Hubble Ibona Spiral in Serpens

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Lokhu entsha NASA / ESA Hubble Space Telescope image sikhombisa galaxy enhle Kuvunguza eyaziwa ngokuthi PGC 54493, etholakala iKhima of Serpens (INyoka). Lolu Umthala siyingxenye cluster galaxy eye ufundwa izazi zezinkanyezi ukuhlola buyinto ethakazelisayo aziwa ngokuthi ebuthakathaka lensing adonsela phansi.

Lokhu umphumela, okubangwa ukusatshalaliswa engalingani of udaba (kuhlanganise esimnyama) kulo lonke Universe, Kuye iyahlaziwa via vo ezifana Hubble Medium Deep Survey. Esimnyama ingenye ngezimfihlakalo mkhulu yonke. It eziphatha kakhulu ehlukile kusukela udaba ezijwayelekile njengoba akusho bungakhiphi noma simunce kukhanya noma ezinye izinhlobo zamandla kagesi - kungakho igama elithi “dark.”

Nakuba singeke agcine esimnyama ngqo, siyazi ikhona. One piece ovelele zobufakazi ukhona kule ndaba bekhethelo njengoba laziwa “Inkinga Ukujikeleza galaxy.” Imithala ukushintshanisa ngesivinini enjalo futhi ngendlela yokuthi udaba ezejwayelekile yedwa - izinto esizibona - ngeke akwazi ukubamba kwabo ndawonye. Inani mass okuwukuthi “abalahlekile” batshengise kuyinto esimnyama, okuyinto kucatshangwa ukwenza up abanye 27 amaphesenti okuqukethwe ingqikithi Universe, amandla amnyama kanye udaba evamile abakha ukuphumula. PGC 55493 iye wafunda mayelana nomphumela aziwa ngokuthi cosmic Shearing. Lokhu kuyinto ababuthakathaka adonsela phansi lensing ngomphumela kubanga Ukuhlanekezelwa amancane in images of imithala ekude.

ESA / Hubble & NASA, Kuvuma: Judy Schmidt

Hubble ubheka Light and Dark in the Universe

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Lokhu entsha NASA / ESA Hubble Space Telescope image sikhombisa ezihlukahlukene ezithakazelisayo imihlola cosmic.

Ezungezwe izinkanyezi bright, elibhekile maphakathi engenhla ifreyimu sibona into encane young lezinkanyezi (YSO) Eyaziwa ngokuthi SSTC2D J033038.2 303212. Etholakala iKhima of noPerseus, le nkanyezi okwamanje isesigabeni isencane futhi namanje ukwakha ibe star ngokugcwele emandleni. Kule mbono kusuka Camera Hubble sika Okuthuthukisiwe for abadabuli(ACS) kubonakala ukuba ube ushemula murky of material Uvivinyo olunjengomlilo outwards futhi phansi, anezinhlaka by Ukuvutha bright of gas ukugeleza inkanyezi ngokwayo. Lokhu star elisafufusa empeleni lizungezwe disk eliqhakazile ezingqubuzanayo ezaziyaluzisa ezingokwenyama bazungeza njengoba yakha - a disc ukuthi sibona emaphethelweni-on ngombono wethu.

Nokho, le uyichashaza elincane bright is dwarfed by umakhelwane walo cosmic elibhekile phansi ifremu, a isixhobo of bright, wispy gas ezingqubuzanayo ezaziyaluzisa nxazonke njengoba ibonakala ezikhafula material amnyama out emkhathini. Ifu elikhanyayo kuyinto esigaxeni reflection eyaziwa ngokuthi [B77] 63, ifu Igesi Interstellar ukuthi is ukukhanya okuvela ezinkanyezini linamathele zingakapheli it. Kukhona empeleni inani lezinkanyezi bright phakathi [B77] 63, ephawuleka kakhulu ekushayweni-line star LkHA 326, futhi umakhelwane oseduze LZK 18.

Lezi izinkanyezi babasa up igesi ezungezile bese sculpting ibe ijamo wispy kubonakala kulesi image. Nokho, ingxenye esimangalisa kunazo yesithombe ibonakala umfudlana emnyama intuthu enqwabelanisa outwards kusuka [B77] 63 nezinkanyezi zalo - a esigaxeni omnyama obizwa Dobashi 4173. Mafu Dark kukhona amafu ngendlela emangalisayo aminyene ezibonakalayo. pitch-amnyama ezifihla nezimagqabhagqabha of sky emva kwabo, ezibonakala ukudala URips ezinkulu kanye nezixhobo eerily ezingenalutho sky. Izinkanyezi amabhadubhadu phezu kwalesi kobumnyama obedlulele ngempela amanga phakathi kwethu Dobashi 4173.

Credit: ESA / NASA

Supernova kubonakala Lights Two

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Imiphumela elimazayo of a enamandla supernova kuqhuma zembula ngokwabo ukuxubana olubucayi yokukhanya lefoni bese-X ray, njengoba kubonakala kulesi image evela NASA Spitzer Space Telescope no Chandra X-Ray Observatory, kanye European Space Agency sika XMM-Newton.

Ifu bubbly kuba i engaphumi shock wave, ezikhiqizwe a supernova ukuthi ngabe ngafakaza Emhlabeni 3,700 iminyaka edlule. The ngokwaso Insali, wabiza Puppis A, okhona 7,000 light-iminyaka away, futhi igagasi shock imayelana 10 light-iminyaka ngaphesheya.

Embaleni iyashintsha iyaphupha ibe kule image zembula ukuthi izakhiwo infrared kanye-X ray ukulandelela nomunye eduze. Afudumele othulini izinhlayiyana banesibopho iningi infrared yokukhanya yamaza, labelwa imibala abomvu futhi green kule mbono. Material ukufuthelana ngu supernova sika shock wave likhipha-X ray, okuyinto ezinemibala blue. Izifunda lapho amagesi infrared kanye-X ray uhlanganisa bathathe ndawonye on licace, ngaphezulu iyashintsha iyaphupha ibe amathoni.

Igagasi shock libonakala zikhanyise njalo njengoba slams zibe amafu ezungezile uthuli negesi ukuba bagcwalise isikhala Interstellar kulesifunda.

Kusukela kukhanya lefoni, izazi zezinkanyezi ziye athola eliningi isamba ngothuli esifundeni esilingana mayelana ingxenye yesine nenqwaba kwelanga lethu. Idatha eqoqwe kusuka spectrograph Spitzer sika infrared zembula indlela wave shock lephula ngaphandle the zintekenteke othulini okusanhlamvu ukuba agcwalise Isikhala ezungezile.

Ukuqhuma Supernova ziqhubekele Izakhi ezisindayo ukuthi anganikeza indaba raw okuyindawo izizukulwane izinkanyezi namaplanethi esizayo ngeke yakha. Ukutadisha indlela supernova Izinsalela ukwandisa emthaleni bese uxhumana neminye material inikeza izinkomba esibucayi zibe ngomsuka zethu siqu.
Idatha infrared kusuka Spitzer sika multiband imaging photometer (MIPS) at yamaza of 24 futhi 70 microns zihlinzekwa in eluhlaza abomvu. -X ray idatha kusuka XMM-Newton lokuwela nohlu energy of 0.3 kuya 8 kiloelectron volts kukhonjiswa blue.

Credit: NASA / ESA / JPL-Caltech / GSFC / IAFE