阅读记录

对火星轨道变化问题的最后解释[2/2页]

死在火星上 天瑞说符

设置 ×

  • 阅读主题
  • 字体大小A-默认A+
  • 字体颜色
elentsofrcury,eseciallyitseentricity,seegetosignificantextentthisisartlybecaetheorbitaltiscaleoftheistheshortestofallthes,whichleadstooreraidorbitalevotionthanotherthenertostabilitythisresultaearstobesoagreer's(1994,1996)exectationsthatrgeandirregurvariationsaeartheeentricitiesandclationsofrcuryontiscaleofseveral109yrhowever,theeffectoftheossiblestabilityoftheorbitofrcuryaynotfatallyaffecttheglobalstabilityofthewholearysysteogtothesallassofrcurywewillntion
      ieflythelongterorbitalevotionoftersectionlowassfilteredorbitalelents
      theorbitalotionoftheouterfiveseesrigorolystableanditereguroverthistisan(seealsosection5)
      32tibsas
      althoughthearyotionexhibitsverylongterstabilitydefedasthenonexistenceofcloseenunterevents,thechaoticnatureofarydynagetheosciltoryeriodandalitudeofaryorbitalotiongraduallyoversuchlongtisansevensuchslightfctuationsoforbitalvariationthefreencydorlythecaseofearth,canotentiallyhavesignificanteffectonitssurfacecliatesystethroughsorsotionvariation(cfberger1988)
      togiveanoverviewofthelongtergeeriodicityaryorbitalotion,weerfordanyfastfouriertransforations(ffts)alongthetiaxis,andsuerosedtheresultgeriodgrastodrawodinsionaltibsasthesecificaroachtodragthesetibsasthisaerisverysibssilerthanthewaveletanalysisorskar's(1990,1993)freencyanalysis
      dividethelowassfilteredorbitaldatatoanyfragntsofthesalengththelengthofeachdatasegntshouldbeultileofordertoalythefft
      eachfragntofthedatahasrgeovergart:forexale,whentheithdatabegsfrot=tiandendsatt=ti+t,thenextdatasegntrangesfroti+δt≤ti+δt+t,whereδt?twentuethisdivisionuntilwereachcertanuberbywhichtn+treachesthetotaltegrationlength
      wealyanffttoeachofthedatafragnts,andobtafreencydiagras
      eachfreencydiagraobtaedabove,thestrengthoferiodicitycanberecedbygreyscale(orlour)chart
      weerfort,andnnectallthegreyscale(orlour)chartstoonegrahforeachtegrationthehorizontalaxisofthesenewgrahsshouldbetheti,iethestartgtibsfragntofdata(ti,wherei=1,…,n)theverticalaxisreresentstheeriod(orfreency)oftheosciltionoforbitalelents
      wehaveadotedanfftbecaeofitsoverwhelgseed,scetheaountofnubsdatatobedeosedtofreencyisterriblyhuge(severaltensofgbytes)
      tyicalexaleofthetibsacreatedbytheaboveroceduresisshowngreyscalediagraasfig5,whichshowsthevariationoferiodicitytheeentricityandclationofearthn+2tegrationfig5,thedarkareashowsthatatthetidicatedbythevaeontheabscissa,theeriodicitydicatedbytheordateisstrongerthanthelighterareaarounditwecanregnizefrothisthattheeriodicityoftheeentricityandclationofearthonlychangesslightlyovertheentireeriodveredbythen+2tegrationthisnearlyregurtrendisalitativelythesaothertegrationsandforothers,althoughtyicalfreenciesdifferbyandelentbyelent
      42longtergeoforbitalenergyandangurontu
      wecalcuteverylongeriodicvariationandexchangeofaryorbitalenergyandangurontufiltereddeunayelentsl,g,andareeivalenttothearyorbitalangurontuanditsverticalerunitassisretedtothearyorbitalenergyerunitassase=?μ22l2ifthesysteletelylear,theorbitalenergyandtheangurontubsfreencystantnonlearitythearysystebscaeanexchangeofenergyandangurontuthefreencydoathealitudeofthelowestfreencyosciltionshouldcreaseifthesysteisunstableand
      eaksdowngraduallyhowever,suchsytoofstabilityisnotroourlongterions
      fig7,thetotalorbitalenergyandangurontuofthefournerandallneareshownfortegrationn+2theuerthreeanelsshowthelongeriodicvariationoftotalenergy(denotedasee0),totalangurontugg0),andtheverticalhh0)ofthenerfourcalcutedfrothelowassfiltereddeunayelentse0,g0,h0denotetheitialvaesofeachantitytheabsotedifferencefrotheitialvaesislottedtheanelsthelowerthreeanelseachfigureshowee0,gg0andhh0ofthetotalofnethefctuationshowntheloweranelsisvirtuallyentirelyresultoftheassivejovians
      argthevariationsofenergyandangurontuofthenerfourandallnes,itisaarentthatthealitudesofthoseofthenerarebssallerthanthoseofallnes:thealitudesoftheouterfivearergerthanthoseofthenerthisdoesnotanthatthenerterrestrialarysubsysteisorestablethantheouterone:thisissilyresultoftheretivesallnessoftheassesofthefourterrestrialaredwiththoseoftheouterjoviananotherthgwenoticeisthatthenerarysubsysteeunstableoreraidlythantheouteronebecaeofitsshorterorbitaltiscalesthiscanbeseentheanelsdenotedasnerfigwherethelongereriodicandirregurosciltionsareoreaarentthantheanelsdenotedastotalactually,thefctuationstheneranelsaretorgeextentasresultoftheorbitalvariationofthercuryhowever,wecannotneglectthentributionfrootherterrestrials,aswewillseesubseentsections
      44longterulgofseveralneighbourgairs
      letseesodividualvariationsofaryorbitalenergyandangurontuexressedbythelowassfiltereddeunayelentsfigs10and11showlongterevotionoftheorbitalenergyofeachandtheangurontun+1andn?2tegrationswenoticethatsosforaarentairstersoforbitalenergyandangurgearticur,venandearthbsairthefigures,theyshownegativerretionsexchangeofenergyandositiverretionsexchangeofangurontuiverretionexchangeoforbitalenergyansthattheforcloseddynabssystetersoftheorbitalenergytheositiverretionexchangeofangurontuansthattheareseolyundercertalongtererturbationscandidatesforerturbersarejuiterandsaturnalsofig11,wecanseethatarsshowsositiverretiontheangurontuvariationtotheven–earthsystercuryexhibitscertanegativerretionstheangurontuverstheven–earthsystebsseestobereactioncaedbythenservationofangurontutheterrestrialarysubsyste
      itisnotclearattheontwhytheven–earthairexhibitsnegativerretionenergyexchangeandositiverretionangurgeweayossiblyexthisthroughobservgthegeneralfactthattherearenosecurteraryseiajoraxestosendordererturbationtheories(cf
      ouwerclebs1961boalettiucao1998)thisansthatthearyorbitalenergy(whichisdirectlyretedtotheseiajoraxisa)bslessaffectedbyerturbgthanistheangurge(whichretestoe)hence,theeentricitiesofvenandearthcanbedisturbedeasilybyjuiterandsaturn,whichresultsositiverretiontheangurgeontheotherhand,theseiajoraxesofvenandeartharelesslikelytobedisturbedbythejovianththeenergyexchangeaybeliitedonlywiththeven–earthair,whichresultsnegativerretiontheexchangeoforbitalenergytheair
      asfortheouterjovianarysubsyste,juiter–saturnanduran–uneseetobsairshowever,thestrengthoftheirulgisnotasstrongaredwiththatoftheven–earthair
      x1010yrtegrationsofouteraryorbits
      scethejovianaryassesarergerthantheterrestrialaryasses,wetreatthejovianarysysteasandeendentarysystetersofthestudyofitsdynabsstabilityhence,weaddeduleoftrialtegrationsthatsan1010yr,cdgonlytheouterfive(thefourjovianto)theresultsexhibittherigorostabilityoftheouterarysysteoverthislongtisanorbitalnfigurations(fig12),andvariationofeentricitiesandclations(fig13)showthisverylongterstabilityoftheouterfiveboththetiandthefreencydoasalthoughwedonotshowashere,thetyicalfreencyoftheorbitalosciltionoftoandtheotherouterisalstantdurgtheseverylongterioneriods,whichisdeonstratedthetibsasonourwebage
      thesetegrations,theretivenubserrorthetotalenergywas?10?6andthatofthetotalangurontuwas?10?10
      51resonancestheune–tosyste
