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Zalishkovij disk ce disk z pilu ta ulamkiv yakij obertayetsya navkolo zirki Inkoli takij disk maye pomitni kilcya yak na zobrazheni Fomalgauta sprava Zalishkovi diski buli viyavleni navkolo zrilih ta molodih zirok Zalishkovij disk buv viyavlenij prinajmni navkolo odniyeyi sformovanoyi nejtronnoyi zori 1 Molodi zalishkovi diski mozhut vidznachati soboyu fazu formuvannya planetnoyi sistemi za yakoyu sliduye faza protoplanetnogo diska u yakij zakinchuyut formuvannya planeti zemnogo tipu 2 Voni takozh mozhut utvoryuvatisya ta isnuvati yak zalishki zitknennya planetezimalej takih yak asteroyidi chi kometi 3 Znimok zalishkovogo kilcya navkolo Fomalgauta vikonanij teleskopom Gabbl Vnutrishnij obris disku mig sformuvatisya orbitoyu Fomalgauta B vnizu sprava Bulo zaproponovano priyednati cyu stattyu abo rozdil do Navkolozoryanij disk ale mozhlivo ce varto dodatkovo obgovoriti Propoziciya z bereznya 2021 Na 2001 rik bulo viyavleno bilshe 900 potencijnih zir iz zalishkovimi diskami Zazvichaj yih viyavlyayut za dopomogoyu vivchennya zoryanih sistem v infrachervonomu svitli shukayuchi nadlishok radiaciyi porivnyano z tim sho maye nadhoditi vid zori Vvazhayetsya sho cej nadlishok radiaciyi poglinayetsya pilom z diska a potim vidilyayetsya u formi infrachervonogo viprominyuvannya 4 Zalishkovij disk chasto opisuyut yak masivnij analog ulamkiv Sonyachnoyi sistemi Bilshist vidomih diskiv mayut u diametri 10 100 astronomichnih odinic a o voni shozhi na poyas Kojpera u Sonyachnij sistemi prote mistyat nabagato bilshe pilu Deyaki zalishkovi diski mistyat teplij pil roztashovanij u mezhah 10 a o vid centralnoyi zori Takij pil inkoli nazivayut ekzozodiakalnim pilom po analogiyi z zodiakalnim pilom v Sonyachnij sistemi Zmist 1 Istoriya doslidzhennya 2 Pohodzhennya 3 Vidomi poyasi 4 Div takozh 5 PosilannyaIstoriya doslidzhennya Redaguvati nbsp Zobrazhennya diska navkolo AU Microscopii vikonane teleskopami DVT ta Gabbl 5 V 1984 roci za dopomogoyu teleskopa na suputniku IRAS viyavili zalishkovij disk navkolo zori Vega Spochatku vvazhalos sho ce protoplanetnij disk prote narazi jogo vvazhayut zalishkovim diskom cherez vidsutnist gaziv ta vik zori Zgodom v disku buli viyavleni pevni neodnoridnosti yaki mozhut svidchiti pro nayavnist planetarnih utvoren 6 Shozhi zalishkovi diski buli viyavleni navkolo zir Fomalgaut ta Beta Mitcya U roztashovanij nedaleko vid Sonyachnoyi sistemi zoryanij sistemi 55 Raka z p yatma vidomimi planetami tezh nachebto viyavili zalishkovij disk 7 ale ci sposterezhennya narazi ne vdalosya pidtverditi 8 Utvorennya v zalishkovomu disku navkolo Epsilona Eridana dozvolyayut pripustiti sho yih formuvannya vidbulos pid vplivom planetnogo tila na orbiti navkolo zori sho v svoyu chergu mozhna bulo b vikoristati dlya viznachennya masi ta orbiti takoyi planeti 9 24 kvitnya 2014 roku NASA povidomila pro viyavleni zalishkovi diski navkolo dekilkoh molodih zir HD 141943 i HD 191089 na arhivnih zobrazhennyah teleskopa Gabbl sho buli znyati mizh 1999 ta 2006 rokiv zalishkovi diski viyavili zavdyaki pokrashennyu procesu obrobki zobrazhen 10 Pohodzhennya Redaguvati nbsp Zalishkovi diski na arhivnih zobrazhennyah molodih zir HD 141943 i HD 191089 sho viyavleni zavdyaki