
grand tack gruhitak

grahiy khagolshastrat, grand tack hypothesis asey suchavate qee jupiter suryapasoon 3.5 aii. yuu. chya antaravar tayar jhaala, nantar 1.5 aii. yuu. kadey aat sthalantarit jhaala, kakshiy anunadat shaniwar tabyat ghetalyamule marg ulatanyapurvi, akheris tyachya vartaman kakshet thambla. jupiterchya grahanchya sthalantarat ulatya jhalelya sthitichi tulana palvi botichya vaayachya viruddha pravas kartana disha badalanyachya (tacking) margashi kelee jaate.
jupiterchya sthalantaradvare grahiy disk 1 aii. yuu. varr kapali jaate, jyamule mangal tayar karnyasathi upalabdh samagri maryadit hote. jupiter donada laghugrah pattya olandun, bahya aanee nantar aateel bajus laghugrah vikhurato. parinami laghugrah pattyamadhye eka lahan vastuman, vividh prakarche cull aanee utkatata aanee jupitarchya mool kakshet aanee baheroon udbhavnari loksankhya asate. jupiterchya pudhe vahoon gelelya grahanchya takkarane nirman jhalele avashesh kadachit grahanchya suruvatichya pidhila suryaprakashat gheuun gele asateel.
varnan.
grand tack hypothesismadhye jupiter tyachya nirmitinantar done-tappyanche sthalantar kele, joou marg ulatanyapurvi aanee baherchya dishene sthalantar karnyapurvi 1.5 aii. yuu. paryant aatalya dishene sthalantarit jhaala. jupitarchi nirmiti himareshejaval, andaje 3.5 aii. yuu. varr jhaali.
gass discommadhil antar door kelyanantar, jupiterche dusya prakarche sthalantar jhaale, gass disks haloohaloo suryakade vatchal kelee. jarr akhandit asel tarr yaa sthalantaramule jupiter suryachya bhovati jawalchya kakshet rahila asata, jase itar grahanchya pranalinmadhye alikadech shodhalele garam jupiter. shanidekhil suryakade sthalantarit jhaala, parantu lahan asalyane too eka tarr prakar I sthalantar kinwa paloon gelelya sthalantaratun vegane sthalantarit jhaala. shanee jupitarvar ekatra aala aanee yaa sthalantaradarmyan jupiters 2h3 mean-motion resonancemadhye qaid jhaala. tyanantar jupiter aanee shanivarchya bhovati gass diskmadhye eka ativyapi antar tayar jhaale, jyamule yaa grahanvareel shaktinche santulan badalale jeey ekatra sthalantar karoo lagale. shanine antaracha tyacha bhag anshatah saaf keela jyamule bahya diskdware jupitervar ghatalela torq qamee jhaala. 
tyanantar grahanvareel nivval torq sakaratmak jhaala, aateel lindblad anunadadvare nirman jhalelya torq bahya diskchya resonancepeksha jaast jhaale aanee grah baherchya dishene sthalantar karoo lagale. grahanmadhil parasparsanvadamule vayoo yaa antaratoon vahoo shakala, tyamule bahya sthalantar chaloo rahoo shakale. vayoone tyachya pravasadarmyan grahanshi koneey gatichi devanghevan kelee, jyamule torkche sakaratmak santulan vadhale, jyamule grah diskchya sapeksh bahya dishene sthalantar karoo shakale; devanghevanane bahya discomadhun aateel diskmadhye vastuman dekhil hastantarit kele. aateel diskmadhye vayuche hastantaran kelyane bahya diskchya tulanet aateel diskche vastuman qamee hone dekhil mandavale kaaran teey suryavar jamaa hott gele, jeey anyatha aateel torq kamkuvat karel, jyamule vishal grahanche bahya sthalantar sampel. grand tack hypothesismadhye asey manale jaate qee jupiter 1.5 aii. yuu. varr asatana yaa prakriyene grahanche aateel sthalantar ulatale aahe. jupiter aanee satternche bahya sthalantar teey flaired diskmadhye shoonya-torq sanrachaneparyant pohocheparyant kinwa gass disk nasht hoiparyant chaloo rahile. jupiter tyachya andaje vartaman kakshet pohochalyavar sampoorn prakriya sampel asey manale jaate.
grand tack gruhitkanchi vyapti.
heey gruhitak saur mandalatil anek ghatananvar lagoo kele jaau shakate.
mars samasya.
