Cov hnub qub twg tau tawm ntawm qhov tseem ceeb?
Cov hnub qub twg tau tawm ntawm qhov tseem ceeb?

Video: Cov hnub qub twg tau tawm ntawm qhov tseem ceeb?

Video: Cov hnub qub twg tau tawm ntawm qhov tseem ceeb?
Video: Plab Plab Ntswg..(Pluav Pluav Ntswg) Maiv Twm New Song 2023-2024 2024, Hlis ntuj nqeg
Anonim

Qhov Kawg ntawm Main Sequence

Qhov loj, txias hnub qub nyob rau sab xis ntawm daim duab H-R yog hnub qub uas muaj tsis ntev los no sab laug lub ntsiab ib ntus . Hauv qhov nruab nrab hnub qub , zoo li peb lub hnub, lub siab los ntawm lub ntiajteb txawj nqus thawb sab hauv ua rau latent hydrogen nyob rau hauv lub plhaub txheej txheej ntawm lub hnub qub fuse rau helium.

Kuj paub, cov hnub qub twg tawm ntawm qhov tseem ceeb ua ntej?

Qhov loj tshaj plaws hnub qub yuav tawm ntawm qhov tseem ceeb ua ntej , ua raws li hauv ib ntus los ntawm hnub qub ntawm puas tsawg pawg.

Ib sab saum toj no, cov hnub qub puas txav raws cov kab ke tseem ceeb? Ib yam uas yuav tsum nco ntsoov yog qhov ntawd hnub qub ua tsis muaj kev vam meej nqes ntawm Main sequence ntawm sab laug mus rau sab xis ntawm ib HR diagram. Lawv mus nrog nws, tab sis ntawm ib qho chaw lawv yeej 'dhia' tawm, thaum cov hydrogen khiav tawm. Lawv mus qhov twg nyob ntawm ntawm lawv loj thiab muaj pes tsawg leeg.

Tom qab ntawd, ua li cas rau cov hnub qub thaum lawv tawm ntawm lub ntsiab lus sib lawv liag?

Tawm hauv Main Sequence Thaum twg hnub qub khiav tawm ntawm hydrogen, lawv pib fuse helium hauv lawv cov cores. Qhov no yog thaum lawv tawm ntawm lub ntsiab ua ntu zus . Loj heev hnub qub ua liab supergiants, thiab ces evolve los ua xiav supergiants. Thaum twg uas tshwm sim , cov txheej txheej sab nrauv ntawm lub hnub qub poob rau hauv lub hauv paus.

Dab tsi yog lub neej ntawm 10 hnub qub hnub qub ntawm lub ntsiab lus?

Lifespans rau lub hnub qub tseem ceeb muaj ntau yam. Hos peb lub hnub yuav siv 10 billion xyoo dhau los lub ntsiab ib ntus , ib- pawg , kaum hnub ci - pawg (10 MHnub) hnub qub yuav tsuas kav 20 lab xyoo (2.0 × 10 7 xyoo) nyob rau hauv lub ntsiab ib ntus . A hnub qub nrog ib nrab xwb pawg ntawm Sun tuaj yeem siv 80 billion xyoo rau ntawm lub ntsiab ib ntus.

Pom zoo: