ʻO ka mea pohihihi o nā Trojans a me nā Helene
ʻO ka mea pohihihi o ke ola paha ka mea nui loa, akā ʻaʻole wale ka mea pohihihi o kā mākou Pūnaehana kahi e ʻimi nei nā ʻepekema i ko lākou lolo. Aia kekahi, no ka laʻana, nā Trojans a me nā Helene, i.e. ʻelua pūʻulu o nā asteroids e hoʻopuni ana i ka Lā ma nā ʻōpuni like loa me ka orbit o Jupiter (4). Hoʻopili ʻia lākou a puni nā kiko o ka libration (ʻo nā poʻo o ʻelua mau huinakolu like me ke kumu ʻo ka ʻāpana Sun-Jupiter).
4. ʻO nā Trojans a me nā Helene e hoʻopuni ana iā Jupiter
No ke aha i nui ai kēia mau mea a no ke aha i hoʻonohonoho ʻia ai lākou? Eia kekahi, "ma ke ala" o Jupiter aia kekahi mau asteroids no ka "Greek camp", e loaʻa iā Jupiter i kāna neʻe orbital, e neʻe ana a puni ka libration point L4, aia ma kahi orbit 60 ° ma mua o ka honua, a no laila. i ka "Trojan camp" e hahai ma hope o ka honua, kokoke i L5, ma kahi orbit 60° ma hope o Jupiter.
He aha kāu e ʻōlelo ai kāʻei Kuiper (5), ʻaʻole maʻalahi ka wehewehe ʻana i kāna hana, e like me nā kumumanaʻo kahiko. Eia kekahi, nui nā mea i loko o ia mea e huli ana i nā ʻōpuni ʻē aʻe. I kēia mau lā, ua ulu ka manaʻo e pili ana nā anomalies i ʻike ʻia ma kēia māhele e kahi mea nui, ʻo ia ka mea i kapa ʻia ʻo ka honua ʻeiwa, ʻaʻole naʻe i ʻike pololei ʻia. Ke ho'āʻo nei ka poʻe ʻepekema e hana i nā anomalies ma ko lākou ala ponoʻī - ke kūkulu nei lākou i nā hiʻohiʻona hou (6).
5 ʻO ke kāʻei Kuiper a puni ka Pūnaehana Lā
No ka laʻana, e like me ka mea i kapa ʻia Nicene model, i hōʻike mua ʻia ma 2005, ʻoi aku ka liʻiliʻi o kā mākou ʻōnaehana solar i ka wā mua, akā he mau haneli miliona mau makahiki ma hope o kona hoʻokumu ʻia ʻana. neʻe honua i nā orbit hou aku. Hāʻawi ke kumu hoʻohālike Nice i pane kūpono i ka hoʻokumu ʻia ʻana o Uranus a me Neptune, he mau ʻōpuni mamao loa e hana ʻia ma ka ʻōnaehana solar mua no ka mea haʻahaʻa loa ka nui o nā mea ma laila.
Wahi a Francesca DeMeo, he kanaka ʻepekema ma ka US Harvard-Smithsonian Center for Astrophysics (CfA), ua kokoke loa ʻo Jupiter i ka Lā i ka wā ma mua e like me Mars i kēia manawa. A laila, i ka neʻe ʻana i kona orbit o kēia manawa, ua luku ʻo Jupiter i ka ʻāpana asteroid āpau - ʻo 0,1% wale nō o ka heluna asteroid i koe. Ma ka ʻaoʻao ʻē aʻe, ua hoʻouna aku kēia neʻe i nā mea liʻiliʻi mai ke kāʻei asteroid a i waho o ka ʻōnaehana solar.
6. Nā ʻano hoʻohālike like ʻole o ka hoʻokumu ʻana i nā ʻōnaehana honua mai nā protodisks o ka mea.
Ma muli paha o ka neʻe ʻana o nā pilikua kinoea i loko o kā mākou ʻōnaehana solar, ua hui pū ʻia nā asteroids a me nā comets me ka Honua, no laila e hoʻolako i ko mākou honua me ka wai. ʻO ia paha ke ʻano o ke ʻano o ka hoʻokumu ʻia ʻana o nā hōkūhele me nā hiʻohiʻona e like me ka ili o ka Honua, a ʻoi aku ka nui o ke ola ma nā mahina hau a i ʻole nā ao moana nui. Hiki i kēia kŘkohu ke wehewehe i ka wahi ʻē o nā Trojans a me nā Helene, a me ka pōʻino asteroid nui i ʻike ʻia e ko mākou ʻāina honua ma kahi o 3,9 biliona makahiki i hala aku nei a ʻike maopopo ʻia kona mau meheu ma ka ʻili o ka mahina. Ua hana ia ma ka Honua ia manawa Ke au o Hadean (mai Hades, a i ʻole ʻo Gehena Helene kahiko).
