Ukuvela izinkanyezi - giant elibomvu

giant Olubomvu supergiant - yigama isikhala izinto amagobolondo enwetshiwe futhi likhanya ngendlela efanayo okusezingeni eliphezulu. Basonta ngasekupheleni amakilasi Spectral K futhi M. radii yabo idlule amakhulu libalele izikhathi. Emisebeni esiphezulu izinkanyezi ebangela esifundeni obomvu kanye infrared bohlu. On Hertzsprung- - Russell giant elibomvu engaphezulu main umugqa ukulandelana, abo ngokuphelele ezidlula kuyahlukahluka kancane ngenhla zero noma value ezimbi.

Le ndawo inkanyezi esinjalo idlula ilanga endaweni okungenani 1500 izikhathi, futhi ngenkathi ubukhulu bayo imayelana izikhathi 40 ngaphezulu. Njengoba umehluko inani eliphelele ukuze inkanyiso yethu imayelana ezinhlanu, kuvela ukuthi lo mdondoshiya obomvu likhipha kayikhulu ngaphezulu ukukhanya. Kodwa ukubanda kakhulu. lokushisa Solar kabili ukusebenza giant elibomvu, futhi ngenxa yalokho iyunithi surface area ukukhanya uhlelo lwethu ngalinye likhipha ukukhanya ngezinye izikhathi eziyishumi nesithupha ngaphezulu.

umbala Inkanyezi ebonakalayo lincike lokushisa kwamanzi. Ilanga Lethu ukufuthelana kuze emhlophe futhi ubukhulu elincane, ngakho-ke libizwa ophuzi yemifino. izinkanyezi ezipholile ukukhanya orange futhi ebomvu. Inkanyezi ngayinye inqubo yokuziphendukela kwemvelo yayo ngifinyelele lokugcina amakilasi Spectral futhi abe giant elibomvu ngezigaba ezimbili ukuthuthukiswa. Lokhu kwenzeka ngesikhathi isinyathelo nucleation ukuze inkanyezi noma esigabeni sokugcina kwemvelo. Ngalesi sikhathi, i-giant elibomvu uqala ezishisa kakhulu zikhipha izinhlayiyana amandla amandla abo okudonsa ezikhishwe uma isibambo.

Njengoba inkanyezi onomfutho, izinga lokushisa yayo iyakhula. Ngesikhathi esifanayo, ngenxa ukuncipha usayizi ebusweni, ngezinye izikhathi uwe likhanya ngendlela efanayo. She phoqoka. Uma leli "abasha" giant libomvu, uzogcina ezibilinini zakhe ukuqala ukusabela iArmagedoni zamagama ane-helium hydrogen. Ngemva kwalokho, inkanyezi abasha izohamba ukulandelana main. Esidala inkanyezi nesimo esihlukile. Ezigabeni kamuva yokuziphendukela kwemvelo hydrogen e izibani zangaphakathi fade ngokuphelele. Ngemva kwalokho inkanyezi eshiya ukulandelana main. Ngokwe Hertzsprung - Russell, wathuthela supergiants futhi imidondoshiya abomvu. Kodwa ngaphambi kokuqhubeka kulesi sigaba, sidlule isinyathelo Lesisemkhatsini - subgiant.

Subgiants ngokuthi izinkanyezi nucleus elalingakaze saphela hydrogen Fusion ukusabela, kodwa ukushiswa helium ongakabi usuqalile. Lokhu kwenzeka ngoba ikhenela akwanele sekuqala ukufudumala. Isibonelo salokhu kungaba subgiant Arthur, elise umlaza Boötis. He is i orange YONKE indawo nge sobala ezidlula -0,1. Itholakala kude eLangeni imayelana 36 - 38 iminyaka ukukhanya. Ibuke kungaba ukuthi aseNyakatho Nenkabazwe ngoMeyi, uma ubheka ngqo eningizimu. Arthur ubukhulu izikhathi 40 welanga.

Yellow ilanga yemifino liyinkanyezi ngokulinganiswa ayemncane. yobudala wayo kulinganiselwa khona ukuthi iminyaka 4,57 bhiliyoni ubudala. On ukulandelana main, it zisazohlala iminyaka engaba yizigidi eziyizinkulungwane 5. Kodwa ososayensi bakwazi belingisa emhlabeni lapho ilanga - giant ebomvu. Ubukhulu balo luyokhula 200-nesibaya wafinyelela Umhlaba orbit, oqothulayo kwakukuqeda Mercury ne Venus. Yiqiniso, ukuphila ngalesi sikhathi engasakwazi. Kulesi sigaba, ilanga izothatha cishe eminye iminyaka ezingu-100, ngemva kwalokho-ke uyoba esigaxeni kwamaplanethi , bese kuba a umboniso wezinsiza.