{"id":37985,"date":"2025-11-11T23:52:17","date_gmt":"2025-11-11T23:52:17","guid":{"rendered":"https:\/\/www.europesays.com\/lt\/37985\/"},"modified":"2025-11-11T23:52:17","modified_gmt":"2025-11-11T23:52:17","slug":"keistas-dangaus-kunas-glumina-nasa-astronomai-aptiko-objekta-kuris-priestarauja-fizikos-desniams","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/lt\/37985\/","title":{"rendered":"Keistas dangaus k\u016bnas glumina NASA: astronomai aptiko objekt\u0105, kuris prie\u0161tarauja fizikos d\u0117sniams"},"content":{"rendered":"

Vir\u0161 Arizonos dykum\u0173 lapkri\u010dio prad\u017eioje pasirod\u0117 \u012fsp\u016bdingas dangaus rei\u0161kinys \u2013 \u017ealsvai \u0161vytinti kometa, atkeliavusi i\u0161 tolim\u0173 galaktikos gl\u016bd\u0173. Tai jau tre\u010diasis \u017emonijos istorijoje u\u017efiksuotas tarp\u017evaig\u017edinis objektas, kurio elgesys ir sud\u0117tis stebina net patyrusius astronomus.<\/p>\n

Kometa 3I\/ATLAS, dar neseniai pra\u0117jusi periheliu \u2013 artimiausi\u0105 Saul\u0117s ta\u0161k\u0105 \u2013 buvo u\u017efiksuota 2024 m. lapkri\u010dio 5 d. astronome Qicheng Zhang i\u0161 Lowell observatorijos. Per teleskop\u0105 \u201eDiscovery\u201c matytas vaizdas nustebino.\u00a0<\/p>\n

Vietoje \u012fprasto dulki\u0173 uodegos kometa pasirod\u0117 kaip \u0161vytinti \u017ealia sfera, be ai\u0161kios strukt\u016bros, tik su ne\u017eymia \u0161viesos asimetrija.<\/p>\n

\u0160is ne\u012fprastas \u017ealsvas \u0161vyt\u0117jimas yra dviatomio anglies molekuli\u0173 poveikis. Saul\u0117s ultravioletiniai spinduliai suskaido sud\u0117tingesnius angliavandenilius kometos atmosferoje (komoje), o susidariusios molekul\u0117s \u0161vyti \u017ealiai.\u00a0<\/p>\n

\"\"\/<\/p>\n

Zhang palygino \u0161\u012f proces\u0105 su odos nudegimais: \u201eUV spinduliai pa\u017eeid\u017eia DNR l\u0105stel\u0117se taip pat, kaip suskaido molekules kometos atmosferoje.\u201c<\/p>\n

Spektroskopiniai tyrimai parod\u0117, kad 3I\/ATLAS skleid\u017eia daug \u0161viesos m\u0117lynai-\u017ealiame spektro ruo\u017ee, o tai rodo aktyvias chemines reakcijas. Zhang komanda paskelb\u0117 i\u0161ankstinius tyrim\u0173 duomenis, dokumentuodama reik\u0161ming\u0105 kometos \u0161viesumo padid\u0117jim\u0105 art\u0117jant prie Saul\u0117s.<\/p>\n

Kur dingo \u012fprastin\u0117 kometos uodega?<\/p>\n

Nors i\u0161 pirmo \u017evilgsnio atrodo, kad kometa neturi uodegos, tai apgaulingas \u012fsp\u016bdis. Dulki\u0173 uodega yra, ta\u010diau ji beveik sutampa su \u017ei\u016br\u0117jimo kryptimi, tod\u0117l atrodo kaip \u0161viesos nelygumas, o ne \u012fsp\u016bdinga juosta.\u00a0<\/p>\n

Kometa priart\u0117jo prie Saul\u0117s spalio 29 dien\u0105, o did\u017eiausias jos aktyvumas prasid\u0117jo po to \u2013 d\u0117l suintensyv\u0117jusio duj\u0173 ir dulki\u0173 garavimo.<\/p>\n

Zhang pirmasis opti\u0161kai u\u017efiksavo komet\u0105 po periheliumo spalio 31 dien\u0105. Tuo metu jos koma u\u017e\u0117m\u0117 apie 40 arksekund\u017ei\u0173, o ry\u0161kumas siek\u0117 10,5 magnitud\u0117s. Dabar kometa pakankamai auk\u0161tai danguje, kad j\u0105 gal\u0117t\u0173 steb\u0117ti ne tik profesionalios observatorijos, bet ir patyr\u0119 m\u0117g\u0117jai su bent 15 cm skersmens teleskopais.<\/p>\n

Kosminio laiko paliktos \u017eym\u0117s<\/p>\n

\"\"\/<\/p>\n

Po milijard\u0173 met\u0173 kelion\u0117s tarp\u017evaig\u017edine erdve, kometos pavir\u0161ius smarkiai pasikeit\u0117. Ilgalaikis kosmin\u0117s spinduliuot\u0117s poveikis suformavo stor\u0105, pakeist\u0105 i\u0161orin\u0119 sluoksn\u012f.\u00a0<\/p>\n

B\u016btent \u0161i transformuota danga dabar reaguoja \u012f Saul\u0117s spindulius, ne kometos giluminis, autenti\u0161kas ledyninis turinys. Tai kelia i\u0161\u0161\u016bki\u0173 norint tiksliai nustatyti kometos kilm\u0119, tarsi bandytum suprasti knyg\u0105, kurios vir\u0161eliai ir pirmi puslapiai jau sunaikinti.<\/p>\n

Nepaisant ne\u012fprasto sud\u0117ties ir pavir\u0161iaus poky\u010di\u0173, 3I\/ATLAS i\u0161gyveno art\u0117jim\u0105 prie Saul\u0117s be joki\u0173 skilimo \u017eenkl\u0173. Steb\u0117jimai rodo, kad ji i\u0161lieka stabili, su ry\u0161kia \u017ealsva koma, kurios \u0161vyt\u0117jim\u0105 lemia dviatominis anglis.<\/p>\n

Langas \u012f ne\u017einom\u0105 Visat\u0105<\/p>\n

Zhang ir jo kolegos dabar pasinaudoja unikalia proga \u2013 tai gyvas laboratorinis pavyzdys objekto, kuris milijardus met\u0173 egzistavo u\u017e m\u016bs\u0173 Saul\u0117s sistemos rib\u0173.\u00a0<\/p>\n

Kiekvienas matymas, kiekviena spektro linija padeda atskleisti, kaip lediniai k\u016bnai kinta tarp\u017evaig\u017edin\u0117je erdv\u0117je ir kaip spinduliuot\u0117 veikia organines med\u017eiagas.<\/p>\n

Net jei \u0161i kometa neatskleis vis\u0173 savo paslap\u010di\u0173, jos egzistavimas yra priminimas, kad Visata nuolat siun\u010dia mums \u017einutes, tereikia pakelti \u017evilgsn\u012f \u012f dang\u0173 ir jas pasteb\u0117ti.<\/p>\n","protected":false},"excerpt":{"rendered":"Vir\u0161 Arizonos dykum\u0173 lapkri\u010dio prad\u017eioje pasirod\u0117 \u012fsp\u016bdingas dangaus rei\u0161kinys \u2013 \u017ealsvai \u0161vytinti kometa, atkeliavusi i\u0161 tolim\u0173 galaktikos gl\u016bd\u0173.…\n","protected":false},"author":2,"featured_media":37986,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[25,10265,6622,30,31,4782,10270,34,35,10268,10264,24,10269,1930,538,32,33,37,39,36,38,40,2260,23,22,10266,28,29,10267,26,27],"class_list":{"0":"post-37985","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-antrastes","8":"tag-antrastes","9":"tag-aptiko","10":"tag-astronomai","11":"tag-breaking-news","12":"tag-breakingnews","13":"tag-dangaus","14":"tag-desniams","15":"tag-featured-news","16":"tag-featurednews","17":"tag-fizikos","18":"tag-glumina","19":"tag-headlines","20":"tag-keistas","21":"tag-kunas","22":"tag-kuris","23":"tag-latest-news","24":"tag-latestnews","25":"tag-lietuva","26":"tag-lietuviu","27":"tag-lithuania","28":"tag-lithuanian","29":"tag-lt","30":"tag-nasa","31":"tag-naujienos","32":"tag-news","33":"tag-objekta","34":"tag-populiariausios-naujienos","35":"tag-populiariausiosnaujienos","36":"tag-priestarauja","37":"tag-top-stories","38":"tag-topstories"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@lt\/115533758048118638","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/posts\/37985","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/comments?post=37985"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/posts\/37985\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/media\/37986"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/media?parent=37985"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/categories?post=37985"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/lt\/wp-json\/wp\/v2\/tags?post=37985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}