{"id":12857,"date":"2021-04-20T18:55:24","date_gmt":"2021-04-20T21:55:24","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/?p=12857"},"modified":"2023-01-05T14:26:53","modified_gmt":"2023-01-05T17:26:53","slug":"interstellar-object-oumuamua-alien-craft","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/et\/interstellar-object-oumuamua-alien-craft\/","title":{"rendered":"Kas t\u00e4htedevaheline objekt 'Oumuamua on tulnukate laev?"},"content":{"rendered":"

Veidi rohkem kui kolm aastat tagasi ilmus 2017. aastal taevasse kummaline objekt. Objekti nimi oli 'Oumuamua, mis on astronoomia kogukonda l\u00f5hestanud, tekitades arutelusid selle olemuse \u00fcle.<\/p>\n\n\n\n

\u00dcks teadlaste r\u00fchm v\u00e4idab, et t\u00e4htedevaheline keha on tekkinud teise planeedi gravitatsiooniv\u00e4ljast vabanedes, samas kui teised v\u00e4idavad, et v\u00f5ib-olla on tegemist v\u00f5\u00f5raste \u00f5hus\u00f5idukiga, sest see erineb oma paljude omaduste poolest k\u00f5igest juba n\u00e4htust.<\/p>\n\n\n\n

Milline teooria on \u00f5ige, j\u00e4\u00e4b ebaselgeks.<\/p>\n\n\n\n

\u00dches podcasti Joe Rogan Experience episoodis r\u00e4\u00e4kis teoreetiline f\u00fc\u00fcsik ja Harvardi professor Avi Loeb Ameerika koomiku ja podcasti saatejuhi Joe Roganiga, et kaitsta tulnukate laeva teooriat.<\/p>\n\n\n\n

Joe Rogani podcastis selgitas ja arutas Loeb, miks ta sellele j\u00e4reldusele j\u00f5udis.<\/p>\n\n\n\n

\"Nagu Sherlock Holmes, j\u00e4lgin ma t\u00f5endeid, p\u00fc\u00fcdes leida lahendust,\" \u00fctleb Loeb p\u00e4rast seda, kui ta on k\u00fcsinud podcasti saatejuhilt, kas 2020. aasta Oumuamua poleemika on vallutanud.<\/p>\n\n\n\n

T\u00e4htedevaheline keha oli esimene v\u00e4ljaspoolt P\u00e4ikeses\u00fcsteemi asuv keha, mis k\u00fclastas meie \u00fcmbrust.<\/p>\n\n\n\n

Esimesel hetkel arvasid astronoomid, et tegemist v\u00f5ib olla teise komeedi v\u00f5i asteroidiga. Oumuamua omadused ei vastanud aga komeetide ja asteroidide parameetritele.<\/p>\n\n\n\n

Loeb selgitab, et 'Oumuamua ei olnud tavaline objekt, sellel olid m\u00f5ned anomaaliad, m\u00f5ned omadused, mis ei sarnanenud teiste juba n\u00e4htud tavaliste kosmoseobjektidega.<\/p>\n\n\n\n

Kuna tavalised komeedid p\u00e4rinevad P\u00e4ikeses\u00fcsteemi \u00e4\u00e4realalt, siis on (v\u00f5i v\u00e4hemalt peaks olema) ka teistel t\u00e4htedel oma komeedid. Pealegi on need komeedit\u00fckid perifeerias l\u00f5dvalt seotud ja v\u00f5ivad kergesti oma peremeestaevast v\u00e4ljuda ja liikuda erinevates suundades.<\/p>\n\n\n\n

Mis puudutab 'Oumuamua komeediks olemist, siis Loeb selgitab Joe Roganile, et \"komeedid on j\u00e4\u00e4ga kaetud kivid, kui nad j\u00f5uavad P\u00e4ikesele l\u00e4hedale, siis nende pind soojeneb ja j\u00e4\u00e4 muutub auruks, ning te n\u00e4ete selle taga seda ilusat komeedisaba... samas kui asteroidid on lihtsalt kivid, millel pole palju j\u00e4\u00e4d.\".<\/p>\n\n\n\n

Ja oli probleem \u00f6elda, et 'Oumuamua oli komeet, ei olnud mingit komeedisaba.<\/p>\n\n\n\n

Lisaks komeedisaba puudumisele oli veel \u00fcks ebatavaline omadus, mida tavap\u00e4rane astronoomia ei suutnud seletada:<\/p>\n\n\n\n

T\u00e4htedevahelisel kehal 'Oumuamua oli P\u00e4ikesest eemaldunud teekonnal t\u00e4iendav t\u00f5uge.<\/p>\n\n\n\n

Loeb selgitab, et see lisat\u00f5uge on tavaliselt olemas ja seda p\u00f5hjustab komeedisaba.<\/p>\n\n\n\n