mangal samasya" haah pruthvivaril grahanchya nirmitichya kahee anukarananmadhil sangharsh aahe, joou tyachya pradeshatil 0.5-1.0 grahasah samapt hoto, joou mangal grahachya vastavik vastumanapeksha khoop motha asatoh 0.107, jevha aatalya saur mandalat vitarit kelelya grahansah suruvat hote. jupitercha bhavya marg mangal tayar karnyasathi upalabdh asalelya samagreela maryadit karoon mangalachi samasya sodavato. 
jupiterche aateel sthalantar heey samagriche vitaran badalate, jyamule grahanchya aatalya bajus 1.0 chya aat samgrichya mishranasah eka arund daat patti tayar hote aanee mangal pradesh mothya pramanat rikama rahato. grahanche bhrun jaladpane arund pattyamadhye tayar hotat. yapaiki bahutek bhrun 6 teey 13 kotee varshanchya kalavadhit mothe sthaliy grah (shukra aanee pruthvi) tayar karnyasathi dhadaktat aanee villin hotat. itar bandchya baher vikhurlele asatat jithe teey atirikt samgripasoon vanchit asatat, tyanchi vaadh mandavtat aanee qamee vastuman asalele mangal aanee paaraa heey sthaliy grah tayar karatat.
laghugrah patta.
jupiter aanee shaniwar bahutek laghugrahanna tyanchya sthalantaradarmyan tyanchya prarambhik kakshetoon chalavatat, jupiterchya mool sthanatil aanee bahereel donhi thikanahun prapt jhalela utsahi avashesh mage sodatat. jupiterchya sthalantarapurvi aaspaschya pradeshanmadhye laghugrah hote jeey suryapasoonchya tyanchya antaranusar rachnet bhinn hote. aateel bhagat khadkal laghugrahanche varchasva hote, tarr barfareshechya palikade bahya pradeshat adhik pracheen aanee barfal laghugrahanche varchasva hote. jupiter aanee sattern aatalya dishene sthalantar karat asatana, aateel laghugrahanche ~15% shanichya palikade kakshet baherchya dishene vikhurlele asatat. marg ulatalyanantar, jupiter aanee sattern pratham yaa vastooncha samna karatat, mool loksankhyechya sumare 0.5% sthir kakshanmadhye aatalya dishene vikhuratat. nantar, jupiter aanee sattern bahya pradeshat sthalantarit hott asatana, sumare 0.5% adim laghugrah bahya laghugrah pattyatil kakshanmadhye vikhurlele asatat. jupiter aanee shaniwar yanchya bhetinantar pakadale gelele anek laghugrah mothya vilakshanata aanee kalansah sodoon jaatat. chhan pratimanat varnan kelelya vishal grahachya asthiratedarmyan heey qamee kele jaau shakatat jenekarun utkendrata vitaran sadhyachya laghugrah pattyasarkhe asel. kahee barfal laghugrah heey nantar sthaliy grah tayar jhalelya pradeshala olandun jaananya kakshet dekhil sodale jaatat, jyamule barfal laghugrah tyanchyashi bhidatat tase paanee vadhana grahanparyant pohochavata yete.
super-arth anupasthit.
saur mandalat jawalun pradakshina ghalana super-arthchi anupasthiti dekhil jupiterchya aateel sthalantaramule asoo shakate. jupiter aatalya dishene sthalantar karat asatana, grahanche pratirup tyachya sarasari-gatichya anunadanmadhye pakadale jaatat, jyamule tyanchya kaksha sankuchit hotat aanee tyanchi utkendrata vadhate. grahanchya sapeksh vegamule aapattijanak parinam nirman karnyasathi purese mothe jhalyamule eka takkar zara pudhe yete. parinami yenare avashesh nantar gass discomadhun odhalyamule suryachya dishene aatalya dishene sarakatat. suruvatichya saurmalet jarr super-earths asat tarr tyanni yaa avasheshanpaiki barechase pratidhvanit kele asate aanee avashesh aatalya dishene sarkalyamule teey suryaprakashat vahoon nele jaau shakale asate. jupitercha marg ulatala tevha mage rahilelya grahanpasoon sadhyache sthaliy grah tayar hotil. tathapi, jarr avashesh mothya vastunmadhye ekatra aale, vayuche ogh qamee jhaale aanee jarr protoplanetary diskmadhye aateel pokali asel tarr tyanche aateel sthalantar tyachya kathajaval thambavale jaau shakate, tarr suryamadhye jawalun pradakshina ghalana super-arthche sthalantar talhata yeu shakate. jarr aatalya saurmalet adyap konatehi grah tayar jhaale nasate, tarr takkarchya zyandarmyan mothya vastoonchya nashamule urvarit avashesh itake lahan rahoo shakale asate qee saur vavyamule baher dhakalale jaau shakat, jeey suruvatichya sauramaledarmyan adhik majboot jhaale asate, paryachya kakshet grah tayar karnyasathi farse urale nasate.
