Esithombeni esisha esimaphakathi ne-infrared esithathwe i-James Webb Space Telescope, umthala we-Sombrero (owaziwa ngobuchwepheshe ngokuthi i-Messier 104 noma i-M104 galaxy) ubonakala njengethagethi elicibishelwe, esikhundleni sesigqoko esinompheme obanzi sase-Mexican i-Sombrero njengoba sasivela ekukhanyeni kwangaphambili. izithombe ezithathwe izibonakude ze-Spitzer kanye ne-Hubble space.
Isithombe sakamuva se-Messier 104 (M104) galaxy (eyaziwa kakhulu ngokuthi i-Sombrero galaxy ngenxa yokufana nesigqoko sase-Mexican esinompheme obanzi) esithathwe i-Mid-Infrared Instrument (MIRI) ye-James Webb Space Telescope (JWST) sinikeze ukuqonda okusha mayelana imininingwane yesakhiwo seringi yayo yangaphandle kanye nomnyombo.
Esithombeni esisha se-infrared, umongo awukhanyi, Kunalokho, sibona idiski elingaphakathi elibushelelezi. Imvelo yothuli eduze nendandatho yangaphandle ixazululwe kakhulu emfanekisweni omusha futhi ama-clumps ayinkimbinkimbi abonakala okokuqala. Lokhu kuphambene nezithombe zokukhanya ezibonakalayo ezithathwe ngaphambili izibonakude ze-Spitzer kanye ne-Hubble lapho umongo okhazimulayo womthala ukhanya futhi indandatho yangaphandle ibonakala ibushelelezi njengengubo.
Esithombeni esisha ebangeni elimaphakathi ne-infrared, umthala ubonakala njengethagethi yokucibishela, esikhundleni sesigqoko esinompheme obanzi sase-Mexican i-Sombrero njengoba sibonwe ezithombeni ezikhanyayo zangaphambilini.
Besebenzisa idatha ye-MIRI, abacwaningi bathole ama-polycyclic ama-hydrocarbon anephunga elimnandi othulini oluhambisana nendandatho yangaphandle yomthala we-Sombrero. Ukuba khona kwekhabhoni (okungukuthi, i-metallicity ephezulu) iphakamisa ukuba khona kwezifunda zokwakheka kwezinkanyezi ezisencane iringi yangaphandle, nokho lokhu akusekelwa ukubhekwa. Imbobo emnyama enkulukazi emaphakathi nomthala iyinucleus ye-galactic ekhanya kancane.
| Izinkanyezi zokuqala endaweni yonke zinensimbi eyiziro noma zinensimbi ephansi kakhulu. Abizwa ngezinkanyezi ze-Pop III noma izinkanyezi ze-Population III. Izinkanyezi zensimbi ephansi ziyizinkanyezi ze-Pop II. Izinkanyezi ezisencane zinensimbi ephezulu futhi zibizwa ngokuthi “izinkanyezi ze-Pop I” noma izinkanyezi zensimbi yelanga. Ngokuqhathaniswa ne-metallicity ephezulu engu-1.4%, ilanga liyinkanyezi yakamuva. Ku-astronomy, noma iyiphi into esindayo kune-helium ibhekwa njengensimbi. Amakhemikhali angewona ama-metal njengomoya-mpilo, i-nitrogen njll ayizinsimbi esimweni se-cosmological. Izinkanyezi zithola insimbi inothiswa esizukulwaneni ngasinye kulandela umcimbi we-supernova. Ukwanda kokuqukethwe kwensimbi ezinkanyezini kubonisa ubudala obuncane. |
| (ingcaphuno evela ku I-Early Universe: I-Galaxy Ekude Kakhulu “JADES-GS-z14-0″ Inselele Amamodeli Okwakhiwa Kwe-Galaxy , Isayensi YaseYurophu). |
Isifunda esingaphandle somthala ngokuvamile senziwa ngezinkanyezi ezindala, ezintula insimbi. Nokho, izilinganiso ze-metallicity zikaHubble (okungukuthi, ubuningi bezakhi ezisindayo kune-helium ezinkanyezini) ezenziwe ngaphambili zabonisa inqwaba yezinkanyezi ezinothe ngensimbi emkhathini omkhulu womthala we-Sombrero okuphakamisa ukuthi izizukulwane zezinkanyezi kungenzeka zibe nezinxushunxushu ze-supernovae endaweni engaphandle lomthala. Imvamisa, i-halo yemithala inezinkanyezi ezintula insimbi, kodwa i-halo yomthala we-Sombrero ayibonisi noma yiluphi uphawu lwezinkanyezi ezilindelekile ezintula insimbi. Okuxakayo ukuthi inezinkanyezi ezinothe ngensimbi.
Umthala we-Sombrero umthala ozungezayo osendaweni eqhele ngeminyaka yokukhanya eyizigidi ezingama-28 ukusuka eMhlabeni kumlaza we-Virgo. Ayibonakali ngeso lenyama, yatholwa ngo-1781 isazi sezinkanyezi saseFrance uPierre Méchain.
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References:
- NASA. Izindaba - Sithuthele ku-Webb ye-NASA: I-Sombrero Galaxy Dazzles esithombeni Esisha. Kuthunyelwe ngomhla ka-25 Novemba 2024. Itholakala e- https://science.nasa.gov/missions/webb/hats-off-to-nasas-webb-sombrero-galaxy-dazzles-in-new-image/
- NASA. Ngale Kwe-Brim, I-Halo Ye-Sombrero Galaxy Iphakamisa Isiphithiphithi Esidlule. Kuthunyelwe ngomhla ka-20 February 2020. Itholakala e- https://science.nasa.gov/missions/hubble/beyond-the-brim-sombrero-galaxys-halo-suggests-turbulent-past/
- NASA. Messier 104. Itholakala e https://science.nasa.gov/mission/hubble/science/explore-the-night-sky/hubble-messier-catalog/messier-104/
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