J\u00e4\u00e4 aurustumine (nagu raketi k\u00fctuse p\u00f5letamine) annab kiviobjektile lisat\u00f5uke vastassuunas, kuid 'Oumuamua ei olnud komeedisaba, kust siis see lisat\u00f5uge tuli?<\/p>\n\n\n\n

Loeb jagas Joe Roganiga, et sel hetkel hakkas ta m\u00f5tlema, et v\u00f5ib-olla ei olnud 'Oumuamua komeet ega asteroid, vaid see v\u00f5is olla midagi muud, n\u00e4iteks tulnukate s\u00f5iduk.<\/p>\n\n\n\n

Lisaks sellele oli selle t\u00e4htedevahelise objekti teine kummaline omadus selle heledus.<\/p>\n\n\n\n

Oumuamua heledus muutis p\u00e4ikesevalguse peegeldust k\u00fcmnekordselt, mis v\u00f5ib t\u00e4hendada konkreetset geomeetrilist formaati.<\/p>\n\n\n\n

\"M\u00f5elge v\u00e4ga \u00f5hukesele paberilehele, mis tuule k\u00e4es keerleb ja muudab ala, mida me n\u00e4eme. Muutes selle paberit\u00fcki projitseeritud pindala k\u00fcmnekordselt, kui me seda vaatame. Just seda me j\u00e4reldasime selle iga kaheksa tunni tagant \u00fcmberringi p\u00f6\u00f6rleva objekti kohta,\" \u00fctles Loeb kummalise t\u00e4htedevahelise objekti heleduse kohta.<\/p>\n\n\n\n

See m\u00f5\u00f5detav tegur viis j\u00e4relduseni, et 'Oumuamua on t\u00f5en\u00e4oliselt kindla geomeetrilise kujuga ja t\u00f5en\u00e4oliselt lame, nagu paberileht.<\/p>\n\n\n\n

\"Kunstiline<\/a><\/figure>\n\n\n\n

K\u00f5igi eespool toodud andmete kokkuv\u00f5te n\u00e4itab, et t\u00e4htedevaheline objekt ei sisaldanud j\u00e4lgi tolmust v\u00f5i gaasist v\u00f5i muust materjalist, mis seletaks t\u00e4iendavat t\u00f5ukej\u00f5udu. Lisaks oli sellel ebatavaline heledus, mis on tingitud selle kujust.<\/p>\n\n\n\n

Loeb ja tema meeskond m\u00f5tlesid, mis v\u00f5iks seletada k\u00f5iki neid omap\u00e4raseid omadusi.<\/p>\n\n\n\n

Omakorda tulid nad v\u00e4lja teooriaga, et v\u00f5ib-olla t\u00f5ukab t\u00e4htedevahelist objekti selle pinnalt peegelduv p\u00e4ikesevalgus. Nii nagu \"m\u00fc\u00fcki l\u00fckkab tuul, saab ka \u00f5hukest objekti l\u00fckata valguse abil, seda nimetatakse valguspurjekaks, ja me kasutame seda tehnoloogiat praegu tegelikult, arendades seda kosmoseuuringute jaoks,\" \u00fctles Loeb Joe Roganile.<\/p>\n\n\n\n

Lisaks k\u00f5igele sellele oli 'Oumuamua kiirus v\u00e4ga ebatavaline.<\/p>\n\n\n\n

Kosmoseobjekt oli nii kiire, et astronoomid ei suutnud v\u00e4lja m\u00f5elda, kuidas seda objekti j\u00e4litada, et koguda rohkem teavet.<\/p>\n\n\n\n

V\u00f5rreldes Maalt startivate rakettidega oli \"Oumuamua\" m\u00e4rkimisv\u00e4\u00e4rselt kiirem, mist\u00f5ttu astronoomid j\u00e4tsid k\u00f5rvale v\u00f5imaluse, et tegemist v\u00f5iks olla Maalt p\u00e4rit tehnoloogiaga. <\/p>\n\n\n\n

Kogudes kokku kogu kosmoseobjektilt kogutud teabe, j\u00f5udsid Loeb ja tema meeskond j\u00e4reldusele, et see objekt v\u00f5ib kuuluda m\u00f5nele teisele tsivilisatsioonile ehk tulnukatele. <\/p>\n\n\n\n

See j\u00e4reldus tekitas astronoomide seas palju erimeelsusi, mis viisid 2020. aastal toimunud aruteluni selle kummalise objekti \u00fcle, mis ilmus taevasse 2017. aastal. <\/p>\n\n\n\n

Kas 'Oumuamua kuulub tulnukatele v\u00f5i mitte, v\u00f5ib-olla kulub aastak\u00fcmneid, et seda teada saada. V\u00f5i v\u00f5ib-olla ei saa me seda kunagi teada, seda n\u00e4itab ainult aeg.<\/p>\n\n\n\n

