I-James Webb Space Telescope (JWST) ithathe izithombe eziseduze ne-infrared nemaphakathi ne-infrared zesifunda esenza inkanyezi i-NGC 604, etholakala eduze kwamakhelwane wasekhaya. galaxy. Izithombe zinemininingwane eminingi kunanini ngaphambili futhi zinikeza ithuba eliyingqayizivele lokufunda ukugcwala okuphezulu kwezinkanyezi ezinkulu, ezisencane emithala engomakhelwane ekhaya lethu. galaxy, iMilky Way.
Ukuhlushwa okuphezulu kwe-massive izinkanyezi ebangeni eliseduze, kusho ukuthi i-NGC 604 eyenza inkanyezi inikeza ithuba eliyingqayizivele lokufunda izinkanyezi ekuqaleni kwempilo yazo. Kwesinye isikhathi, ikhono lokufunda izinto eziseduze (njengesifunda esenza inkanyezi i-NGC 604) ngokulungiswa okuphezulu kakhulu kungasiza ukuqonda kangcono izinto ezikude kakhulu.
Ukubuka okuseduze kwe-infrared:
Lesi sithombe se-NGC 604 sithathwe yi-NIRCam (Near-Infrared Camera) yase I-JWST.
Amathenda nezigaxa zokuphuma ezibonakala zibomvu ngokugqamile, ezisuka ezindaweni ezibukeka sengathi zicwebile, noma amabhamuza amakhulu ku-nebula yizici eziphawuleka kakhulu zesithombe esiseduze ne-infrared. Umoya we-Stellar ovela kwabancane abakhanyayo nabashisa kakhulu izinkanyezi baye baqopha le migodi, kuyilapho imisebe ye-ultraviolet ikhipha igesi ezungezile. Le hydrogen ene-ionized ibonakala njengokukhanya kwesipoki okumhlophe nokuluhlaza okwesibhakabhaka.
Imigqa egqamile, enombala osawolintshi isho ukuba khona kwama-molecule asuselwa kukhabhoni aziwa ngokuthi i-polycyclic aromatics hydrocarbons, noma ama-PAH. Le nto idlala indima ebalulekile ku-interstellar medium kanye nokwakhiwa kwezinkanyezi kanye amaplanethi, kodwa umsuka wayo uyimfihlakalo.
Ubomvu obujulile busho i-hydrogen yamangqamuzana njengoba umuntu ehambela kude nokususa uthuli ngokushesha. Le gesi epholile iyindawo eyinhloko inkanyezi ukwakheka.
Ukulungiswa okuhle kakhulu kuhlinzeka ngemininingwane ezicini ebezivele zingahlobene namafu amakhulu. Isibonelo, emfanekisweni weWebb, kunezinkanyezi ezimbili ezikhanyayo, ezincane eziqopha izimbobo othulini ngaphezu kwe-nebula emaphakathi, ezixhunywe ngegesi ebomvu esakazwayo. Emfanekisweni wokukhanya obonakalayo kusuka hubble Space I-Telescope (HST), lezi zivele njengama-splotches ahlukene.
Ukubuka kwe-Mid-infrared:
Lesi sithombe se-NGC 604 nge-MIRI (Mid-Infrared Instrument) ye I-JWST.
Kukhona izinkanyezi ezimbalwa ngokuphawulekayo ekubukeni kwe-infrared emaphakathi ngenxa yokuthi izinkanyezi ezishisayo zikhipha ukukhanya okuncane kakhulu kulawa maza wamaza, kuyilapho amafu amakhulu egesi epholile nothuli kukhanya.
Ezinye zezinkanyezi ezibonwa kulesi sithombe, ezingaphansi kwendawo ezungezile galaxy, ama-supergiant abomvu - izinkanyezi ezipholile kodwa ezinkulu kakhulu, izikhathi ezingamakhulu ubukhulu beLanga lethu. Ukwengeza, eminye imithala engemuva evela esithombeni se-NIRCam nayo iyafiphala.
Esithombeni se-MIRI, amathenda aluhlaza okwesibhakabhaka akhombisa ukuba khona kwama-PAH.
Ukubuka kwe-infrared emaphakathi futhi kukhombisa umbono omusha wemisebenzi ehlukahlukene futhi eguquguqukayo yalesi sifunda.
Isifunda esakha inkanyezi i-NGC 604
Isifunda esakha inkanyezi i-NGC 604 silinganiselwa eminyakeni eyizigidi ezi-3.5 ubudala. Ifu lamagesi akhazimulayo lidlulela eminyakeni engaba ngu-1,300 2.73 yokukhanya. Itholakala ebangeni elingama-light-year ayizigidi ezingu-XNUMX e-Triangulum eseduze galaxy, lesi sifunda sikhulu futhi sinezinkanyezi eziningi ezisanda kwakhiwa. Izifunda ezinjalo ziyizinhlobo ezincane zemithala ekude kakhulu "ye-starburst", ethole izinga eliphezulu kakhulu lokwakheka kwezinkanyezi.
Ezimvilophini zayo zegesi ezinothuli, kunezinhlobo ezingaphezu kuka-200 zezinkanyezi ezishisa kakhulu, ezinkulu kakhulu, zonke zisezigabeni zokuqala zokuphila kwazo. Lezi zinhlobo zezinkanyezi ziyizinhlobo ze-B kanye nezinhlobo ze-O, ezokugcina ezingaba izikhathi ezingaphezu kwe-100 ubukhulu beLanga lethu.
Kuyivelakancane ukuthola lokhu kuhlanganiswa kwawo endaweni eseduze indawo yonke. Eqinisweni, asikho isifunda esifanayo ngaphakathi kwe-Milky Way yethu galaxy.
Lokhu kuqoqwa kwezinkanyezi ezinkulu, kuhlanganiswe nebanga eliseduze, kusho ukuthi i-NGC 604 inikeza izazi zezinkanyezi ithuba lokutadisha lezi zinto ngesikhathi esithakazelisayo ekuqaleni kwempilo yazo. Kwesinye isikhathi, ikhono lokufunda izinto eziseduze njengesifunda esenza inkanyezi i-NGC 604 ngokulungiswa okuphezulu kakhulu kungasiza ukuqonda kangcono izinto ezikude kakhulu.
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References:
I-Space Telescope Science Institute (STScI) 2024. Ukukhishwa kwabezindaba - Ukulunguza ku-Tendrils ye-NGC 604 nge-NASA's Webb. 09 March 2024. Itholakala ku https://webbtelescope.org/contents/news-releases/2024/news-2024-110.html
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