krashomu procesu obrobki zobrazhen z teleskopa Gabbl 24 kvitnya 2014 Pid chas formuvannya zir shozhih na Sonce voni prohodyat fazu zori tipu t Telcya pid chas yakoyi voni otocheni diskovidnoyu tumannistyu Z cogo materialu formuyutsya planetezimali z yakih na stadiyi akreciyi mozhut utvoritis planeti Tumannist obertayetsya navkolo zori do golovnoyi poslidovnosti vid 1 do 20 mln rokiv poki ne shezne cherez radiacijnij tisk ta inshi procesi Piznishe navkolo zori mozhe zibratisya pil u rezultati zitknen planetezimalej Z zalishkiv cih zitknen utvoryuyetsya disk V pevnij moment zhittya zori prinajmni 45 takih zor otocheni zalishkovim diskom yakij mozhe buti viyavlenij zavdyaki teplovomu viprominyuvannyu pila infrachervonim teleskopom Povtorni zitknennya mozhut prizvesti do togo sho zalishkovij disk bude otochuvati zoryu bilshu chastinu yiyi zhittya 11 Zazvichaj zalishkovij disk mistit zerna rozmirom 1 100 mkm Zitknennya prizvodyat do zmenshennya rozmiru zeren do submikrometrovih yaki potim vidalyayutsya iz zoryanoyi sistemi radiacijnim tiskom golovnoyi zori V ledve pomitnih diskah yak v Sonyachnij sistemi efekt Pojtninga Robertsona mozhe natomist prizvesti do spiralnogo obertannya chastinok z postupovim zmenshennyam radiusu Obidva procesi obmezhuyut trivalist isnuvannya diska do 10 mln rokiv abo menshe Tomu shob disk zalishivsya potribno jogo postijne popovnennya Ce mozhe statisya zavdyaki zitknennyu bilshih til z podalshim kaskadom zitknen u rezultati yakih utvoryuyutsya vidpovidni malenki zerna 12 Dlya togo shob u zalishkovomu disku vidbuvalisya zitknennya potribni dostatni gravitacijni perturbaciyi til yaki zdatni stvoriti vidnosno veliki skorosti zitknennya Planetarna sistema navkolo zori mozhe stati dzherelom takih perturbacij takozh yak kompanjon v podvijnij zoryanij sistemi abo blizkij prohid inshoyi zori Nayavnist zalishkovogo diska mozhe svidchiti pro visoku virogidnist isnuvannya ekzoplaneti zemnogo tipu 13 Vidomi poyasi RedaguvatiPoyasi z pilu chi zalishkiv inshih til viyavleni navkolo bagatoh zir vklyuchno iz Soncem a same Zorya Spektralnijklas 14 Vidstan sv r Orbita a o PrimitkiEpsilon Eridana K2V 10 5 35 75Tau Kita G8V 11 9 35 50 15 Vega A0V 25 86 200 6 16 Fomalgaut A3V 25 133 158 6 AU Microscopii M1Ve 33 50 150 17 HD 181327 F5 5V 51 8 89 110 18 HD 69830 K0V 41 lt 1 19 HD 207129 G0V 52 148 178 20 HD 139664 F5IV V 57 60 109 21 Eta Corvi F2V 59 100 150 22 HD 53143 K1V 60 21 Beta Mitcya A6V 63 25 550 16 Zeta Leporis A2Vann 70 2 8 23 HD 92945 K1V 72 45 175 24 HD 107146 G2V 88 130 25 Gamma Ophiuchi A0V 95 520 26 HR 8799 A5V 129 75 27 51 Ophiuchi B9 131 0 5 1200 28 HD 12039 G3 5V 137 5 29 HD 98800 K5e 150 1 30 HD 15115 F2V 150 315 550 31 HR 4796 A A0V 220 200 32 33 HD 141569 B9 5e 320 400 33 HD 113766 A F4V 430 0 35 5 8 34 HD 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Dust Disks and Rings Surrounding Young Stars Yield Clues HubbleSite Arhiv originalu za 9 kvitnya 2012 Procitovano 17 chervnya 2007 Meyer M R Backman D 8 sichnya 2002 Belt of Material Around Star May Be First Step in Terrestrial Planet Formation University of Arizona NASA Arhiv originalu za 7 chervnya 2011 Procitovano 17 lipnya 2007 Otrimano z https uk wikipedia org w index php title Zalishkovij disk amp oldid 39744415