2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Astronomers tau txheeb xyuas ntau kauv galaxies dua li ellipticals, tab sis qhov ntawd tsuas yog vim qhov kauv yooj yim rau pom. Kauv galaxies yog hotbeds ntawm lub hnub qub tsim, tab sis elliptical galaxies tsis yog ze li qhov muaj txiaj ntsig vim tias lawv muaj roj tsawg thiab hmoov av, uas txhais tau hais tias tsawg dua tshiab (thiab ci dua) hnub qub yug.
Tsis tas li ntawd, pes tsawg feem pua ntawm galaxies yog elliptical?
Milky Way, lub galaxy uas peb lub hnub ci nyob, yog Sb-hom kauv galaxy. Kev kwv yees 20 feem pua ntawm cov galaxies paub tias muaj ib daim ntawv lenticular, 15 feem pua yog elliptical thiab tsuas yog hais txog 5 feem pua yog irregular.
Tsis tas li ntawd, qhov twg elliptical galaxies feem ntau yuav pom? Elliptical galaxies yog nyiam pom hauv galaxy pawg thiab nyob rau hauv compact pawg ntawm cov galaxies . Tsis zoo li ca kauv cov galaxies nrog lub koom haum thiab cov qauv, elliptical galaxies yog ntau peb-dimensional, tsis muaj ntau tus qauv, thiab lawv cov hnub qub nyob rau hauv me ntsis random orbits nyob ib ncig ntawm qhov chaw.
Tsis tas li ntawd, vim li cas elliptical galaxies feem ntau tshwm sim?
Ib tug ntawm feem ntau hom yog elliptical galaxies , npe vim lawv muaj lub cev ellipsoidal (los yog qe) zoo li, thiab ib tug du, yuav luag featureless tsos. Lawv yog cov tshwm sim ntawm ntau kev sib tsoo ntawm me me cov galaxies , thiab tag nrho cov kev sib tsoo no tau rhuav tshem cov qauv me me uas peb pom hauv peb tus kheej galaxy.
Puas yog peb lub galaxy kauv elliptical lossis tsis xwm yeem?
Ib tug kauv galaxy muaj ib spinning, flattened disk nrog caj npab uas tig ceev heev. Ib elliptical galaxy yog tus feem ntau hom galaxy , muaj ib roundish zoo, thiab qhia me me los yog tsis muaj hnub qub tsim. Ib irregular galaxy yog galaxy tsis muaj cov duab uas muaj cov hnub qub hluas heev.
Pom zoo:
Dab tsi yog qhov txawv ntawm kauv galaxies thiab barred kauv galaxies?
Dab tsi yog qhov txawv ntawm ib lub galaxy barred kauv thiab lub elliptical galaxy? Ib qho kauv tsis pub muaj ob los yog ntau dua kauv caj npab nyob rau hauv ib lub tiaj tiaj, qhov twg caj npab txuas nrog ib lub hnub qub. Lub bar thiab kauv caj npab yog cov cheeb tsam ntawm lub hnub qub tsim. Qhov nruab nrab ntawm lub bar feem ntau yog ib tug kheej kheej bulge
Dab tsi yog galaxies hu ua uas tsis meej elliptical lossis kauv nyob rau hauv cov duab?
Galaxies uas tsis meej ellipticalgalaxies los yog kauv galaxies yog cov irregulargalaxies. Dwarf galaxies yog hom ntau tshaj plaws hauv ntiaj teb. Txawm li cas los xij, vim tias lawv me me thiab tsis pom kev, peb tsis pom ntau lub dwarf galaxies los ntawm lub ntiaj teb. Feem ntau cov dwarfgalaxies tsis zoo li qub
Puas muaj cov poov tshuaj ntau dua li neon muaj lossis tsis yog?
Potassium muaj pes tsawg tus electrons ntau dua Neon
Puas muaj kev cuam tshuam ntau dua nrog cov catalyst lossis tsis muaj?
Reactions xav tau ib tug npaum li cas ntawm lub zog thiaj li yuav tshwm sim. Yog tias lawv tsis muaj, huag zoo, cov tshuaj tiv thaiv tej zaum tsis tuaj yeem tshwm sim. Ib qho catalyst txo qis lub zog xav tau kom qhov kev tshwm sim tuaj yeem tshwm sim tau yooj yim dua. Lub zog xav tau los ua kom muaj qhov tshwm sim yog hu ua lub zog ua kom muaj zog
Vim li cas feem ntau galaxies kauv?
Astronomers ntseeg hais tias galaxies muaj kauv caj npab vim galaxies rotate - los yog tig ib ncig ntawm lub hauv paus axis - thiab vim hais tias ntawm ib yam dab tsi hu ua "nthwv nthwv dej." Lub kauv galaxy txoj kev sib hloov, los yog kiv, khoov cov nthwv dej rau hauv spirals. Cov hnub qub dhau los ntawm nthwv dej thaum lawv ncig lub galaxy chaw