Video: Interstellar nruab nrab yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Txawm tias qhov chaw yog khoob heev thiab cov hnub qub nyob rau hauv Milky Way yog sib nrug heev, lub qhov chaw nruab nrab ntawm lub hnub qub muaj ib tug heev diffuse nruab nrab ntawm cov pa roj thiab plua plav astronomers hu rau interstellar nruab nrab (ISM). Qhov no nruab nrab Cov pa roj carbon dioxide muaj nruab nrab (HI), cov pa roj molecular (feem ntau H2), ionized gas (HII), thiab hmoov av nplej.
Tib neeg kuj nug, peb puas tuaj yeem pom los ntawm qhov nruab nrab ntawm lub hnub qub?
Cov khoom no hu ua interstellar nruab nrab . Cov interstellar nruab nrab ua li ntawm 10 mus rau 15% ntawm cov pom loj ntawm Milky Way. Kwv yees li 99% ntawm cov khoom siv yog roj thiab qhov seem yog "plua plav". Tsis muaj hmoov av, peb yuav tau saib dhau tag nrho 100,000 lub teeb xyoo disk ntawm Galaxy.
Ib sab saum toj no, qhov nruab nrab interstellar kub npaum li cas? Qhov kub tshaj plaws interstellar roj muaj qhov kub ntawm 8000 Kelvin (los yog ntau dua). (Lub Hnub Ci System, los ntawm txoj kev, zoo li nyob rau hauv ib qho loj, tsis tshua muaj npuas npuas nyob rau hauv lub interstellar nruab nrab .)
Hais txog qhov no, vim li cas interstellar nruab nrab tseem ceeb?
Cov interstellar nruab nrab yog intimately intertwined nrog cov hnub qub. Cov hnub qub yog tsim los ntawm lub cev qhuav dej ntawm cov pa thiab plua plav hauv cov huab molecular. Cov roj uas tseem tshuav nyob ib ncig ntawm cov hnub qub uas tsim los loj heev ua rau thaj tsam HII. Cov interstellar nruab nrab yog li ntawd plays ib tseem ceeb lub luag haujlwm hauv tshuaj evolution ntawm galaxy.
Dab tsi yog hom roj ntau tshaj plaws nyob rau hauv nruab nrab hnub qub?
Feem ntau ntawm interstellar nruab nrab yog nyob rau hauv daim ntawv ntawm nruab nrab hydrogen gas (HI). Qhov ntom ntom ntawm nruab nrab hydrogen hauv Galaxy yog ib atom ib cubic centimeter. Qhov no gas yog txias thiab cov electron feem ntau yog nyob rau hauv nws lub hauv av.
Pom zoo:
Yuav ua li cas koj pom qhov nruab nrab thiab nruab nrab ntawm daim duab peb sab?
Txhawm rau nrhiav qhov chaw nruab nrab ntawm daim duab peb sab, nws yog qhov yooj yim tshaj plaws los kos tag nrho peb qhov nruab nrab thiab nrhiav lawv qhov kev sib tshuam. Txhawm rau kos qhov nruab nrab ntawm daim duab peb sab, ua ntej nrhiav qhov nruab nrab ntawm ib sab ntawm daim duab peb sab. Kos ib kab ntu uas txuas qhov taw tes no mus rau qhov rov qab vertex
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Koj pom qhov nruab nrab thiab nruab nrab hauv tableau li cas?
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Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
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Koj ua li cas sib npaug redox cov tshuaj tiv thaiv hauv acidic thiab nruab nrab nruab nrab?
Acid Conditions Solution. Kauj Ruam 1: Sib cais ib nrab cov lus teb. Kauj Ruam 2: Ntsuas cov ntsiab lus uas tsis yog O thiab H. Kauj Ruam 3: Ntxiv H2O kom sib npaug ntawm cov pa. Kauj Ruam 4: Sib npaug hydrogen los ntawm kev ntxiv protons (H +). Kauj Ruam 5: Ntsuas tus nqi ntawm txhua qhov sib npaug nrog electrons. Kauj Ruam 6: Ntsuas cov tshuaj tiv thaiv kom cov electrons sib npaug