      koshitanakai(1996)tegratedtheouterfivearyorbitsover55109yrtheyfoundthatfourbsbeeenuneandtoareataeddurgthewholetegrationeriod,andthattheresonancesaybethecaesofthestabilityoftheorbitoftotheajorfourresonancesfoundrevioresearchareasfollowsthefollogdescrition,λdenotestheanlongitude,Ωisthelongitudeoftheascendgnodeandisthelongitudeoferihelionsubscritsanddenotetoandune
      anbsbeeenuneandto(3:2)thecriticalarguntθ1=λ?λn??li
      atesaround180°withanalitudeofabout80°andli
      ationeriodofabout104yr
      thearguntoferihelionoftow=θ2=??Ωli
      atesaround90°witheriodofabout38106yrthedobsvariationsoftheeentricityandclationoftoaresynchronizedwiththeli
      ationofitsarguntoferihelionthisisanticiatedthesecurerturbationtheorynstructedbykozai(1962)
      thelongitudeofthenodeoftoreferredtothelongitudeofthenodeofune,θ3=Ω?Ωn,circutesandtheeriodofthiscircutionisealtotheeriodofθ2li
      ationwhenθ3beeszero,iethelongitudesofascendgnodesofuneandtoover,theclationoftobeesaxitricitybeesiuandthearguntoferihelionbees90°whenθ3bees180°,theclationoftobeesitricitybeesaxiuandthearguntoferihelionbees90°agawilliasbenson(1971)anticiatedthistyeofresonance,ternfirni,nobilicaro(1989)
      anarguntθ4=n+(Ω?Ωn)li
      atesaround180°withlongeriod,?57108yr
      ournuions,theresonances(i)–(iii)arewellataed,andvariationofthecriticalarguntsθ1,θ2,θ3rerdurgthewholetegrationeriod(figs14–16however,thefourthresonance(iv)aearstobedifferent:thecriticalarguntθ4alternatesli
      ationandcircutionover1010yrtiscale(fig17)thisisanterestgfactthatkoshitanakai's(1995,1996)shortertegrationswerenotabletodisclose
      discsion
      whatkdofdynaisatasthislongterstabilityofthearysystebsidiatelythkofajorfeaturesthatayberesonsibleforthelongterstabilityfirst,thereseetobenosignificantlowerorderresonances(anotionandsecur)beeenanyairaongthenejuiterandsaturnarecloseto5:2anbs(thefao‘greateality),butnotjttheresonancezonehigherorderresonancesaycaethechaoticnatureofthearydynabsotion,buttheyarenotsostrongastodestroythestablearyotionwiththelifetioftherealsorsystedfeature,whichwethkisoreiortantforthelongterstabilityofourarysyste,isthedifferencedynabsbeeenterrestrialandjovianarysubsystes(itotanikawa1999,2001)whenwearysearationsbytheutualhillradii(r_),searationsaongterrestrialaregreaterthan26rh,whereasthoseaongjovianarelessthan14rhthisdifferenceisdirectlyretedtothedifferencebeeendynabsfeaturesofterrestrialandjovianterrestrialhavesallerasses,shorterorbitaleriodsandwiderdynabssearationtheyarestronglyerturbedbyjovianthathavergerasses,longerorbitaleriodsandnarrowerdynabssearationjovianarenoterturbedbyanyotherassivebodies
      theresentterrestrialarysysteisstillbegdisturbedbytheassivejovianhowever,thewidesearationandaongtheterrestrialrendersthedisturbanceeffectivethedegreeofdisturbancebyjovianiso(ej)(orderofagnitudeoftheeentricityofjuiter),scethedisturbancecaedbyjovianisforcedosciltionhavganalitudeofo(ej)heightengofeentricity,forexaleo(ej)?005,isfarfrottorovokestabilitytheterrestrialhavgsuchwidesearationas26rhthweassuthattheresentwidedynabssearationaongterrestrial26rh)isrobablyoneofthenditionsforatagthestabilityofthearysysteover109yrtisanourdetailedanalysisoftheretionshibeeendynabsbeeenandthestabilitytiscaleofsorsystearyotionisnowongog
      althoughournuionssanthelifetiofthesorsyste,thenuionsisfarfrottofilltheitialhasesaceitisnecessarytoerfororeandbstegrationstonfirandexaedetailthelongterstabilityofourarydynaics
      这只是作者君参考的一篇文章,关于太阳系的稳定性。
      当然还有其他论文,不过其它论文下载一篇要九美元,作者君下不起,就不贴上来了。

对火星轨道变化问题的最后解释[2/2页]