KOKOA
Nui ko mākou galaxy. A ʻoiai mai loko mai he paʻakikī ke ʻike pono i ka lōʻihi o ke ana ʻana mai ka hopena a hiki i ka hopena, ʻōlelo ka manaʻo hope loa ma kahi o 100.000 mau makahiki māmā. Aia nō, ʻoi aku ka nui o nā aniani, a hiki i kēia manawa ua mālama ʻia ka moʻolelo nui e IC 1101, he monstrosity bona fide 3,9 miliona mau makahiki māmā.
Akā ʻo ia nō a hiki i kēia manawa. ʻAʻohe mea i manaʻo, ʻoiaʻiʻo, e kālailai me ka 'megagalaxy' 160 mau manawa ʻoi aku ka nui ma mua o ka ʻōlohelohe. ʻO kāna helu ʻo Alcyoneus, (e like me ka pilikua ikaika weliweli o nā moʻolelo Helene, ke keiki a Tartarus, ka hohonu, a me Gea, ka honua), e ʻike ʻo ia ma kahi o 3.000 miliona mau makahiki māmā a ʻaʻole e hoʻolōʻihi ʻia ma mua o 16,3 miliona mau kukui. makahiki lōʻihi.
ʻAʻole ʻike ka poʻe kilo hōkū i kekahi mea like me ia. ʻAʻole pono e ʻōlelo, ʻo ia ka galaxy nui loa i ʻike ʻia a hiki i kēia lā, ʻaʻohe mea i manaʻo pehea e hiki ai ke nui. E paʻi mua ʻia ka ʻike hoihoi ma ka 'Astronomy & Astrophysics', akā aia ke aʻo ʻana ma ka 'arXiv' preprint server.
He aniani lekiō weliweli
ʻO Alcyoneus kahi hiʻohiʻona nui o ka lekiō lekiō, me kahi lua ʻeleʻele nui ma kona kikowaena e ʻai ai i nā mea nui, e hoʻokuʻu ana i nā jet nui o ka plasma mai kona mau pou ma kahi kokoke i ka wikiwiki o ka māmā. ʻO nā Jets, ma hope o ka huakaʻi ʻana i kekahi mau miliona mau makahiki māmā, e hoʻopuehu ʻia e hana i kahi ʻano lobes a i ʻole nā ʻōpū e hoʻokuʻu i nā nalu lekiō. A pehea lā, ʻo nā Alcyoneus ka mea nui loa i ʻike ʻia i kēia manawa.
"Ua ʻike mākou - kākau nā mea noiʻi - ʻo ka hale ʻike nui loa i hana ʻia e kahi galaxy hoʻokahi: kahi aniani lekiō nunui me ka lōʻihi o kona lōʻihi e hana ana i 16,28 miliona mau makahiki māmā".
Ma lalo o ke alakaʻi ʻana a Martijn Oei, he kilo hōkū ma ka Leiden Observatory ma Netherlands, ua ʻike nā mea noiʻi i ka galaxy nunui a nānā i ka ʻikepili i hōʻiliʻili ʻia e ka LOFAR ʻulaʻula (Low Frequency Array) e hoʻopili ana i nā kilomika o nā telescope lekiō ma 52 mau wahi ma ʻEulopa. E ʻimi ana lākou i nā lobes lekiō nui a ʻike ʻole i nā ʻōhū nui ʻelua a Alcyoneus.
Ua like ia me ka galaxy maʻamau
ʻO ka mea kupanaha loa o nā mea a pau, ʻokoʻa kēlā mau lobes nunui ʻelua, ua like ke ʻano o Alcyoneus me kahi galaxy elliptical maʻamau, me ka nui like me ka 240.000 miliona mau lā, ʻo ia hoʻi, ʻo ka hapalua o ko ka Milky Way, kā mākou galaxy ponoʻī. . ʻO kona lua ʻeleʻele waena, me 400 miliona ka nui o ka lā, ʻaʻole ia kekahi o ka lua nui loa i ʻike ʻia (aia a hiki i hoʻokahi haneli ka nui). Hiki ke noʻonoʻo ʻia he liʻiliʻi no ka galaxy radio. A laila, pehea lā e hiki ai i kahi galaxy maʻamau ke hoʻāla i kahi hale nui?
"Ma waho aʻe o kāna geometry - kākau nā mea noiʻi i kā lākou ʻatikala - ʻo Alcyoneus a me kāna kikowaena galactic he mea maʻamau: ʻo ka nui o ka nui o ka luminosity haʻahaʻa haʻahaʻa, ʻoi aku ka haʻahaʻa o ka stellar mass a me ka nui o ka lua ʻeleʻele supermassive, ʻoiai like, me nā nā pūʻali lekiō nunui waena. No laila, ʻaʻole pono nā galaxies nui a i ʻole nā puka ʻeleʻele waena no ka ulu ʻana o nā pilikua nui."
I kēia manawa, ʻaʻole i hiki i ka hui o nā astronomers ke puka i waho o kā lākou kahaha, ʻoiai ua hōʻike mua lākou i kekahi mau wehewehe kūpono no ka 'gigantism' o Alcyoneus. ʻO kahi mea hiki ke loaʻa ka haʻahaʻa haʻahaʻa o ke kaiapuni o ka galaxy ma mua o ka mea maʻamau, e ʻae ana i kāna mau jet e hoʻonui i nā unahi like ʻole. A i ʻole, aia paha ʻo Alcyoneus i loko o kahi filament pūnaewele honua, kahi ʻano nui a ʻike ʻole ʻia o ke kinoea a me ka mea ʻeleʻele e hoʻopaʻa pū ai i nā galaxies. ʻO ka ʻoiaʻiʻo, ʻaʻohe mea i maopopo i kēia lā. A ke manaʻo nei nā mea noiʻi e hiki i nā haʻawina e hiki mai ana ke kōkua i ka hoʻoponopono ʻana i kēia puʻupuʻu galactic loa.
