Video: Peb yuav txiav txim siab li cas hnub nyoog ntawm cov hnub qub?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov tseem ceeb, astronomers txiav txim siab hnub nyoog ntawm hnub qub los ntawm kev soj ntsuam lawv spectrum, luminosity thiab motionthrough space. Lawv siv cov ntaub ntawv no kom tau ib tug lub hnub qub profile, thiab ces lawv sib piv cov hnub qub rau cov qauv uas qhia dab tsi hnub qub yuav tsum zoo li ntawm ntau lub ntsiab lus ntawm lawv cov evolution.
Ua li no, Xim ntawm lub hnub qub pab nrhiav nws lub hnub nyoog li cas?
Cov xim ntawm a hnub qub feem ntau qhia tias a lub hnub qub kub, thiab nws tseem tuaj yeem qhia qhov hnub qub sage . Chav Kawm O hnub qub , uas yog xiav hauv xim , yog cov kub tshaj plaws, thiab chav kawm M hnub qub , uas yog liab hauv xim , yog qhov txias tshaj plaws. Qhov kub tshaj qhov hnub qub , ceev nws particles txav thiab lub zog ntau lawv yradiate.
Cov kws tshawb fawb suav hnub qub li cas? Cov kws tshawb fawb siv me me ntawm qhov chaw (cia hais 1 thib ob ntawm arc). Lawv saib nws ua tib zoo nrog lub koob yees duab muaj zog, thiab suav tag nrho cov hnub qub thiab galaxies lawv pom. Tom qab ntawd, lawv ntxiv tus lej ntawd ntawm qhov chaw pom tag nrho.
Kuj Paub, cov kws tshawb fawb ua li cas txiav txim siab qhov kub ntawm lub hnub qub?
Txog qhov uas Stellar spectra zoo li blackbodies, lub kub ntawm lub hnub qub tau kuj yuav ntsuas damazingly raug los ntawm kev sau cov brightness nyob rau hauv ob txawvfilters. Kom tau ib tug stellar kub : Ntsuas qhov ci ntawm a hnub qub los ntawm ob lub lim dej thiab sib piv kev ntsuas ntawm lub teeb liab rau xiav.
Cov hnub qub tuag li cas?
Hnub qub tuag vim lawv tso lawv cov roj nuclear. Loj heev hnub qub siv lawv cov roj hydrogen sai, tab sis kub txaus los fuse cov ntsiab lus hnyav xws li heliumand carbon. Thaum tsis muaj roj tshuav, lub hnub qub collapsesand cov txheej txheej explode raws li ib tug 'supernova'.
Pom zoo:
Yam khoom twg feem ntau txiav txim siab seb lub hnub qub loj lossis lub hnub qub supergiant yuav tsim?
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