Zd\u00e1 se, \u017ee mise NASA TESS p\u0159ekro\u010dila sv\u00e9 p\u016fvodn\u00ed schopnosti. <\/p>\n
Satelit Transiting Exoplanet Survey Satellite, kter\u00fd byl vypu\u0161t\u011bn v roce 2018, m\u011bl pouze jeden jasn\u00fd \u00fakol. Pozorujte bl\u00edzk\u00e9 hv\u011bzdy. Hledejte drobn\u00e9 poklesy jasu, kdy\u017e planeta proch\u00e1z\u00ed p\u0159ed hv\u011bzdou. Zvl\u00e1dl to bezchybn\u011b. Byly potvrzeny stovky nov\u00fdch sv\u011bt\u016f. V\u011bdci si ale teprve nyn\u00ed uv\u011bdomuj\u00ed, \u017ee dru\u017eice tak\u00e9 sb\u00edrala d\u016fkazy o n\u011b\u010dem zcela neo\u010dek\u00e1van\u00e9m. N\u011bco, co podle tv\u016frc\u016f ani nem\u011bl vid\u011bt. <\/p>\n
Ve studii publikovan\u00e9 v \u010dervenci v \u010dasopise Astrophysical Journal Letters<\/em> t\u00fdm hl\u00e1s\u00ed detekci planety Gaia23bra b. Toto je sv\u011bt ob\u00edhaj\u00edc\u00ed kolem hv\u011bzdy vzd\u00e1len\u00e9 asi 40 000 sv\u011bteln\u00fdch let. To je v\u00edce ne\u017e 250kr\u00e1t d\u00e1le ne\u017e hv\u011bzdn\u00e1 sousedstv\u00ed, ke kter\u00fdm byl TESS navr\u017een. <\/p>\n P\u0159em\u00fd\u0161lejte o tom na chv\u00edli. Nam\u00ed\u0159\u00edte videokameru sv\u00e9ho zahradn\u00edho pta\u010d\u00edho krm\u00edtka na vanu a pak si uv\u011bdom\u00edte, \u017ee jste omylem nato\u010dili migraci kolib\u0159\u00edka z jin\u00e9ho kontinentu. To je zhruba situace. <\/p>\n Je\u0161t\u011b podivn\u011bj\u0161\u00ed je, \u017ee TESS pou\u017eil metodu detekce, kterou nikdy nem\u011bl pou\u017e\u00edvat. <\/p>\n Probl\u00e9m (nebo sp\u00ed\u0161e p\u0159edpoklad objevu) nastal v dubnu 2023. Sonda Gaia Evropsk\u00e9 kosmick\u00e9 agentury zahl\u00e9dla jasnou erupci od vzd\u00e1len\u00e9 hv\u011bzdy. Nebyl to v\u00fdbuch. Jednalo se o gravita\u010dn\u00ed mikro\u010do\u010dku, jev, kter\u00fd Albert Einstein p\u0159edpov\u011bd\u011bl ji\u017e v minul\u00e9m stolet\u00ed. <\/p>\n Zde je n\u00e1vod, jak to funguje. Z pohledu pozorovatele na Zemi se ob\u011b hv\u011bzdy \u0159ad\u00ed t\u00e9m\u011b\u0159 do jedn\u00e9 linie. Gravitace nejbli\u017e\u0161\u00ed hv\u011bzdy oh\u00fdb\u00e1 sv\u011btlo z t\u00e9 za n\u00ed. P\u016fsob\u00ed jako kosmick\u00e1 \u010do\u010dka, kter\u00e1 toto sv\u011btlo zesiluje. Pokud m\u00e1 hv\u011bzda v pop\u0159ed\u00ed planetu, vytvo\u0159\u00ed v t\u00e9to vylep\u0161en\u00e9 z\u00e1\u0159i vlnky. <\/p>\n Gaia detekovala erupci hv\u011bzdy, ale minula planetu. Jeho data byla p\u0159\u00edli\u0161 \u0159\u00eddk\u00e1. Nebylo dost obr\u00e1zk\u016f. Ale o necel\u00fd m\u011bs\u00edc pozd\u011bji byla TESS oto\u010dena do stejn\u00e9 \u010d\u00e1sti oblohy. <\/p>\n “Pozorov\u00e1n\u00ed Gaie nebylo dostate\u010dn\u011b hust\u00e9, aby bylo mo\u017en\u00e9 zahl\u00e9dnout planetu. TESS shodou okolnost\u00ed sledoval stejnou oblast b\u011bhem ud\u00e1losti a jej\u00ed rostouc\u00ed pokryt\u00ed v pr\u016fb\u011bhu \u010dasu odhalilo dal\u0161\u00ed funkce.” \u2014 Mallory Harris, Ph.D., z University of New Mexico (UNM), hlavn\u00ed autor studie. <\/p>\n<\/blockquote>\n Nikdo tomu ale nev\u011bnoval pozornost. <\/p>\n Pro\u010d se museli d\u00edvat? <\/p>\n “Kdy\u017e TESS startoval, nikdo ne\u010dekal, \u017ee bude schopen naj\u00edt planety tohoto typu.” \u2014 Diana Dragomir, spoluautorka studie z UNM. <\/p>\n<\/blockquote>\n Srovn\u00e1n\u00ed t\u011bl se stalo a skon\u010dilo. Sign\u00e1l z planety le\u017eel ti\u0161e v archivech. Ne\u017e t\u00fdm spojil v\u0161echny body, ub\u011bhly t\u00e9m\u011b\u0159 t\u0159i roky ticha. <\/p>\n Tento objev nazna\u010duje n\u011bco v\u00edc. Je pravd\u011bpodobn\u00e9, \u017ee v datech jsou skryty i dal\u0161\u00ed mikro\u010do\u010dkov\u00e9 planety. Jen n\u00e1s nenapadlo je tam hledat. Jeden z nejlep\u0161\u00edch lovc\u016f NASA m\u00e1 st\u00e1le na sv\u00fdch pevn\u00fdch disc\u00edch p\u0159ekvapen\u00ed. Mo\u017en\u00e1 je\u0161t\u011b v\u00edce p\u0159ekvapen\u00ed. \ud83d\udef0\ufe0f<\/p>\n","protected":false},"excerpt":{"rendered":" Zd\u00e1 se, \u017ee mise NASA TESS p\u0159ekro\u010dila sv\u00e9 p\u016fvodn\u00ed schopnosti. Satelit Transiting Exoplanet Survey Satellite, kter\u00fd byl vypu\u0161t\u011bn v roce 2018, m\u011bl pouze jeden jasn\u00fd \u00fakol. Pozorujte bl\u00edzk\u00e9 hv\u011bzdy. Hledejte drobn\u00e9 poklesy jasu, kdy\u017e planeta proch\u00e1z\u00ed p\u0159ed hv\u011bzdou. Zvl\u00e1dl to bezchybn\u011b. Byly potvrzeny stovky nov\u00fdch sv\u011bt\u016f. V\u011bdci si ale teprve nyn\u00ed uv\u011bdomuj\u00ed, \u017ee dru\u017eice tak\u00e9 […]<\/p>\n","protected":false},"author":1,"featured_media":7872,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":""},"categories":[1],"tags":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts\/7873"}],"collection":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/comments?post=7873"}],"version-history":[{"count":0,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/posts\/7873\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/media\/7872"}],"wp:attachment":[{"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/media?parent=7873"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/categories?post=7873"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.schooler.org.ua\/cs\/wp-json\/wp\/v2\/tags?post=7873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
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