Kumfanekiso omtsha ophakathi kwe-infrared othathwe nguJames Webb Space Telescope, umnyele weSombrero (owaziwa ngokuba yi-Messier 104 okanye uM104 galaxy) ubonakala ngathi ujolise ekutolweni, endaweni yomnqwazi obanzi waseMexico iSombrero njengoko wawuvela ekukhanyeni kwangaphambili. imifanekiso ethathwe Spitzer kunye Hubble space telescopes.
Umfanekiso wakutsha nje we-Messier 104 (M104) galaxy (eyaziwa kakhulu njengeSombrero galaxy ngenxa yokufana kwayo nomnqwazi obanzi waseMexican) othathwe yiMid-Infrared Instrument (MIRI) kaJames Webb Space Telescope (JWST) inike ulwazi olutsha iinkcukacha zesakhiwo ring yayo yangaphandle kunye core.
Kumfanekiso omtsha we-infrared, i-core ayikhanyi, Endaweni yoko, sibona idiski yangaphakathi egudileyo. Ubume bothuli ecaleni kwendandatho yangaphandle buxazululwe kakhulu kumfanekiso omtsha kwaye i-clumps eyinkimbinkimbi ibonwa okokuqala. Oku kuchasene nemifanekiso yokukhanya ebonakalayo ethathwe ngaphambili ziiteleskopu zikaSpitzer kunye neHubble apho umbindi womnyele ukhazimla kwaye umsesane ongaphandle ubonakala ugudile njengengubo.
Kumfanekiso omtsha kuluhlu oluphakathi kwe-infrared, umnyele ubonakala ngathi ujolise ekutolweni, endaweni yomnqwazi obanzi waseMexico iSombrero njengoko wawubonwa kwimifanekiso yokukhanya ebonakalayo yangaphambili.
Besebenzisa idatha ye-MIRI, abaphandi bafumanisa ii-polycyclic ezinevumba elimnandi kwi-hydrocarbons eluthulini kunye nomsesane wangaphandle wegalaksi yeSombrero. Ubukho bekhabhoni (okt, high metallicity) bucebisa ubukho bemimandla yokwakheka kweenkwenkwezi ezisencinci kwiringi yangaphandle, nangona kunjalo oku akuxhaswanga luqwalaselo. Umngxuma omnyama ogqwesileyo kumbindi womnyele yinucleus yegalaksi ekhanyayo ephantsi.
| Iinkwenkwezi zokuqala kwindalo iphela zinentsimbi enguziro okanye zinesinyithi esiphantsi kakhulu. Babizwa ngokuba ziinkwenkwezi zePop III okanye iinkwenkwezi zePopulation III. Iinkwenkwezi ezisezantsi zentsimbi ziinkwenkwezi zePop II. Iinkwenkwezi ezincinci zinemixholo yentsimbi ephezulu kwaye zibizwa ngokuba yi "Pop I stars" okanye iinkwenkwezi zentsimbi yelanga. Ngomgangatho ophezulu we-1.4% wesinyithi, ilanga yinkwenkwezi yakutshanje. Kwi-astronomy, nayiphi na into enzima kune-helium ithathwa njengesinyithi. Iikhemikhali ezingezizo iintsimbi ezifana neoksijini, initrogen, njl.njl zisinyithi ngokwemeko yecosmological. Iinkwenkwezi zifumana isinyithi kwisizukulwana ngasinye emva kwesiganeko se-supernova. Ukwandisa umxholo wesinyithi kwiinkwenkwezi kubonisa ubudala obuncinane. |
| (isicatshulwa esisuka Indalo yamandulo: Eyona Galaxy ikude “iJADES-GS-z14-0″ imiceli mngeni yeeModeli zoKwakha zeGalaxy , iScientific European). |
Ummandla ongaphandle womnyele wenziwa ziinkwenkwezi ezindala, ezihlwempuzekileyo. Nangona kunjalo, imilinganiselo yesinyithi kaHubble (oko kukuthi, ubuninzi bezinto ezisindayo kunehelium ezinkwenkwezini) eziqhutywe ngaphambili zabonisa ubuninzi beenkwenkwezi ezityebile ngesinyithi kwihalo enkulu yomnyele weSombrero ebonisa ukuba izizukulwana zeenkwenkwezi zinokuba ziye zatyhubela iziphithiphithi zeziganeko ze-supernovae kummandla ongaphandle lo mnyele. Ngokwesiqhelo, i-halo yeminyele ineenkwenkwezi ezihlwempuzekileyo, kodwa i-halo ye-Sombrero galaxy ayibonakalisi naluphi na uphawu lweenkwenkwezi ezilindelekileyo zesinyithi. Okumangalisayo kukuba, ineenkwenkwezi ezinesinyithi.
Umnyele weSombrero ngumnyele ojikelezayo ome kwizigidi ezingama-28 zokukhanya kweminyaka ukusuka eMhlabeni kwiqela leenkwenkwezi zeVirgo. Ayibonakali ngeso lenyama, yafunyanwa ngo-1781 sisazi ngeenkwenkwezi saseFransi uPierre Méchain.
***
Iingxelo:
- NASA. Iindaba-Iminqwazi ye-NASA's Webb: I-Sombrero Galaxy Dazzles kuMfanekiso oMtsha. Ithunyelwe nge-25 Novemba 2024. Ifumaneka apha https://science.nasa.gov/missions/webb/hats-off-to-nasas-webb-sombrero-galaxy-dazzles-in-new-image/
- NASA. Ngaphaya kwe-Brim, i-Sombrero Galaxy's Halo icebisa iNdubedube yexesha elidlulileyo. Ithunyelwe nge-20 kaFebruwari 2020. Ifumaneka apha https://science.nasa.gov/missions/hubble/beyond-the-brim-sombrero-galaxys-halo-suggests-turbulent-past/
- NASA. Messier 104. Ifumaneka e https://science.nasa.gov/mission/hubble/science/explore-the-night-sky/hubble-messier-catalog/messier-104/
***
