Dab tsi yog qhov tseem ceeb ntawm kev sib tw quizlet?
Dab tsi yog qhov tseem ceeb ntawm kev sib tw quizlet?

Video: Dab tsi yog qhov tseem ceeb ntawm kev sib tw quizlet?

Video: Dab tsi yog qhov tseem ceeb ntawm kev sib tw quizlet?
Video: Koj Hais Dab Tsi?/Suabci Kwm & Ab Meej Ham/Official MV 2023 2024, Kaum ib hlis
Anonim

Dab tsi yog lub ntsiab - kev sib raug zoo ? Ib txoj hauv kev los ntsuas qhov kev ncua deb mus rau ib pawg ntawm cov hnub qub los ntawm kev sib piv qhov pom tseeb qhov ci ntawm pawg lub ntsiab ib ntus nrog tus qauv ntawd lub ntsiab ib ntus.

Tsuas yog li ntawd, dab tsi yog qhov tseem ceeb sib lawv liag?

Main sequence haum koom nrog haum ntawm ib pawg lub ntsiab ib ntus mus rau lwm pawg lub ntsiab ib ntus.

koj puas nco qab lub ntsiab lus sib lawv liag? lub ntsiab ib ntus thaum nws lub neej. Cov hnub qub qis yuav nyob ntev npaum li lub hnub qub nrog ntau pawg. Lub hnub qub nrog ntau pawg yuav tsim lub zog loj, tab sis rau lub sijhawm luv luv.

Tsis tas li ntawd, Cepheid variable quizlet yog dab tsi?

Cepheid variable yog. Cov hnub qub uas nws luminosity sib txawv tsis tu ncua nrog rau lub sijhawm ntawm ob peb hnub. Lub hnub qub tsis ruaj khov. Lawv qhov loj me yog oscilsting (EXPANDING THIAB CONTRACTING) Raws li qhov hloov pauv loj, lawv cov luminosity thiab qhov kub li cas.

Vim li cas cov ntses dawb supernova muaj txiaj ntsig rau kev nrhiav qhov kev ncua deb mus rau cov galaxies nyob deb heev lawv tuaj yeem siv los nrhiav qhov kev ncua deb mus rau ib lub galaxy koj tuaj yeem xaiv cov lus teb hauv ob peb kab lus?

Kwv yees nyob deb Dhau ntawm Cepheids, astronomers tau tshawb pom qhov siv ntawm dawb dwarf supernovae raws li tus qauv tswm ciab. Vim lawv yog li kaj, peb ua tau ntes lawv txawm tias thaum lawv tshwm sim hauv cov galaxies billions ntawm lub teeb xyoo deb. Nyob deb dua cov galaxies tab tom txav deb ntawm peb sai dua (Lub Ntiaj Teb nthuav dav).

Pom zoo: