedmanna-Lema\u00eetra-Robertsona-Walkera, zn\u00e1my pod skratkou FLRW. Ide o takmer sto rokov star\u00fd matematick\u00fd r\u00e1mec zalo\u017een\u00fd na Einsteinovej v\u0161eobecnej te\u00f3rii relativity.<\/p>\n
Model predpoklad\u00e1, \u017ee vesm\u00edr sa rozp\u00edna alebo zmr\u0161\u0165uje rovnomerne a \u017ee jeho zakrivenie je v z\u00e1sade v\u0161ade rovnak\u00e9.<\/p>\n
Pr\u00e1ve tento predpoklad v\u0161ak nov\u00e9 pozorovania za\u010d\u00ednaj\u00fa spochyb\u0148ova\u0165.<\/p>\n
Spoluautor \u0161t\u00fadie Asta Heinesen z In\u0161tit\u00fatu Nielsa Bohra v Kodani a lond\u00fdnskej Queen Mary University uviedol, \u017ee vedci zaznamenali \u201eprekvapiv\u00e9 poru\u0161enie testu konzistencie zakrivenia FLRW\u201c.<\/p>\n
Pod\u013ea neho to m\u00f4\u017ee nazna\u010dova\u0165 existenciu novej fyziky mimo s\u00fa\u010dasn\u00e9ho \u0161tandardn\u00e9ho modelu kozmol\u00f3gie.<\/p>\n
Svetlo sa m\u00f4\u017ee vo vesm\u00edre spr\u00e1va\u0165 inak<\/p>\n
Vedci predstavili v\u00fdsledky v troch odborn\u00fdch pr\u00e1cach, v ktor\u00fdch navrhli nov\u00e9 sp\u00f4soby sk\u00famania vesm\u00edru.<\/p>\n
Jedn\u00fdm z mo\u017en\u00fdch vysvetlen\u00ed pozorovan\u00fdch odch\u00fdlok je takzvan\u00fd Dyerov-Roederov efekt. Ten predpoklad\u00e1, \u017ee svetlo zo vzdialen\u00fdch objektov \u010dasto prech\u00e1dza najm\u00e4 pr\u00e1zdnymi oblas\u0165ami vesm\u00edru namiesto regi\u00f3nov pln\u00fdch hmoty.<\/p>\n
Ak je t\u00e1to hypot\u00e9za spr\u00e1vna, mohlo by to znamena\u0165, \u017ee vesm\u00edr sa n\u00e1m jav\u00ed pr\u00e1zdnej\u0161\u00ed, ne\u017e v skuto\u010dnosti je.<\/p>\n
Probl\u00e9m m\u00f4\u017ee sp\u00f4sobova\u0165 aj samotn\u00e1 \u0161trukt\u00fara vesm\u00edru<\/p>\n
Druh\u00e9 mo\u017en\u00e9 vysvetlenie s\u00favis\u00ed s javom ozna\u010dovan\u00fdm ako kozmologick\u00e1 sp\u00e4tn\u00e1 reakcia. Pod\u013ea tejto te\u00f3rie m\u00f4\u017ee rast obrovsk\u00fdch \u0161trukt\u00far vo vesm\u00edre \u2013 napr\u00edklad galaktick\u00fdch zhlukov alebo rozsiahlych pr\u00e1zdnych oblast\u00ed \u2013 ovplyv\u0148ova\u0165 samotn\u00e9 rozp\u00ednanie priestoru.<\/p>\n
Heinesen tvrd\u00ed, \u017ee pr\u00e1ve schopnos\u0165 priamo mera\u0165 tieto efekty predstavuje najv\u00e4\u010d\u0161\u00ed prelom celej pr\u00e1ce.<\/p>\n
\u201ePrv\u00fdkr\u00e1t dok\u00e1\u017eeme tieto javy priamo odl\u00ed\u0161i\u0165 od in\u00fdch \u00faprav \u0161tandardn\u00e9ho kozmologick\u00e9ho modelu, napr\u00edklad od te\u00f3ri\u00ed meniacej sa temnej energie alebo modifikovanej gravit\u00e1cie,\u201c vysvetlil fyzik.<\/p>\n
Pod\u013ea neho podobne presn\u00fd pr\u00edstup doteraz neexistoval.<\/p>\n","protected":false},"excerpt":{"rendered":"KODA\u0147 – Fyzici tvrdia, \u017ee objavili anom\u00e1lie, ktor\u00e9 m\u00f4\u017eu otrias\u0165 jednou zo z\u00e1kladn\u00fdch te\u00f3ri\u00ed modernej kozmol\u00f3gie. Ak sa…\n","protected":false},"author":2,"featured_media":75826,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[8],"tags":[28332,33,22537,43,40,42,36,5342,50,5343,2176,49,48],"class_list":["post-75825","post","type-post","status-publish","format-standard","has-post-thumbnail","category-svet","tag-anomalie","tag-news","tag-prevrat","tag-sk","tag-slovak","tag-slovencina","tag-spravy","tag-studia","tag-svet","tag-vedci","tag-vesmir","tag-world","tag-world-news"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@sk\/116611512142697534","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts\/75825","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/comments?post=75825"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts\/75825\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/media\/75826"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/media?parent=75825"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/categories?post=75825"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/tags?post=75825"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}