FormationSayniska

Meeraha ugu weyn ee nidaamka qoraxda iyo meerayaasha extrasolar

badanaa Waxaad maqli kartaa su'aasha ah taas oo ka mid ah meerayaasha loo yaqaan - ugu weyn. Planet nidaamka qoraxda oo leh miisaan ugu weyn - waa Jupiter. Si kastaba ha ahaatee, cufnaanta waxaa ka mid ah waa ineysan meerayaasha badan. Tusaale ahaan, ka cufnaanta oo ka mid ah Dhulka afar jeer sida ugu badan. Dhab ahaantii waxa uu ogol yahay saynisyahano in ay ku tirinnaa in Jupiter ka kooban yahay inta badan ee gaaska, haddana ma laha core adag. Sidoo kale Jupiter - waa meeraha nidaamka ugu weyn ee qoraxada ku gacan qayb ka mid ah, oo u dhiganta, xaddiga dusha iyo sifooyinka kale ee la xiriira cabbirka.

Haddii aad soo jeedin in tartan size of caalamka, laga helo habab kale oo hugaaminaya, waxa loogu yeero "exoplanets" in uu noqon doono Jupiter - tani ma aha heysta rikoorka. Tusaale ahaan, TrES-4 meeraha 1.4 jeer ka badan caalamka nidaamka ugu weyn ee qoraxda. Sida laga soo xigtay xisaabo, daruur oo gaas ah waa in ugu yaraan 15 jeer ka badan in ay gudaha bilaabay reaction nuclear Avv. Joogitaanka geedi socodkan waxa weeye xiddigaha kala duwan iyo meerayaasha.

New hababka dhawrid ogolaan cilmiga felegga ee in la furo oo dhan meerayaasha cusub oo cusub ku wareegsan xiddigaha kale. Natiijooyinka gaari ee sano ee lasoo dhaafay waxay muujiyeen in nidaamka qoraxda - mid ka mid ah hababka badan Planetary. Cilmi-baarisyadaasi waxay ku rajo lala binu-aadmiga oo dheer-taagan in la helo Caalamka kale deggan. exoplanet ugu horeeya ee la helay sanadkii 1992, oo hadda ayaa loo yaqaan boqolaal exoplanets. exoplanets intooda badan hadda loo yaqaan - waa Rafaa a size ee Jupiter ama ka weyn.

Meerayaasha orbiting xiddigaha fog, waa mid aad u adag in la ogaado, tan iyo markii ay ma dhaadheer iyaga u gaar ah iftiinka iyo aad ugu dhow inay xiddiga dhexe ee nidaamka baahisey yihiin. Si aad u horjoogsadaan dhibaatooyinkan, saynisyahano isticmaalaan qaabab kala duwan in laguu ogolaado in aad si aad u qabato saamaynta maldahan, oo muujinaya joogitaanka meeraha ku hareeraysan xiddiga gaar ah. Habka ugu badan ee loo helo meerayaasha orbiting xiddigaha fog - dhawrid this isbedbeddelka of xawaare radial ah. Habkani wuxuu ku salaysan yahay xaqiiqda ah in meeraha leedahay saamayn daqiiqadii on dhaqdhaqaaqa xiddigaha, oo waxaa la qaadi karaa iyadoo la isticmaalayo a cabbirka spectral aad saxda ah. Habkani waa kan ugu badan tahay in la helo meerayaasha ugu weyn in aad ugu dhow xiddiga yihiin. Fursadaha in Caalamka, kuwaas oo waa la dhex degi doonaa, waa ay yar tahay. jaaniska ugu badan ee loo helo nolol leeska on Earth-sida meerayaasha orbiting in suunka loo habeeyey si ay u abuuraan oo ay u ilaaliyaan nolosha.

Nasiib darro, ogaanshaha ee meerayaasha waa dhib aan caadi ahayn loogu talagalay telescopes dhulka ku saleysan. Si taas loo gaaro, waxaa qorshaynayso in ay billowdo telescopes orbiting, dareenka of taas oo ku filan si ay u dhawraan Earth-sida exoplanets.

Mid ka mid ah observatories orbital sida "Kepler" ogaan karaa size ekzoplanety dhigma Dhulka iyo xataa yar. Tusaale ahaan, ka meeraha Kepler-37b, laga helo nidaamka in koox Lyra ah, size ee uu u dhigmo Moon ah. Waxaa gebi ahaanba ka maran jawiga iyo cas-kulul heerkulka weyn iyo suurtagalnimada in ay tahay nolol, ma ugu weyn. Planet nidaamka qoraxda, la mid ah sifooyinka in exoplanet this - Mercury. Laakiin xaqiiqada ah in Kepler-37b waxaa hubaal tir - dhab ahaantii la yaab leh oo yididiilo leh.

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