"Lub qhov dub tsis yooj yim sua" tuaj yeem dhau los ua qhov yuam kev ntawm cov kws tshawb fawb hnub qub

"Lub qhov dub tsis yooj yim sua" tuaj yeem dhau los ua qhov yuam kev ntawm cov kws tshawb fawb hnub qub
"Lub qhov dub tsis yooj yim sua" tuaj yeem dhau los ua qhov yuam kev ntawm cov kws tshawb fawb hnub qub
Anonim

Ob peb lub lis piam dhau los, cov kws tshawb fawb los ntawm National Astronomical Observatory of China tau tshawb pom lub qhov dub, uas, raws li txhua lub tswv yim hais txog cov khoom ntawd, yuav tsum tsis muaj nyob. Qhov hnyav ntawm ib yam khoom hu ua LB-1 yog kwv yees li 70 hnub ci. "Qhov dub ntawm qhov loj no yuav tsum tsis muaj nyob hauv peb Galaxy, raws li cov qauv niaj hnub ntawm kev hloov pauv hnub qub," ib tus ntawm nws tus kws sau ntawv, Jifeng Liu, hais txog qhov kev tshawb pom.

Txawm li cas los xij, ntau tsab xov xwm uas tau tshwm sim ntawm ArXiV.org preprint portal ib zaug tsis lees paub qhov kev tshawb pom no. Lub ntsiab lus yog lub teeb ntawd, txhais tau tias yog los ntawm daim ntawv pov thawj ntawm lub qhov dub, tuaj yeem muaj qhov sib txawv kiag li. Qhov no txhais tau tias kev ntsuas qhov hnyav ntawm lub qhov dub, tau txais los ntawm lub teeb hluav taws xob, feem ntau yuav tsis raug.

Raws li Suav cov kws tshawb fawb hnub qub, LB -1 yog nyob hauv cov txheej txheem binary - lub hnub qub me me tig ncig lub qhov dub. Vim qhov tseeb tias lub ntiajteb txawj nqus ntawm lub hnub qub cuam tshuam rau lub qhov dub hauv qee txoj hauv kev, qhov ntau ntawm cov hluav taws xob tawm los ntawm LB-1 hloov pauv. Tab sis cov kws tshawb fawb ntawm University of California, Berkeley sib cav tias H-alpha emission (ib qho ntawm cov kab spectral ntawm hydrogen) tsis hloov pauv txhua.

Cov kws tshawb fawb hais tias qhov tsis txaus ntseeg tau sau tseg los ntawm Suav cov kws tshawb fawb hnub qub yog qhov ua rau pom kev tsis zoo tshwm sim los ntawm kev tso pa tawm thiab nqus tau ntawm lub hnub qub koom nrog. Thaum cov xwm txheej no raug tshem tawm ntawm cov ntaub ntawv tshuaj xyuas, qhov hloov pauv ntawm H-alpha spectral kab tau ploj mus. Qhov no qhia tias lub qhov dub yog qhov ntau dua 70 lub hnub ci (uas tsis tshua muaj neeg xav tau), lossis nws qhov hnyav tsis tshaj 20 lub hnub ci.

Cov vis dis aus qhia txog qhov oscillation ntawm cov zaus siv hluav taws xob hauv cov txheej txheem binary / © Brian Jackson

Kev ywj pheej ntawm Asmeskas cov kws tshawb fawb, ob pawg kws tshawb fawb ntxiv tau tshaj tawm qhov tsis lees paub ntawm "qhov tsis pom dub" qhov kev tshawb pom. Cov kws saib hnub qub los ntawm Tsev Kawm Qib Siab Auckland hauv New Zealand tau ua lub computer simulation ntawm cov txheej txheem binary suav nrog lub hnub qub thiab lub qhov dub, nyob ntawm qhov deb tib yam li Lub Ntiaj Teb li LB-1. Cov qauv ntsuas pom tau tias qhov hnyav ntawm LB-1 tuaj yeem hloov pauv ntawm plaub thiab xya hnub ci.

Kab lus thib peb tau tshaj tawm los ntawm cov kws tshawb fawb los ntawm Leiden Catholic University hauv Belgium. Lawv, zoo li lawv cov npoj yaig Asmeskas, tsom mus rau kev txheeb xyuas H-alpha spectral kab, siv lawv tus kheej cov ntaub ntawv tau los ntawm HERMES spectrograph ntawm Mercator tsom iav hauv Canary Islands. Rho tawm cov theoretical hydrogen-alpha nqus kab sib xws rau qhov cuam tshuam ntawm lub hnub qub hauv cov txheej txheem binary, cov kws tshawb fawb hauv Belgian tuaj txog qhov kev txiav txim zoo ib yam: lub qhov dub hauv qhov system no yuav zoo dua 20 lub hnub ci.

Txawm hais tias tsis muaj ib tsab xov xwm hais txog twg tseem tsis tau raug tshuaj xyuas, qhov tseeb tias peb pawg kws tshawb fawb tau los txog qhov kev txiav txim siab sib txawv yog qhov yuam kev. Yog li hauv LB-1 yeej tsis muaj ib yam dab tsi "tsis yooj yim sua" thiab ua rau lub hauv paus tsim ntawm astrophysics.

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