{"id":15231,"date":"2022-01-18T18:02:44","date_gmt":"2022-01-18T18:02:44","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=15231"},"modified":"2022-01-18T18:02:44","modified_gmt":"2022-01-18T18:02:44","slug":"gravitational-waves-the-hunt-and-the-disappointment","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/hu\/science\/astronomy-and-astrophysics\/gravitational-waves-the-hunt-and-the-disappointment\/","title":{"rendered":"Gravit\u00e1ci\u00f3s hull\u00e1mok: A hajsza \u00e9s a csal\u00f3d\u00e1s"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Gravit\u00e1ci\u00f3s hull\u00e1mok: A hajsza \u00e9s a csal\u00f3d\u00e1s<\/h2>\n\n<h2 class=\"wp-block-heading\">Mik azok a gravit\u00e1ci\u00f3s hull\u00e1mok?<\/h2>\n\n<p>A gravit\u00e1ci\u00f3s hull\u00e1mok a t\u00e9rid\u0151 sz\u00f6vet\u00e9ben keletkez\u0151 hull\u00e1mok, melyeket hatalmas kozmikus esem\u00e9nyek okoznak, mint p\u00e9ld\u00e1ul fekete lyukak \u00fctk\u00f6z\u00e9se vagy a vil\u00e1gegyetem gyors t\u00e1gul\u00e1sa a korai szakasz\u00e1ban. Ezen hull\u00e1mok detekt\u00e1l\u00e1sa \u00e9rt\u00e9kes betekint\u00e9st adhat a gravit\u00e1ci\u00f3 alapvet\u0151 term\u00e9szet\u00e9be \u00e9s a vil\u00e1gegyetem eredet\u00e9be.<\/p>\n\n<h2 class=\"wp-block-heading\">Az \u0150srobban\u00e1s \u00e9s az infl\u00e1ci\u00f3<\/h2>\n\n<p>A vil\u00e1gegyetem eredet\u00e9nek legelterjedtebb elm\u00e9lete az \u0150srobban\u00e1s, mely szerint a vil\u00e1gegyetem egy v\u00e9gtelen\u00fcl kicsi pontk\u00e9nt kezd\u0151d\u00f6tt, ami az infl\u00e1ci\u00f3nak nevezett folyamatban gyorsan t\u00e1gult. \u00dagy gondolj\u00e1k, hogy a gravit\u00e1ci\u00f3s hull\u00e1mok ezen infl\u00e1ci\u00f3s peri\u00f3dus alatt keletkeztek.<\/p>\n\n<h2 class=\"wp-block-heading\">Kozmikus mikrohull\u00e1m\u00fa h\u00e1tt\u00e9rsug\u00e1rz\u00e1s \u00e9s B m\u00f3d\u00fa polariz\u00e1ci\u00f3<\/h2>\n\n<p>A kozmikus mikrohull\u00e1m\u00fa h\u00e1tt\u00e9rsug\u00e1rz\u00e1s (CMB) az \u0150srobban\u00e1s ut\u00e1n mind\u00f6ssze 380 000 \u00e9vvel kibocs\u00e1tott \u0151si f\u00e9ny. Egy halv\u00e1ny polariz\u00e1ci\u00f3s mint\u00e1zatot tartalmaz, mely felhaszn\u00e1lhat\u00f3 gravit\u00e1ci\u00f3s hull\u00e1mok keres\u00e9s\u00e9re. A B m\u00f3d\u00fa polariz\u00e1ci\u00f3nak nevezett polariz\u00e1ci\u00f3 k\u00fcl\u00f6nleges t\u00edpus\u00e1t felt\u00e9telez\u00e9sek szerint gravit\u00e1ci\u00f3s hull\u00e1mok okozz\u00e1k.<\/p>\n\n<h2 class=\"wp-block-heading\">BICEP2 \u00e9s Planck: A kezdeti felfedez\u00e9s \u00e9s a k\u00e9ts\u00e9gek<\/h2>\n\n<p>2014-ben a D\u00e9li-sarkon tal\u00e1lhat\u00f3 BICEP2 t\u00e1vcs\u0151 egy er\u0151s B m\u00f3d\u00fa polariz\u00e1ci\u00f3s jel \u00e9szlel\u00e9s\u00e9r\u0151l sz\u00e1molt be, melyet kezdetben az \u0151si gravit\u00e1ci\u00f3s hull\u00e1mok bizony\u00edt\u00e9kak\u00e9nt \u00fcdv\u00f6z\u00f6ltek. Azonban a tov\u00e1bbi elemz\u00e9sek agg\u00e1lyokat vetettek fel, hogy a jelet a galaxisunkban tal\u00e1lhat\u00f3 por szennyezhette.<\/p>\n\n<h2 class=\"wp-block-heading\">K\u00f6z\u00f6s elemz\u00e9s: Por vagy hull\u00e1mok?