Ingcamango yomzobi yento ye-interstellar 'u-Oumuamua njengoko yayihamba ngenkqubo yelanga emva kokufunyanwa kwayo ngo-Okthobha u-2017.I-European Southern Observatory / uM. Umvavanyi Kwi-2017, i-Pan-STARRS yokujonga ngeenkwenkwezi eHawaii ifumene into engaqhelekanga esibhakabhakeni ebhabha kwindlela engaqhelekanga ngesantya esine ngokuphindwe kane kune-asteroid eqhelekileyo. Bayibiza ngokuba yi-'Oumuamua (ebizwa oh-mooah-mooah), ngokuthetha ukuba iscout in Hawaiian.
'U-Oumuamua wayengafani nantoni na izazi zeenkwenkwezi ezazibona ngaphambili. Ukuhamba kwayo kunye nesantya siphakamisa ukuba ivela kwenye inkqubo yeenkwenkwezi. Kodwa ukunqongophala kwayo ngomsila wegesi obonakalayo kwagweba ukuba kungenzeka ukuba yi-comet, ekhokelela kwizazinzulu ezithile, ngakumbi isazi ngeenkwenkwezi esiphezulu saseHarvard UAvi Loeb Ukuzibuza ukuba ingaba luhlobo oluthile lwe-artifact yetekhnoloji yelinye ilizwe.
Isifundo esitsha esenziwe ngoochwephesha bezobuchwephesha beYunivesithi yaseArizona State bayalile le hypothesis. Kwiphepha ezimbini ezipapashwe kwi-AGU Ijenali yoPhando lweGeophysical: Iiplanethi, USteven Desch kunye no-Alan Jackson we-ASU weSikolo soMhlaba kunye nokuHlolwa kweSithuba bagqibe kwelokuba 'u-Oumuamua kunokwenzeka ukuba sisiqwenga seplanethi efana nePluto evela kwenye inkqubo yeenkwenkwezi.
Mhlawumbi siyisombulule imfihlelo yokuba yintoni u-'Oumuamua, kwaye sinokuyichaza ngokufanelekileyo njengesiqwengana se 'exo-Pluto,' njengeplanethi efana nePluto kwenye inkqubo yelanga, iDesch, umbhali-mbhali wesifundo kunye ne-astrophysicist e-ASU, utshilo kwisaziso esishicilelweyo UMvulo.
Ngeendlela ezininzi u-Oumuamua wayefana ne-comet, kodwa yayiqhelekile ngokwaneleyo ngeendlela ngeendlela imfihlelo yayijikeleze indalo yayo, kwaye intelekelelo yayixhaphakile malunga nokuba yayiyintoni, wachaza. Ngamanye amagama, 'u-Oumuamua ufana ne-comet, kodwa ngokungafaniyo nayo nayiphi na into esele siyibonile.
Phakathi kwezifundo ezininzi ezijikeleze u-'Oumuamua ukusukela ngonyaka ka-2017, bekukho into ebekucingelwa ukuba yi-hydrogen iceberg, kwimeko apho besingayi kuwubona umsila wegesi nokuba ungumphunga njenge-comet, kuba i-hydrogen iyabonakala. Ukanti, uphononongo lukaLoeb lubonisa ukuba ihydrogen iceberg evela phakathi kweenkwenkwezi ngekwakukudala ikhuphukile ngaphambi kokuba ifike kummandla wethu welanga.
Ukuthatha loo ngcamango phambili, uDesch noJackson bafunda ukuba 'u-Oumuamua angenziwa ngezinye iintlobo zeqhwa. Ekugqibeleni bafumene uhlobo olunye lomkhenkce-i-nitrogen eqinileyo-ehambelana ncam nazo zonke iimpawu ze-‘Oumuamua. Kwaye ekubeni iqhwa le-nitrogen eqinileyo linokubonakala kumphezulu wePluto, kunokwenzeka ukuba into enjenge-comet inokwenziwa ngento enye.
Sasisazi ukuba sifikile kumbono olungileyo xa sigqiba ukubala ukuba yeyiphi i-albedo (indlela umzimba obonakalisa ngayo) eya kwenza ukuba isindululo 'se-Oumuamua' silingane nokuqwalaselwa, utshilo uJackson, isazinzulu seplanethi e-ASU. Elo xabiso liphume lafana njengoko sijonga umphezulu wePluto okanye iTriton, imizimba egutyungelwe ngumkhenkce we-nitrogen. Kungenzeka ukuba yatshitshiswa ebusweni yimpembelelo malunga nesiqingatha seminyaka edlulileyo kwaye ikhutshelwa ngaphandle kwenkqubo yabazali.
Ukuba yenziwe nge-nitrojeni efriziwe ikwachaza nokuma okungaqhelekanga njengepancake 'u-Oumuamua, oosonzululwazi banciphise ngokusekwe kwindlela ebonakalisa ngayo ilanga. Njengokuba umaleko wangaphandle womkhenkce wenitrojin usiya umphunga, ubume bomzimba buya kuthi ngokuthe ngcembe bucwecwe, njengebha yesepha xa umaleko ongaphandle ususwa ngokusetyenziswa, utshilo uJackson.
'U-Oumuamua wayesele ebhabha kude kuthi xa bekuqala ukufunyanwa, ke kukho ulwazi olunqongopheleyo lwenzululwazi abanokusebenza ngalo. UDesch noJackson banethemba lokuba iiteleskopu ezizayo, ezinje ngeVera C. Rubin Observatory / Large Synoptic Survey Telescope eChile, ziya kuba nakho ukuphonononga isibhakabhaka kwizinto zangaphakathi kweenkwenkwezi rhoqo.
Kuthatha amashumi amawaka eminyaka kwinto efana no-'Oumuamua ukujikeleza yonke inkqubo yelanga, ke ngalo naliphi na ixesha elininzi kukho inani elikhulu lezinto ezinjalo-i-quadrillion zezinto ezinjalo-kwinkqubo yelanga, uLoeb uxelele i-Braganca ngoJanuwari. Ngokwezibalo zethu, kuya kufuneka ibone ubuncinci into enje ngo-'Oumuamua inyanga nenyanga.