nantarchya ghadamodi.
protoplanetary diskchya namunyancha vapar karoon sthaliy grahanchya nirmitiche anukaran jyamadhye chikat ushnata aanee grahanchya bhrunanche sthalantar samavisht aahe teey soochit karate qee jupiterche sthalantar 2. aii. yuu. varr ulatale asave. anukarananmadhye bhrunatil utkatata jupitarchya vikshobhanmule uttejit hotat. alikadil modelchya ghanatechya vayoo diskdware yaa utkendrata olsarlya jaat asalyane, garbhache ardh-pramukh aksh sankuchit hotat, jyamule ghan padarthanchi sarvoch ghanata aatalya dishene badalate. jupiterche sthalantar 1.5 aii. yuu. varr ulatat asatana anukaranasathi, yacha parinam pruthvichya kakshet nasoon shukra kakshachya jawal sarvat motha sthaliy grah tayar honyat jhaala. tyaeivaji jupiterche 2. aii. yuu. varr sthalantar ulatananya anukarananmule sadhyachya sauramaleshi jawalchi julani jhaali.
jevha fatka aanee dhavanchya takkaranmule honare vibhajan prarambhik asthiratesah anukarananmadhye samavisht kele jaate tevha sthaliy grahanchya kakshanche adhik changle utpadan hote. yaa takkaranmule mothya sankhyene lahan vastoo nirman jhalyamule vadhatya grahanchi utkranti aanee cull atirikt takkar aanee gatishil gharshanadvare qamee hotat. yamule sthaliy grahanchya vastumanacha eka motha bhag shukra aanee pruthvivar kendrit hoto aanee mangal grahachya tulanet tyanchya nirmiticha kalavadhi vadhato.
laghugrah pattyatoon vishal grahanche sthalantar kelyane prabhav vegat vaadh hote jyamule see. bii. chaundrites tayar houu shakatat. see. bii. chaundrites heey loh/nickel gathinche dhatuyukt carbonesius chaundrites aahet, jeey pahilya ghan padarthannantar 4.8 ± 0.3 mail vitalananya prabhavachya sphatikikaranatun tayar hotat. yaa dhatunchya bashpibhavnasathi 18 kiimii/sekandapeksha jaast prabhav aavashyak asato, joou manak sanchay modelmadhye 12.2 kiimii/sekandachya kamal prabhavapeksha jaast asato. laghugrah pattyavarun jupiterchya sthalantaramule laghugrahanchi utkendrata aanee cull vadhatat, parinami dhatunche bashpikaran karnyasathi puresha prabhav vegacha 0.5 mail kalavadhi hoto. jarr see. bii. chaundriteschi nirmiti jupiterchya sthalantaramule jhaali asatee tarr saurmalechya nirmitinantar 4.5-5 myers jhaale asate.
tytonchya sabhovatalachya daat vatavaranachi upasthiti aanee ganymade aanee calistochya aaspas tyachi anupasthiti hii grand tackchya tulanet tyanchya nirmitichya velemule asoo shakate. jarr bhavya khelipurvi ganymade aanee calisto tayar jhaale asate tarr jupiter suryachya jawal jaat asalyane tyanche vatavaran nasht jhaale asate. tathapi, tytonche pahilya prakarche sthalantar shanimadhye talhanyasathi aanee tytonche vatavaran tikoon rahnyasathi, teey bhavya tacknunter tayar jhaale asave.
itar bhrunanshi jhalelya bhetimule mangalavar firana discala asthir karata yete, jyamule mangalbhovati tayar honanya chandrache vastuman qamee hote. itar grahanshi jhalelya bhetinantar mangal grahacha valayatoon vikharlyanantar, grahanni aateel saurmaletil samagri saaf kareparyant too itar vastunshi bhidato. yaa sandhinmule mangalachi kaksha itar grahanpasoon vighatit houu shakate aanee sthir kakshet rahoo shakate, parantu jyaa padarthatoon mangalache chandra tayar hotat tyaa padarthachya pattyamadhye dekhil teey vyatyay aanoo shakatat. yaa vikshobhanmule samagri mangalachya kakshetoon baher padate kinwa tyachya prushthbhagavar parinam hoto jyamule diskche vastuman qamee hote jyamule lahan chandra tayar hotat.
sambhavya samasya.
