{"id":61129,"date":"2026-10-10T14:35:27","date_gmt":"2026-10-10T14:35:27","guid":{"rendered":"https:\/\/cp.snarskis.lt\/index.php\/2026\/10\/10\/mokslininkai-perspeja-saules-sistema-gali-subyreti-100-kartu-greiciau-nei-manyta\/"},"modified":"2026-10-10T14:35:27","modified_gmt":"2026-10-10T14:35:27","slug":"mokslininkai-perspeja-saules-sistema-gali-subyreti-100-kartu-greiciau-nei-manyta","status":"publish","type":"post","link":"https:\/\/cp.snarskis.lt\/index.php\/2026\/10\/10\/mokslininkai-perspeja-saules-sistema-gali-subyreti-100-kartu-greiciau-nei-manyta\/","title":{"rendered":"Mokslininkai persp\u0117ja: Saul\u0117s sistema gali subyr\u0117ti 100 kart\u0173 grei\u010diau nei manyta"},"content":{"rendered":"

Iki \u0161iol manyta, kad i\u0161orin\u0117s Saul\u0117s sistemos planetos, tokios kaip Uranas ir Nept\u016bnas, gali i\u0161likti stabilios ne\u012fsivaizduojamai ilgai, net jei Saul\u0117 po keli\u0173 milijard\u0173 met\u0173 virs balt\u0105ja nyk\u0161tuke. Ta\u010diau naujas modeliavimu ir steb\u0117jim\u0173 analize paremtas tyrimas rodo gerokai ni\u016bresn\u012f scenarij\u0173.<\/p>\n

Astrofizikai teigia, kad Saul\u0117s mas\u0117s netekimas senstant gali b\u016bti ne tolygus ir ramus, o labiau chaoti\u0161kas. Vietoje vieno sklandaus proceso mas\u0117 gal\u0117t\u0173 b\u016bti i\u0161metama daugybe atskir\u0173, atsitiktini\u0173 pli\u016bpsni\u0173, kurie tarsi stumtelt\u0173 Saul\u0119 ir pakeist\u0173 jos gravitacin\u012f poveik\u012f planetoms.<\/p>\n

Saul\u0117 gali \u201estuks\u0117ti\u201c t\u016bkstan\u010dius kart\u0173<\/h2>\n

Tyrime modeliuojama, kad kiekvienas toks i\u0161metimo epizodas gal\u0117t\u0173 sudaryti apie vien\u0105 de\u0161imtt\u016bkstant\u0105j\u0105 Saul\u0117s mas\u0117s, o pana\u0161i\u0173 epizod\u0173 per v\u0117lyv\u0105 Saul\u0117s evoliucijos etap\u0105 gal\u0117t\u0173 b\u016bti t\u016bkstan\u010diai. Nors atskiras pokytis b\u016bt\u0173 ma\u017eas, j\u0173 suma gali i\u0161balansuoti did\u017ei\u0173j\u0173 planet\u0173 orbitas.<\/p>\n

Skai\u010diavimai rodo, kad atsitiktinumas \u010dia yra esminis: jei mas\u0117 b\u016bt\u0173 i\u0161metama idealiai simetri\u0161kai, poveikis gal\u0117t\u0173 i\u0161silyginti. Ta\u010diau realisti\u0161kesn\u0117, netolygi mas\u0117s netektis gali sukurti ilgainiui did\u0117jan\u010dius orbit\u0173 nukrypimus.<\/p>\n

Kas nutikt\u0173 planetoms?<\/h2>\n

Modeliuose, kuriuose taikyti tik\u0117tini mas\u0117s netekimo parametrai, didel\u0117je dalyje scenarij\u0173 i\u0161orin\u0117s planetos pradeda pavojingai art\u0117ti prie orbit\u0173 persikirtimo dar iki tol, kol Saul\u0117 baigia netekti did\u017eiosios dalies i\u0161orini\u0173 sluoksni\u0173. Kai kuriais atvejais reik\u0161mingas nestabilumas prasideda Saulei praradus tik apie 10 proc. mas\u0117s.<\/p>\n

Galimos pasekm\u0117s skamba dramati\u0161kai: Uranas ir Nept\u016bnas teori\u0161kai gal\u0117t\u0173 pakeisti savo vietas arba pasislinkti \u012f gerokai vidines orbitas, sukeldami grandinin\u0119 gravitacin\u0119 sumai\u0161t\u012f. Kai kuriuose scenarijuose bent viena mil\u017ein\u0117 planeta galiausiai b\u016bt\u0173 i\u0161mesta \u012f tarp\u017evaig\u017edin\u0119 erdv\u0119 ir tapt\u0173 klajojan\u010dia planeta.<\/p>\n

Kod\u0117l tai svarbu ne tik mums?<\/h2>\n

Toks rezultatas reik\u0161t\u0173, kad Saul\u0117s sistemos ateitis gali b\u016bti ne tik trumpesn\u0117, bet ir daug labiau priklausoma nuo atsitiktini\u0173 proces\u0173, nei buvo manyta anks\u010diau. Tyrimo autoriai pabr\u0117\u017eia, kad tai kei\u010dia ir platesn\u012f po\u017ei\u016br\u012f \u012f planetini\u0173 sistem\u0173 raid\u0105, nes did\u017eioji dalis Pauk\u0161\u010di\u0173 Tako \u017evaig\u017ed\u017ei\u0173 gyvenimo pabaigoje patiria pana\u0161ius virsmus.<\/p>\n

\u201eStaigmena yra ta, kas nutinka, kai tariamas glotnumas virsta atskirais i\u0161metimo \u012fvykiais: vaizdas pasikei\u010dia i\u0161 esm\u0117s\u201c, \u2013 sak\u0117 vienas tyrimo autori\u0173 Konstantinas Batyginas.<\/p>\n

Tyr\u0117j\u0173 teigimu, anks\u010diau \u012fsivaizduotas tylus ir tvarkingas planetini\u0173 sistem\u0173 \u201ei\u0161\u0117jimas \u012f pensij\u0105\u201c gali b\u016bti mitas. Jei mas\u0117s netekimas i\u0161 ties\u0173 vyksta tr\u016bk\u010diojan\u010diai, daugelio sistem\u0173 orbitos v\u0117lyvoje stadijoje gali tapti gerokai trapesn\u0117s, o klajojan\u010di\u0173 planet\u0173 atsiradimas gal\u0117t\u0173 b\u016bti nat\u016brali tokios pabaigos pasekm\u0117.<\/p>\n","protected":false},"excerpt":{"rendered":"

Naujas tyrimas rodo, kad Saul\u0117s mas\u0117s netekimas gali b\u016bti chaoti\u0161kas, tod\u0117l planet\u0173 orbitos i\u0161sibalansuot\u0173 ir sistema suirt\u0173 gerokai grei\u010diau.<\/p>\n","protected":false},"author":0,"featured_media":61130,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[10],"tags":[5745,42283,45341,46659,46658,226,6702],"miestas":[],"class_list":["post-61129","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mokslas","tag-astrofizika","tag-baltosios-nykstukes","tag-caltech","tag-gaia-misija","tag-planetu-orbitos","tag-saule","tag-saules-sistema"],"acf":[],"_links":{"self":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/posts\/61129","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/comments?post=61129"}],"version-history":[{"count":0,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/posts\/61129\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/media\/61130"}],"wp:attachment":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/media?parent=61129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/categories?post=61129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/tags?post=61129"},{"taxonomy":"miestas","embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/miestas?post=61129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}