A cikin sabon hoton tsakiyar infrared wanda James Webb Space Telescope ya ɗauka, Sombrero galaxy (wanda aka fi sani da Messier 104 ko M104 galaxy) ya bayyana kamar maƙasudin maharba, maimakon faffadan hular Mexica mai faɗin Sombrero kamar yadda ya bayyana a farkon haske mai gani. hotunan da Spitzer da na'urar hangen nesa na Hubble suka ɗauka.
Hoton kwanan nan na Messier 104 (M104) galaxy (wanda aka fi sani da Sombrero galaxy saboda kamanceceniya da hular Mexico mai fadi) wanda Cibiyar Mid-Infrared Instrument (MIRI) na James Webb Space Telescope (JWST) ya ɗauka ya ba da sabon haske game da. cikakkun bayanai na tsarin zobensa na waje da ainihin.
A cikin sabon hoton infrared, ainihin ba ya haskakawa, maimakon haka, muna ganin faifan ciki mai santsi. Halin ƙurar da ke tare da zoben waje yana da yawa a cikin sabon hoton kuma ana ganin ƙugiya masu rikitarwa a karon farko. Wannan ya bambanta da hotunan haske da ake iya gani a baya da Spitzer da na'urar hangen nesa na Hubble suka ɗauka a cikin sahun gaba na duniyar galaxy yana haskakawa kuma zoben waje ya bayyana santsi kamar bargo.
A cikin sabon hoton da ke tsakiyar kewayon infrared, galaxy ya bayyana kamar maƙasudin maharba, maimakon faffadan hular Mexica mai faɗin Sombrero kamar yadda aka gani a hotunan haske da aka gani a baya.
Yin amfani da bayanan MIRI, masu binciken sun gano polycyclic aromatic hydrocarbons a cikin kurar ƙura tare da zoben waje na Sombrero galaxy. Kasancewar carbon (watau babban ƙarfin ƙarfe) yana nuna kasancewar yankunan samari tauraro a cikin zobe na waje, duk da haka wannan baya samun goyan bayan abubuwan lura. Babban ramin baki mai girma a tsakiyar galaxy ƙaramin haske ne mai aiki na galactic tsakiya.
Taurari na farko a sararin samaniya suna da sifili-karfe ko ƙananan ƙarfe. Ana kiran su taurarin Pop III ko taurarin Population III. Ƙananan taurarin ƙarfe sune taurarin Pop II. Taurari matasa suna da babban abun ciki na ƙarfe kuma ana kiran su "Pop I stars" ko taurarin ƙarfe na rana. Tare da ingantacciyar ƙarfin 1.4%, rana tauraro ce ta kwanan nan. A ilmin taurari, duk wani abu da ya fi helium nauyi ana ɗaukarsa ƙarfe ne. Chemical wadanda ba karafa kamar oxygen, nitrogen da dai sauransu su ne karafa a cikin cosmological mahallin. Taurari suna samun wadatar ƙarfe a kowane tsara bayan taron supernova. Ƙarfafa abun ciki na ƙarfe a cikin taurari yana nuna ƙarami. |
(wani sashi daga Farkon Universe: Mafi Nisa Galaxy "JADES-GS-z14-0" yana ƙalubalantar Samfuran Galaxy , Kimiyyar Turai). |
Yankin waje na galaxy yawanci an yi shi da tsofaffi, taurari marasa ƙarfi. Koyaya, ma'aunin ƙarfe na Hubble (watau yawan abubuwan da suka fi ƙarfin helium a cikin taurari) da aka gudanar a baya sun nuna tarin taurari masu arziƙin ƙarfe a cikin sararin halo na Sombrero galaxy yana nuna cewa tsararrun taurari na iya fuskantar rikice-rikice na supernovae a cikin yankin waje. wannan galaxy. Yawanci, halo na taurari yana da taurari marasa ƙarfi, amma halo na Sombrero galaxy da kyar ke nuna wata alama ta taurarin matalauta da ake sa ran. Abin takaici, yana da taurari masu arzikin ƙarfe.
Sombrero galaxy shine karkataccen galaxy wanda ke da nisan shekaru miliyan 28 daga Duniya a cikin ƙungiyar taurarin Virgo. Ba a iya ganin ido ba, an gano shi a shekara ta 1781 ta wani masanin falaki na Faransa Pierre Méchain.
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References:
- NASA. Labarai - Hatsi zuwa Gidan Yanar Gizo na NASA: Sombrero Galaxy Dazzles a Sabon Hoto. An buga 25 Nuwamba 2024. Akwai a https://science.nasa.gov/missions/webb/hats-off-to-nasas-webb-sombrero-galaxy-dazzles-in-new-image/
- NASA. Bayan Haɓaka, Sombrero Galaxy's Halo Yana Ba da Shawarar Tashin hankali da Ya gabata. An buga 20 Fabrairu 2020. Akwai a https://science.nasa.gov/missions/hubble/beyond-the-brim-sombrero-galaxys-halo-suggests-turbulent-past/
- NASA. Messier 104. Akwai a https://science.nasa.gov/mission/hubble/science/explore-the-night-sky/hubble-messier-catalog/messier-104/
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