jarr mangal pruthvi aanee shukrapeksha vegali rachana asel tarr grand tackdware tayar jhalelya samgrichya arund valayabaher mangalachi bahutek vaadh jhaali asavi. grand tackdware tayar kelelya enyulasmadhye vadhanare grah samaan rachnansah samapt hotat. jarr grand tack lavkar jhaala, tarr mangal banalela bhrun tulanene lahan hota, jarr too tyaeivaji bahya aanee aatalya bajula laghugrahanpramane vikhurlela asel tarr bhinn rachana asalela mangal tayar houu shakato. asey ghadanyachi shakyata andaje 2 takke aahe.
nantarchya abhyasatoon asey disun aale aahe qee lupt hott jaananya saur nihariketil jupiter aanee satternche abhisari kakshiy sthalantar heey 3h2 sarasari-gatee anunad sthapit karanyachi shakyata nahee. jalad palatya sthalantarala aadhar denyaeivaji, niharikechya paristhitimule shanivarche haloohaloo sthalantar hote aanee 2:1 chya sarasari-gatee anunadat teey pakadale jaate. 2: 1 sarasari-gatee anunadamadhye jupiter aanee shaniwar pakadane samanyatah sthalantarachi disha ulatat nahee, parantu vishisht niharikechi sanrachana olakhali gelee aahe jee bahya sthalantaras chalana deu shakate. tathapi, yaa sanrachana jupiter aanee satternchya kakshiy vilakshantela tyanchya vastavik mulyanpeksha done teey teen putt mothya mulyanparyant uttejit karatat. tasech, jarr vayuche tapman aanee chikatpana yamule shanee adhik khol antar nirman karoo dett asel, tarr parinami nivval torq punha nakaratmak houu shakato, parinami pranaliche antargat sthalantar hote.
bhavya tack paristhiti jupiter aanee shaniwar yaa donhi thikani gasschya chaloo vadhikade durlaksh karate. kharey tarr, bahya sthalantar karnyasathi aanee grahanna tyanchya sadhyachya kakshanchya jawal nenyasathi, saur nihariket done grahanchya kakshambhovati vayucha puresa motha satha asane aavashyak hote. tathapi, haah vayoo vadhisathi eka srot pradan karel, jyamule jupiter aanee satternchya vadhivar aanee tyanchya vastuman gunottaravar parinam hoil. 3h2 chya sarasari-gatee anunadamadhye pakadanyasathi aavashyak asalelya niharikechya ghanatecha prakar done grahanchya astitvasathi visheshtah dhokadayak aahe, kaaran yamule lakshaniy vastuman vaadh houu shakate aanee tyanantar grah-grahache vikhurane houu shakate. parantu 2:1 chya sarasari-gatee anunad pranalinkade nenanya paristhitimule grah dhokyat yeu shakatat. donhi grahanvar vayuche sanchay dekhil aateel diskkade puravatha qamee karato, jyamule suryakade vadhicha darr qamee hoto. hii prakriya jupitarchya kakshet diskchya aateel bhagala kahise qamee karnyasathi karya karate, jupitarvaril toke kamkuvat karate jeey aateel lindblad anunadamule udbhavate aanee grahanche bahya sthalantar sambhavyapane samapt karate.
paryay.
mangalachya chhotya vastumanache spashtikaran denyasathi anek gruhitak sadar kele gele aahet. eka lahan mangal hii qamee sambhavyata asaleli ghatana asoo shakate kaaran tee sampoorn aateel saur mandalat vitarit kelelya grahanpasoon suru honanya anukarananchya chhotya, parantu shunyetar anshat udbhavate. grah tayar honyapurvi aanakhi aatalya dishene ghan padarth sarkat asalyamule tyacha pradesh mothya pramanat rikama asalyamule eka lahan mangal grah houu shakato. chhan pratimanat varnan keleli vishal grah asthirata lavkar jhaali asatee tarr bahutek vastuman mangal pradeshatoon tayar honyapurvi kadhoon takale jaau shakale asate. jarr pruthvivaril grahanmadhye grahanchi aanee garbhanchi bahutek vaadh hii kankananchya vadhimule jhaali asatee, tarr eka lahan mangal haah parinam asoo shakato qee suryapasoon vadhatya antaramule hii prakriya qamee karyaksham jhaali asel. vayoo discommadhil grahanchya bhrunanche 1 aii. yuu. kadey abhisaran kelyane, mangal grahala adakalela bhrun mhanoon sodoon, yaa antarachya jawalach sthaliy grahanchi nirmiti hoil. gass disk saaf kartana pasarnare dharmnirpeksh anunad dekhil zep aanee utkendrata uttejit karoo shakatat, jyamule sapeksh veg vadhatat jenekarun takkaranmule sanchay honyaeivaji vikhandan hote. yapaiki anek gruhitak laghugrah pattyache qamee vastuman dekhil spasht karoo shakatat.
