{"id":3790,"date":"2026-03-26T15:49:52","date_gmt":"2026-03-26T15:49:52","guid":{"rendered":"https:\/\/astrohodonin.cz\/index.php\/2026\/03\/26\/cerne-diry-a-neutronove-hvezdy-218-slouceni-a-pocet-stale-roste\/"},"modified":"2026-03-26T15:49:52","modified_gmt":"2026-03-26T15:49:52","slug":"cerne-diry-a-neutronove-hvezdy-218-slouceni-a-pocet-stale-roste","status":"publish","type":"post","link":"https:\/\/astrohodonin.cz\/index.php\/2026\/03\/26\/cerne-diry-a-neutronove-hvezdy-218-slouceni-a-pocet-stale-roste\/","title":{"rendered":"\u010cern\u00e9 d\u00edry a neutronov\u00e9 hv\u011bzdy: 218 slou\u010den\u00ed a po\u010det st\u00e1le roste"},"content":{"rendered":"<p>Jak zn\u00ed spojen\u00ed dvou \u010dern\u00fdch d\u011br ve vesm\u00edru? Zvukov\u00e9 vlny se ve vakuu ne\u0161\u00ed\u0159\u00ed, gravita\u010dn\u00ed vlny v\u0161ak ano. V roce 2015 jsme je poprv\u00e9 \u201esly\u0161eli\u201c a potvrdili tak jednu z teoretick\u00fdch p\u0159edpov\u011bd\u00ed Alberta Einsteina. Ka\u017ed\u00fd \u010dtverec na m\u0159\u00ed\u017ece na obr\u00e1zku p\u0159edstavuje jednu z detekc\u00ed gravita\u010dn\u00edch vln, kter\u00e9 dosud ozn\u00e1mila spolupr\u00e1ce LIGO-VIRGO-KAGRA. Tyto grafy ukazuj\u00ed, jak se dvojice \u010dern\u00fdch d\u011br ve sv\u00e9 ob\u011b\u017en\u00e9 dr\u00e1ze kolem sebe zrychluje sm\u011brem ke slou\u010den\u00ed: efekt stoupaj\u00edc\u00ed frekvence se naz\u00fdv\u00e1 \u201echirp\u201c. A\u010dkoli je neutronov\u00fdch hv\u011bzd v\u00fdrazn\u011b v\u00edce ne\u017e \u010dern\u00fdch d\u011br, v\u011bt\u0161ina detekc\u00ed se t\u00fdk\u00e1 slou\u010den\u00ed dvojic \u010dern\u00fdch d\u011br. D\u016fvodem je to, \u017ee \u010dern\u00e9 d\u00edry jsou t\u011b\u017e\u0161\u00ed a jejich sign\u00e1ly jsou hlasit\u011bj\u0161\u00ed a lze je pozorovat z v\u011bt\u0161\u00ed vzd\u00e1lenosti, co\u017e vede k v\u011bt\u0161\u00edmu po\u010dtu detekc\u00ed. Tyto ud\u00e1losti jsou vz\u00e1cn\u00e9 a neo\u010dek\u00e1v\u00e1me, \u017ee bychom v dohledn\u00e9 dob\u011b n\u011bjakou vid\u011bli v na\u0161\u00ed Galaxii. V kosmu se v\u0161ak odehr\u00e1vaj\u00ed neust\u00e1le.<\/p>\n<p><!-- astropress --><\/p>\n<p>**Credit**: NASA<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jak zn\u00ed spojen\u00ed dvou \u010dern\u00fdch d\u011br ve vesm\u00edru? Zvukov\u00e9 vlny se ve vakuu ne\u0161\u00ed\u0159\u00ed, gravita\u010dn\u00ed vlny v\u0161ak ano. V roce 2015 jsme je poprv\u00e9 \u201esly\u0161eli\u201c a potvrdili tak jednu z [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3791,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3790","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nasa"],"_links":{"self":[{"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/posts\/3790","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/comments?post=3790"}],"version-history":[{"count":0,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/posts\/3790\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/media\/3791"}],"wp:attachment":[{"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/media?parent=3790"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/categories?post=3790"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/tags?post=3790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}