Izazinzulu ziye zaqala ukufuna iplanethi yeshumi kwinkqubo solar

Kunyaka ophelileyo, siye safumanisa ukuba lo mhlaba lesithoba ukuba ezimela imida zangaphandle wezijikelezi-langa. Kodwa ngoku izazinzulu baqalisa ukuthetha yintoni kukho ezimbini.

I okungahambi baphawula

Kate Wolf and Renu Malhotra of the Lunar kunye yemihlaba Laboratory kwiYunivesithi Arizona waqhuba isifundo bawo iziphumo ziya kupapashwa kwi-Astrophysical Journal. Kuyo, oosonzululwazi umkhondo emaweni isithuba ibhanti Kuiper - ummandla ngaphaya komzila kweneptune. Ukuhanjiswa ezinye zezi imizimba lubonisa ukuba ezinye iplanethi unseen nefuthe orbit zabo.

"Eyona kungenzeka ukuba ezi ziphumo - ibikukubakho kwento ethile abaninzi engabonakaliyo", - Wathi Kate Ngcuka, ngubani na ke umbhali esisisikhokelo isifundo.

Into esiyaziyo iplanethi yeshumi kwinto

Ngokobunzima yale planethi yeshumi yezinto kunokuba yinto phakathi Earth and Mars. Kwakhona kucingelwa ukuba kufuneka ngakumbi Sun ngaphezu umhlaba lesithoba. Izazinzulu ziqikelela ukuba komzila zeplanethi yeshumi ezingenzeka isendaweni 60 liqhele ukusuka iLanga ngaphezu Umhlaba (okt, kumgama 60 AU, okanye iiyunithi ngeenkwenkwezi). planet yesithoba Kukholelwa ukuba ingabekwa kumgama 500 ukuya 700 AU.

Izazinzulu baye baqala ukuthetha malunga ubukho planet yeshumi emva kokufunda 600 Kuiper izinto bhanti. Ezinye zibonakala abe orbit "likhubazeke", oko kukuthi itsheke yi degrees ezisibhozo moya Orbital ezinye iiplanethi ezinkulu kwinkqubo elanga.

Ngokutsho kwabaphandi, eyona ndlela ifanelekileyo ukuchaza le deformation - ukucinga ukhona umhlaba ezingaziwayo. Kwangaxeshanye, umhlaba lesithoba, ogama ubunzima ekutyholwa amaxesha 10 ubunzima boMhlaba, oko kukuthi malunga nesiqingatha ubunzima abanjengoNeptune, abakwazi chaza waphawula anomaly.

Iplanethi yesithoba, ngokutsho izazinzulu, ibekwe kude kakhulu ukuba kuchaphazela ezi zinto Kuiper Belt. planet Weshumi ngokuqinisekileyo kufuneka zibekwe hayi ngaphezulu kwe-100 AU, ukuba ukuchaphazela kakhulu izinto bhanti Kuiper kweli banga.

ukugxekwa uphando

Kakade ke, oku akuthethi ukuba umhlaba yeshumi ukho, njengoko watshoyo ezinye izazinzulu. Umzekelo, Alessandro Morbidelli of Observatory le Côte d'Azure e Nice (France) ayithandabuze ukuba olusondeleyo kunye planet eliqaqambileyo angaya kuyabonwa kude kube lelo xesha.

Noko ke, neengcaphephe waqhuba isifundo bathi nangoku siye abafumana umhlaba yeshumi, kuba kokuba zibekwe kwiindawo ezishinyeneyo engundoqo ye-iMilky Way. Xa usibona Earth, kwingingqi kunokubonwa okuninzi iinkwenkwezi, nto leyo ethintela zeemviwo yayo ezibonwayo.

Enye indlela yokuchaza

Kodwa kukho nenye ingcaciso okungahambi waphawula. Deformation ye komzila kwezinye izinto Kuiper Belt kungachazwa yimpembelelo liyadlula iinkwenkwezi "kufutshane". Sekunjalo, bekuya kufuneka eze kufutshane bhanti Kuiper kwezinye ingongoma minyaka izizigidi-10 edlulileyo, apho kubonakala kungenakwenzeka.

Kulindeleke ukuba inkqubo esuka elangeni wagubungela inkitha siyibambe ezingaziwayo kuthi. planet seshumi yesithoba, ibe nje yinxalenye encinane mfihlelo, leyo thina kodwa ukuba ukuhlola.