Ososayensi baye baqala ukucinga iplanethi yeshumi esimisweni sonozungezilanga

Ngonyaka odlule, kodwa sathola ukuthi kwakuboshwe angase iplanethi lesishiyagalolunye kube ecasha imingcele engaphandle yesimiso sethu sonozungezilanga. Kodwa manje ososayensi baye baqala ukukhuluma mayelana nokuthi zingenzani khona ababili.

I waphawula anomalies

Kate Wolf futhi Renu Malhotra we Lunar futhi yemihlaba Laboratory wase-University of Arizona isifundo kabani Imiphumela izoshicilelwa ku Astrophysical Journal. Kuyo, ososayensi sebezitholile emadwaleni isikhala Kuiper ibhande - endaweni ngale emzileni Neptune. Ukunyakaza kwabantu noma izithunzi ezinye zalezi emizimbeni kusikisela ukuthi abanye iplanethi ezingabonwayo kungayithonya orbit yabo.

"I okungenzeka kakhulu incazelo miphumela - iyona khona kwezinye mass ezingabonwayo ', - uthe Kate Wolf, ngubani umlobi oyinhloko walo ucwaningo.

Esikwaziyo iplanethi yezinto yeshumi

Uma kuqhathaniswa isisindo le mbulunga yethu yezinto yeshumi kungenzeka okuthile phakathi Earth-Mars. Futhi bacabanga ukuthi kumelwe babe seduze Sun ngaphandle iplanethi lesishiyagalolunye. Ososayensi balinganisela ukuthi emzileni iplanethi yezinto yeshumi itholakala mayelana 60 izikhathi phambidlana eLangeni kunomhlaba (ie, at ibanga 60 AU, noma amayunithi yezinkanyezi). iplanethi lesishiyagalolunye okukholelwa ukuthi akhiwe kude-500 kuya ku-700-AU.

Ososayensi baye baqala ukukhuluma mayelana nokuba khona kwamakamu iplanethi yeshumi ngemva kokutadisha 600 Kuiper ibhande izinto. Ezinye zazo babebonakala orbit "sikhubazekile", okuyinto esitshekile ngu degrees eziyisishiyagalombili ngemva kwendiza esemkhathini amaplanethi ezinkulu esimisweni sonozungezilanga.

Ngokwabacwaningi, indlela engcono kakhulu ukuchaza lokhu ukusonteka - ukuthwala khona kule planethi esingaziwa. Ngesikhathi esifanayo, le planethi lesishiyagalolunye, ogama mass kubikwa izikhathi 10 mass Zomhlaba, okungukuthi cishe uhhafu nenqwaba Neptune, awukwazi ukuchaza waphawula anomaly.

Iplanethi lesishiyagalolunye, ngokososayensi, itholakala kude kakhulu ukuba nomthelela letintfo Kuiper Belt. iplanethi Weshumi ngokuqinisekile kufanele akhiwe hhayi ngaphezulu kuka-100-AU, ukuze kakhulu kuthinte Kuiper ibhande izinto ngaphakathi kwerherho.

ucwaningo ukugxekwa

Yiqiniso, lokhu akusho ukuthi iplanethi yeshumi ukhona, njengoba kushiwo esakazwa abanye ososayensi. Ngokwesibonelo, u-Alessandro Morbidelli we Observatory we Côte d'Azuri e Nice (France) angabaze ukuthi close ezinjalo kanye iplanethi elikhanyayo ungase kungaqashelwa kuze kube yileso sikhathi.

Nokho, ososayensi owenza lokhu kuhlola sithi namanje abakabutholi iplanethi okweshumi, ngoba kungenziwa ise izingxenye aminyene emaphakathi kuyi-Milky Way. Uma kubhekwa Emhlabeni, eyakhishwa ngo esifundeni kungabonwa eziningi izinkanyezi, okuyinto kuthiye luhlolo okubonakalayo.

Incazelo ehlukile

Kodwa kukhona esinye kuchazwa anomalies uyalandelwa. Deformation we emzileni ezinye izinto Kuiper Belt zingachazwa ngezinqubo kwethonya odlulayo izinkanyezi "eduze." Noma kunjalo, kwakuyoba khona eduze Kuiper ibhande esithile last 10 kuphela ngemva kweminyaka eyisigidi, okuyinto Kubonakala kungenakwenzeka.

Kulindeleke ukuthi isimiso sonozungezilanga ukwazi ukufihla uquqaba imihlaba asiyazi. iplanethi Weshumi njengoba lesishiyagalolunye, kungase kube nje ingxenye encane imfihlakalo, esinakho kodwa ukuhlola.