Ma ke kiʻi waena-infrared hou i kiʻi ʻia e ka James Webb Space Telescope, ʻo ka Sombrero galaxy (ʻike ʻia ʻo Messier 104 a i ʻole M104 galaxy) ua ʻike ʻia e like me kahi pahu pana pua, ma kahi o ka pāpale Mekiko ākea Sombrero e like me ka mea i ʻike ʻia i ka mālamalama ʻike mua ʻia. nā kiʻi i lawe ʻia e Spitzer a me Hubble space telescopes.
ʻO ke kiʻi hou o Messier 104 (M104) galaxy (i ʻike nui ʻia ʻo Sombrero galaxy ma muli o kona ʻano like me ka pāpale Mekiko ākea ākea) i lawe ʻia e ka Mid-Infrared Instrument (MIRI) o James Webb Space Telescope (JWST) ua hāʻawi i ka ʻike hou. nā kikoʻī kūkulu o kona apo i waho a me ke kumu.
I ke kiʻi infrared hou, ʻaʻole ʻā ke kumu, akā, ʻike mākou i kahi disk i loko. ʻO keʻano o ka lepo ma ke apo o waho e hoʻoholo nuiʻia i ke kiʻi hou aʻikeʻia nā puʻupuʻu paʻakikī no ka manawa mua. He ʻokoʻa kēia me nā kiʻi māmā ʻike ʻia i kiʻi ʻia e Spitzer a me Hubble telescopes kahi e ʻālohilohi ai ke kumu ʻālohilohi o ka galaxy a ʻike ʻia ke apo o waho e like me ka pale.
Ma ke kiʻi hou ma ka waena infrared, ʻike ʻia ka galaxy e like me ka pana pua, ma kahi o ka pāpale Mekiko ākea Sombrero e like me ka mea i ʻike ʻia ma nā kiʻi māmā ʻike mua ʻia.
Me ka hoʻohana ʻana i ka ʻikepili MIRI, ua ʻike nā mea noiʻi i ka polycyclic aromatic hydrocarbons i loko o nā puʻupuʻu lepo ma ke apo o waho o ka galaxy Sombrero. ʻO ka loaʻa ʻana o ke kalapona (ʻo ia hoʻi, ke ʻano metala kiʻekiʻe) e hōʻike ana i ka loaʻa ʻana o nā ʻāpana hoku ʻōpio i ke apo i waho, akā naʻe, ʻaʻole kākoʻo ʻia kēia e nā ʻike. ʻO ka lua ʻeleʻele nui ma ke kikowaena o ka galaxy kahi nucleus galactic ikaika haʻahaʻa.
| ʻO nā hōkū mua ma ke ao holoʻokoʻa he ʻole-metala a haʻahaʻa loa. Kapa ʻia lākou i nā hōkū Pop III a i ʻole nā hōkū Population III. ʻO nā hōkū metala haʻahaʻa nā hōkū Pop II. Loaʻa i nā hōkū ʻōpio nā mea metala kiʻekiʻe a kapa ʻia ʻo "Pop I stars" a i ʻole nā hōkū metala lā. Me ka 1.4% metala kiʻekiʻe, he hōkū hou ka lā. Ma ka astronomy, ʻoi aku ke kaumaha ma mua o ka helium i manaʻo ʻia he metala. ʻO nā metala kemika ʻole e like me ka oxygen, nitrogen, etc. Hoʻonui ʻia nā hōkū i kēlā me kēia hanauna ma hope o ka hanana supernova. ʻO ka hoʻonui ʻana i ka ʻike metala i nā hōkū e hōʻike ana i ka ʻōpio. |
| (kahi ʻāpana mai Universe mua: ʻO ka Galaxy mamao loa "JADES-GS-z14-0" e hoʻokūkū i nā kumu hoʻohālike Galaxy. , ʻElepa ʻepekema). |
Hana ʻia ka ʻāpana o waho o ka galaxy i nā hōkū kahiko, ʻilihune metala. Eia nō naʻe, ua hōʻike mua ʻia nā ana metala ʻo Hubble (ʻo ia hoʻi, ka nui o nā mea i ʻoi aku ke kaumaha ma mua o ka helium i nā hōkū) i hōʻike ʻia i ka nui o nā hōkū waiwai nui i ka halo nui o Sombrero galaxy e hōʻike ana i nā hanauna o nā hōkū i loaʻa i nā hanana supernovae kūpilikiʻi ma waho o ka ʻāina. keia galaxy. ʻO ka maʻamau, loaʻa i ka halo o nā galaxia nā hōkū ʻilihune metala, akā ʻaʻole hōʻike ka halo o Sombrero galaxy i kahi hōʻailona o nā hōkū ʻilihune i manaʻo ʻia. ʻO Paradoxically, loaʻa iā ia nā hōkū waiwai metala.
ʻO ke aniani ʻo Sombrero kahi galaxy he 28 miliona mau makahiki māmā mai ka Honua ma ka hui hōkū ʻo Virgo. ʻAʻole ʻike ʻia e ka maka ʻōlohelohe, ua ʻike ʻia i ka makahiki 1781 e ka mea kilo hōkū Farani ʻo Pierre Méchain.
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E hoʻomaopopo ':
- NASA. Nūhou - Nā pāpale i ka Webb o NASA: ʻO Sombrero Galaxy Dazzles i ke kiʻi hou. Hoʻopuka ʻia 25 Nowemapa 2024. Loaʻa ma https://science.nasa.gov/missions/webb/hats-off-to-nasas-webb-sombrero-galaxy-dazzles-in-new-image/
- NASA. Ma waho aʻe o ka Brim, Hōʻike ʻo Sombrero Galaxy's Halo i nā wā i hala. Hoʻopuka ʻia 20 Pepeluali 2020. Loaʻa ma https://science.nasa.gov/missions/hubble/beyond-the-brim-sombrero-galaxys-halo-suggests-turbulent-past/
- NASA. Messier 104. Loaʻa ma https://science.nasa.gov/mission/hubble/science/explore-the-night-sky/hubble-messier-catalog/messier-104/
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