Vim li cas cov hnub qub feem ntau tsis tas yuav tuag?
Vim li cas cov hnub qub feem ntau tsis tas yuav tuag?

Video: Vim li cas cov hnub qub feem ntau tsis tas yuav tuag?

Video: Vim li cas cov hnub qub feem ntau tsis tas yuav tuag?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Hlis ntuj nqeg
Anonim

Yog vim li cas hnub qub tsis tuag thaum nws yog muaj sijhawm yog vim lawv nyiam fuse sib txawv thiab ntau hnyav zog.

Hais txog qhov no, vim li cas tag nrho cov hnub qub siv feem ntau ntawm lawv lub neej ntawm lub ntsiab lus sib lawv liag?

Yog li, hais dav dav, muaj ntau hnub qub ntawm lub ntsiab ib ntus - piv rau lwm qhov hauv daim duab H-R - vim hnub qub siv ntau heev ntau ntawm lawv lub neej hlawv hydrogen hauv lawv cores tshaj lawv ua ua zog nyob rau hauv lwm txoj kev!

Tsis tas li ntawd, nyob rau theem twg hauv lub hnub qub kev loj hlob lub hnub qub siv feem ntau ntawm nws lub neej? Main Sequence Hnub qub Cov hnub qub tom qab ntawd dhau los ua qhov tseem ceeb hnub qub . Nws yuav siv 90 feem pua nws lub neej hauv qhov no theem , fusing hydrogen molecules thiab tsim helium hauv nws tub ntxhais. Lub hnub ntawm peb lub hnub ci yog tam sim no nyob rau hauv nws lub ntsiab ib ntus theem.

Ib sab ntawm no, lub hnub qub txias me me hu ua dab tsi?

A liab dwarf yog qhov tsawg tshaj plaws thiab txias tshaj plaws yam hnub qub nyob rau hauv lub ntsiab kab ke. Liab dwarfs yog nyob deb ntawm ntau hom hnub qub nyob rau hauv Milky Way, yam tsawg kawg nyob rau hauv lub zej zog ntawm lub hnub, tab sis vim lawv qis luminosity, tus kheej liab dwarfs tsis tuaj yeem pom tau yooj yim.

Yuav ua li cas txiav txim lub neej thiab kev tuag ntawm lub hnub qub?

Nuclear tshuaj tiv thaiv sab nraum lub hauv paus ua rau tuag hnub qub kom nthuav tawm sab nraud nyob rau theem "liab loj" ua ntej nws pib nws qhov kev poob qis. Hnub qub yog tsim nyob rau hauv cov huab loj heev ntawm plua plav thiab roj, thiab kev vam meej los ntawm lawv li qub lub neej raws li cov khoom ntawm cov pa cua sov los ntawm cov tshuaj tiv thaiv thermonuclear hauv lawv cov cores.

Pom zoo: