Ua wāwahi ʻia nā manaʻo kahiko o ka ʻōnaehana solar i lepo

He mau moʻolelo ʻē aʻe i haʻi ʻia e nā pōhaku o ka ʻōnaehana lā. Ma ka Eve Makahiki Hou mai 2015 a 2016, he 1,6 kg meteor i pā ma kahi kokoke i Katya Tanda Lake Air ma Australia. Ua hiki i nā kānaka ʻepekema ke ʻimi iā ia a loaʻa iā ia ma nā wahi wao nahele nui ma muli o kahi pūnaewele paʻi kiʻi hou i kapa ʻia ʻo Desert Fireball Network.

Ua ʻike kekahi pūʻulu ʻepekema i kahi meteorite i kanu ʻia i loko o kahi papa mānoanoa o ka lepo paʻakai - ua hoʻomaka ka lalo maloʻo o ka loko e lilo i lepo ma muli o ka ua. Ma hope o nā haʻawina mua, ʻōlelo ka poʻe ʻepekema ʻo ia ka mea he stony chondrite meteorite - nā mea e pili ana i 4 a me ka hapalua piliona makahiki, ʻo ia hoʻi, ka manawa o ka hoʻokumu ʻana o kā mākou ʻōnaehana solar. He mea koʻikoʻi ke koʻikoʻi o ka meteorite no ka mea ma ka nānā ʻana i ka laina o ka hāʻule ʻana o kekahi mea, hiki iā mākou ke kālailai i kona orbit a ʻike i kahi i hele mai ai. Hāʻawi kēia ʻano ʻikepili i ka ʻikepili koʻikoʻi no ka noiʻi e hiki mai ana.

I kēia manawa, ua hoʻoholo ka poʻe ʻepekema ua lele ka meteor i ka Honua mai nā wahi ma waena o Mars a me Jupiter. Ua manaʻo ʻia he ʻoi aku ia ma mua o ka Honua. ʻAʻole hiki i ka ʻike ke hoʻomaopopo i ka evolution wale nō ʻŌnaehana polū - ʻO ka hoʻopiʻi kūleʻa ʻana o kahi meteorite hāʻawi i ka manaʻolana e loaʻa i nā pōhaku ākea ma ke ʻano like. ʻO nā laina o ke kahua hoʻopaneʻe ma ke ao o ka lepo a me ke kinoea e hoʻopuni ana i ka lā hānau mua. ʻO Chondrules, nā kīʻaha pōʻai (nā hale honua) o nā olivines a me nā pyroxenes, i hoʻopuehu ʻia i loko o ka mea o ka meteorite i loaʻa iā mākou, ua mālama i kahi moʻolelo o kēia mau māla magnetic variable kahiko.

Hōʻike nā ana ʻoihana kikoʻī loa ʻo ke kumu nui i hoʻoulu i ka hoʻokumu ʻana o ka ʻōnaehana solar ʻo ia nā nalu haʻalulu magnetic i loko o ke ao lepo a me ke kinoea e hoʻopuni ana i ka lā hou. ʻAʻole kēia i hana ʻia ma kahi kokoke o ka hōkū ʻōpio, akā ʻoi aku ka nui - kahi o ke kāʻei asteroid i kēia lā. ʻO ia mau hopena mai ka noiʻi ʻana i nā meteorites kahiko loa a me ka primitive chondrites, i paʻi ʻia i ka hopena o ka makahiki i hala ma ka puke pai ʻepekema e nā ʻepekema mai ka Massachusetts Institute of Technology a me Arizona State University.

Ua unuhi ka hui noiʻi honua i ka ʻike hou e pili ana i ka haku mele ʻana o ka lepo i hoʻokumu ʻia i ka ʻōnaehana solar 4,5 biliona makahiki i hala aku nei, ʻaʻole mai nā ʻōpala mua, akā me ka hoʻohana ʻana i nā simulation kamepiula kiʻekiʻe. Ua hana nā mea noiʻi ma Swinburne University of Technology ma Melbourne a me ke Kulanui o Lyon ma Palani i kahi palapala ʻāina ʻelua-dimensional o ka haku mele ʻana o ka lepo i hana i ka nebula lā. lepo lepo a puni ka lā ʻōpio kahi i hoʻokumu ʻia ai nā hōkūhele.