laghugrahanchya kakshiy utkendrata aanee cull aanee laghugrah pattyache qamee vastuman spasht karnyasathi anek gruhitak dekhil prastavit kele gele aahet. jarr laghugrah pattyacha pradesh suruvatila tethe tayar honanya kahee grahanmule rikama asata tarr tyat jupiter aanee satternchya vayoo sanchayadarmyan aatalya dishene vikhuralelya barfal grahanni aanee tayar honanya sthaliy grahandvare baherchya dishene vikhuralelya dagadi laghugrahanni vastee kelee asatee. aatalya bajula vikhurlele barfal grahadekheel pruthvichya pradeshat paanee pohochavu shakatat. jarr jupiter aanee satternchya anunadit kaksha changlya pratimanachya asthiratepurvi astavyast jhalya asatya tarr suruvatila qamee vastuman asalelya laghugrah pattyamadhye tyachya kakshiy vilakshanata aanee dharmnirpeksh anunadanni uttejit jhalele cull asoo shakale asate. yaa laghugrahatil utkatata aanee cull yaa vishal grahachya asthiratechya kalat uttejit houu shakatat, jarr too kahee laakh varshe tikala tarr too nirikshan kelelya pataliparyant pohochu shakato. suruvatila mothya laghugrah pattyatil laghugrah aanee bhrun yanchyatil gurutviya parasparsanvadamule laghugrahanchya ardh-pramukh akshanmadhye badal karoon heey parinam vadhatil, anek laghugrahanna asthir kakshet nele jaeel jithe teey grahanshi parasparsanvadamule kadhoon takale gele hote, parinami tyache vastuman 99 takkyanhun adhik qamee hoil. gass diskchya apvyayadarmyan pasarana dharmnirpeksh anunadamule laghugrahanchya kakshanna uttejan miloo shakale asate aanee tyanchya utkranti uttejit jhalyanantar gass odhalyamule teey suryakade saraktana anek door jaau shakale asate. 
pruthvichya jawal firana atee-pruthvichya aanee paryache lahan vastuman naslyabaddal anek gruhitak dekhil sadar kele gele aahet. 
jarr jupitercha gabha suryachya jawal tayar jhaala asata, tarr aateel saur mandalamadhye tyache bahya sthalantar tyachya anunadamadhye samagreela baherchya dishene dhakalu shakale asate, jyamule shukra kakshachya aateel pradesh qamee jhaala asata. disk vaayaatoon vikasit hott asalelya protoplanetary diskmadhye, grahanche bhrun grah tayar karnyasathi villin honyapurvi baherchya dishene sthalantarit jhaale asavet, jyamule saur mandal paryachya kakshet grahanshivay rahoo shakel. vayoo discommadhil grahanchya bhrunanche 1 aii. yuu. kadey abhisaran kelyane yaa antarachya jawal mothe sthaliy grah tayar jhaale asate jyamule paaraa eka adakalela bhrun mhanoon urala asata. asthiratechya kalat jhalelya vinashkari takkaranmule aateel grahanchi prarambhik pidhi nasht jhaali asatee, parinami avashesh itake lahan hote qee teey pointing-robertson dragmule nasht houu shakatat. jarr grahanchi nirmiti keval lavkar jhaali asatee, tarr grahanchya diskchi aateel dhaar yaa velee silicate sankshepan reshevar sthit asoo shakate. paryachya kakshachya jawal grahanchya nirmitisathi taache chumbakeey kshetra diskchya paribhramanasaha sanrekhit karane aavashyak asoo shakate, jyamule vayoo qamee houu shakel jenekarun ghan teey vayoo gunottar pravahatil asthirata nirman karnyasathi puresha mulyanparyant pohochel. atee-pruthvichya nirmitisathi suruvatichya sauramalepeksha aateel dishene vahana dagadancha jaast pravah aavashyak asoo shakato. 0. 0 aii. yuu. peksha jawal asalelya protoplanetary diskmadhye pradakshina ghalanare grah kadachit eka tivra vavyamule nasht jhaale asateel. mothya pramanat samagreene sampalelya suruvatichya saurmalemule lahan grahanchi nirmiti houu shakali asatee jee suruvatichya asthiratet haravali kinwa nasht jhaali hotee aanee keval paaraa kinwa keval paaraa tayar jhaala hota.