Loebi uuringute p\u00f5hjal ei saatnud \"Oumuamua\" siiski meie p\u00e4ikeses\u00fcsteemi tulnukad, et Maad luurata.<\/p>\n\n\n\n

V\u00f5ib-olla oli see lihtsalt mingi tulnuka tehnoloogia, mis tahtmatult kaotas end, nagu kosmosepr\u00fcgi.<\/p>\n\n\n\n

L\u00f5ppkokkuv\u00f5ttes peame sellest v\u00e4lja v\u00f5tma selle, et me k\u00f5ik peaksime olema avatud ja tulevikku suunatud k\u00f5igi v\u00f5imaluste suhtes, kaasa arvatud elu v\u00e4ljaspool meie p\u00e4ikeses\u00fcsteemi.<\/p>\n\n\n\n

T\u00e4ielik podcasti episood koos Avi Loebiga The Joe Rogan Experience'is on n\u00fc\u00fcd saadaval Spotify'is. Kui soovid ka teemat lugeda, siis siin on Loebi ja tema meeskonna poolt avaldatud teadusartiklite nimekiri. <\/p>\n\n\n\n

BIALY, S.; LOEB, A. Kas P\u00e4ikesekiirguse surve v\u00f5ib seletada `Oumuamua eriskummalist kiirendust? The Astrophysical Journal<\/strong>, v. 868, n. 1, lk L1, nov. 2018<\/a>. <\/p>\n\n\n\n

FORBES, J. C.; LOEB, A. \"Oumuamua kuumuse suurendamine. The Astrophysical Journal<\/strong>, v. 875, n. 2, lk L23, abr. 2019.<\/a><\/p>\n\n\n\n

HOANG, T. et al. Spinup and Disruption of Interstellar Asteroids by Mechanical Torques, and Implications for 1I\/2017 U1 (`Oumuamua). The Astrophysical Journal<\/strong>, v. 860, nr. 1, lk. 42, juuni 2018.<\/a><\/p>\n\n\n\n

HOANG, T.; LOEB, A. Molekulaarse vesinikj\u00e4\u00e4 h\u00e4vitamine ja selle m\u00f5ju 1I\/2017 U1 (`Oumuamua) suhtes. The Astrophysical Journal<\/strong>, v. 899, n. 2, lk L23, tagasi. 2020.<\/a><\/p>\n\n\n\n

SIRAJ, A.; LOEB, A. `Oumuamua geomeetria v\u00f5ib olla \u00e4\u00e4rmuslikum kui varem oletatud. AASi teadust\u00f6\u00f6 m\u00e4rkmed<\/strong>, v. 3, n. 1, lk. 15, jan. 2019.<\/a><\/p>\n\n\n\n

___<\/p>\n\n\n\n


Lugupeetud astronoomia valdkonna teadlased, aastal Mind the Graph<\/a> meil on planeedid<\/a>, galaktikad<\/a>, komeedid<\/a>, satelliidid<\/a>ja isegi astronaudid<\/a> mida saate kasutada oma graafilistes kokkuv\u00f5tetes, esitlustes, teaduslikes infograafiates, et muuta oma uurimist\u00f6\u00f6 ilusamaks ja atraktiivsemaks, et j\u00f5uda rohkemate inimesteni.<\/p>\n\n\n\n

Platvormi m\u00f5te on, et teil on t\u00e4ielik autonoomia, et te saaksite oma teadusuuringutest paremini teavitada, liituge meiega, et saada rohkem teavet selle kohta, kuidas kasutada platvormi ja edastada oma teaduslikke uuringuid.<\/a><\/p>\n\n\n\n

Alusta platvormi kasutamist kohe, kl\u00f5psates siia! <\/a>    <\/p>","protected":false},"excerpt":{"rendered":"

Veidi rohkem kui kolm aastat tagasi ilmus 2017. aastal taevasse kummaline objekt. Objekti nimi oli 'Oumuamua, mis on astronoomia kogukonda l\u00f5hestanud, tekitades arutelusid selle olemuse \u00fcle. \u00dcks r\u00fchm teadlasi v\u00e4idab, et t\u00e4htedevaheline keha on tekkinud teise planeedi gravitatsiooniv\u00e4ljast vabanedes, teised aga v\u00e4idavad, et v\u00f5ib-olla v\u00f5iks [...]<\/p>","protected":false},"author":18,"featured_media":12870,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[66,959,958,28],"tags":[96,51,554,775],"yoast_head":"\nIs the interstellar object \u2018Oumuamua an alien craft? - MTG<\/title>\n<meta name=\"description\" content=\"\u2018Oumuamua, the interstellar object, has divided the Astronomy field, raising discussions about its nature. 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