Ua manaʻo ʻia e kokoke ana nā mea wela kiʻekiʻe i ka lā ʻōpio, ʻoiai nā mea hoʻoheheʻe (e like me ka hau a me ka sulfur compound) i manaʻo ʻia e mamao loa mai ka lā, kahi haʻahaʻa haʻahaʻa. Ua hōʻike ʻia nā palapala ʻāina hou i hana ʻia e ka hui noiʻi i kahi puʻupuʻu kemika paʻakikī o ka lepo, kahi e pili kokoke ana i ka Lā, a ʻo nā mea i loaʻa ʻia ma laila ua noho kaʻawale mai ka hōkū ʻōpio.

ʻO Jupiter ka mea hoʻomaʻemaʻe nui

9. Hoʻohālikelike o ka Migrating Jupiter Theory

ʻO ka manaʻo i haʻi mua ʻia e pili ana i kahi ʻōpio ʻōpio ʻo Jupiter e wehewehe i ke kumu ʻaʻohe honua ma waena o ka Lā a me Mercury a no ke aha ka liʻiliʻi o ka honua kokoke i ka Lā. Ua hoʻokumu ʻia paha ke kumu o Jupiter ma kahi kokoke i ka Lā a laila ʻānai i ka ʻāina kahi i hana ʻia ai nā hōkū pōhaku (9). Hiki paha i ka ʻōpiopio ʻo Jupiter, i kona hele ʻana, lawe i kekahi o nā mea i hiki ke kūkulu i nā mea no nā hokele pōhaku, a hoʻolei i kekahi ʻāpana i ka lewa. No laila, paʻakikī ka hoʻomohala ʻana o nā papa honua i loko - no ka nele o nā mea maka., i kākau i ka ʻepekema honua ʻo Sean Raymond a me nā hoa hana ma kahi ʻatikala ma Malaki 5 online. i loko o ka Manawa Makahiki o ka Royal Astronomical Society.

Ua holo ʻo Raymond a me kāna hui i nā hoʻohālikelike kamepiula e ʻike i ka mea e hiki mai ana i loko ʻŌnaehana polūina he kino me ka nuipaa o ka Honua ekolu i loko o ka orbit o Mercury a laila neʻe aku ma waho o ka ʻōnaehana. Ua ʻike ʻia inā ʻaʻole e neʻe wikiwiki a lohi paha ia mea, hiki iā ia ke hoʻomaʻemaʻe i nā ʻāpana o loko o ka diski o ke kinoea a me ka lepo e hoʻopuni ana i ka Lā, a waiho wale i nā mea no ka hoʻokumu ʻana i nā hōkū pōhaku.

Ua ʻike pū ka poʻe noiʻi ua hiki i kahi ʻōpio ʻo Jupiter ke hana i ke kumu lua i kipaku ʻia e ka Lā i ka wā o ka neʻe ʻana o Jupiter. ʻO kēia nucleus ʻelua paha ka hua i hānau ʻia ai ʻo Saturn. Hiki i ka ʻumekaumaha o Jupiter ke huki i nā mea he nui i loko o ke kāʻei asteroid. Hoʻomaopopo ʻo Raymond e hiki i kēlā ʻano hiʻohiʻona ke wehewehe i ka hoʻokumu ʻia ʻana o nā meteorites hao, kahi i manaʻoʻiʻo ai ka nui o nā ʻepekema e pili kokoke i ka Lā.

Eia naʻe, i mea e neʻe ai kēlā proto-Jupiter i nā ʻāpana o waho o ka ʻōnaehana planetary, pono nui ka laki. Hiki i ka launa pū ʻana o ka umekaumaha me nā nalu ʻōniʻoniʻo i loko o ka diski e hoʻopuni ana i ka Lā ke hoʻoikaika i ka honua ma waho a ma loko o ka ʻōnaehana solar. ʻO ka wikiwiki, ka lōʻihi a me ke kuhikuhi e neʻe ai ka honua ma muli o nā nui e like me ka mahana a me ka nui o ka disk. Hoʻohana ʻo Raymond a me nā hoa hana i kahi diski maʻalahi loa, a ʻaʻohe ao kumu a puni ka lā.