<\/h2>\n\n<p>A bizonytalans\u00e1g felold\u00e1s\u00e1ra egy k\u00f6z\u00f6s elemz\u00e9st v\u00e9geztek a BICEP2 \u00e9s a Planck \u0171rt\u00e1vcs\u0151 k\u00f6z\u00f6tt, melynek sz\u00e9lesebb a l\u00e1t\u00f3mezeje \u00e9s jobban k\u00e9pes \u00e9rz\u00e9kelni a por \u00e1ltal kibocs\u00e1tott sug\u00e1rz\u00e1st. Az elemz\u00e9s kisziv\u00e1rgott eredm\u00e9nyei most meger\u0151s\u00edtett\u00e9k, hogy a BICEP2 jelet val\u00f3ban por okozta.<\/p>\n\n<h2 class=\"wp-block-heading\">A meg\u00e1llap\u00edt\u00e1sok jelent\u0151s\u00e9ge<\/h2>\n\n<p>A k\u00f6z\u00f6s elemz\u00e9s komoly csap\u00e1st m\u00e9rt a gravit\u00e1ci\u00f3s hull\u00e1mok \u00e9szlel\u00e9s\u00e9nek kezdeti \u00e1ll\u00edt\u00e1saira. Azonban ez nem z\u00e1rja ki hat\u00e1rozottan a gravit\u00e1ci\u00f3s hull\u00e1mok l\u00e9tez\u00e9s\u00e9t. Egyszer\u0171en azt jelenti, hogy a BICEP2 jel nem volt el\u00e9g er\u0151s ahhoz, hogy meggy\u0151z\u0151 \u00e9szlel\u00e9snek lehessen tekinteni.<\/p>\n\n<h2 class=\"wp-block-heading\">A kutat\u00e1s folytat\u00f3dik<\/h2>\n\n<p>A visszaes\u00e9s ellen\u00e9re a gravit\u00e1ci\u00f3s hull\u00e1mok keres\u00e9se folytat\u00f3dik. A tud\u00f3sok t\u00f6k\u00e9letes\u00edtik m\u0171szereiket \u00e9s elemz\u00e9si technik\u00e1ikat, valamint alternat\u00edv \u00e9szlel\u00e9si m\u00f3dszereket is kutatnak. Noha a hajsza kih\u00edv\u00e1st jelent\u0151nek bizonyult, a lehets\u00e9ges jutalom hatalmas, mivel a gravit\u00e1ci\u00f3s hull\u00e1mok felfedhetik a vil\u00e1gegyetem m\u00e9ly rejt\u00e9lyeit.<\/p>\n\n<h2 class=\"wp-block-heading\">Tov\u00e1bbi hossz\u00fa kulcsszavak:<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>A gravit\u00e1ci\u00f3s hull\u00e1mok \u00e9szlel\u00e9s\u00e9nek kih\u00edv\u00e1sai<\/li>\n<li>A gravit\u00e1ci\u00f3s hull\u00e1m\u00fa csillag\u00e1szat j\u00f6v\u0151beli kil\u00e1t\u00e1sai<\/li>\n<li>A por szerepe a csillag\u00e1szati megfigyel\u00e9sekben<\/li>\n<li>A BICEP2 \u00e9s Planck eredm\u00e9nyek hat\u00e1sa a kozmol\u00f3gi\u00e1ra<\/li>\n<li>Folyamatban l\u00e9v\u0151 kutat\u00e1sok \u00e9s fejleszt\u00e9sek a gravit\u00e1ci\u00f3s hull\u00e1mok \u00e9szlel\u00e9s\u00e9ben<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Gravit\u00e1ci\u00f3s hull\u00e1mok: A hajsza \u00e9s a csal\u00f3d\u00e1s Mik azok a gravit\u00e1ci\u00f3s hull\u00e1mok? A gravit\u00e1ci\u00f3s hull\u00e1mok a t\u00e9rid\u0151 sz\u00f6vet\u00e9ben keletkez\u0151 hull\u00e1mok, melyeket hatalmas kozmikus esem\u00e9nyek okoznak, mint p\u00e9ld\u00e1ul fekete lyukak \u00fctk\u00f6z\u00e9se&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1836],"tags":[436,3132,697,613,434],"class_list":["post-15231","post","type-post","status-publish","format-standard","hentry","category-astronomy-and-astrophysics","tag-astrophysics","tag-gravitational-waves","tag-cosmology","tag-scientific-discovery","tag-space-exploration"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/15231","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/comments?post=15231"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/15231\/revisions"}],"predecessor-version":[{"id":15232,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/15231\/revisions\/15232"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/media?parent=15231"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/categories?post=15231"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/tags?post=15231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}