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Podvijni sistemi dvoh masivnih ob yektiv sho obertayutsya odne navkolo odnogo vazhlive dzherelo dlya gravitacijno hvilovoyi astronomiyi Sistema viprominyuye gravitacijni hvili pid chas obertannya yaki zmenshuyut tenzor napruzhen energiyi impulsu en sprichinyuyuchi zmenshennya orbiti 1 2 Tut pokazana podvijna sistema bilih karlikiv vazhlive dzherelo dlya kosmichnih detektoriv yak eLISA Mozhlive zlittya bilih karlikiv mozhe privesti do nadnovoyi predstavlene vibuhom na tretomu malyunku Gravitacijno hvilova astronomiya ye galuzzyu sposterezhnoyi astronomiyi sho rozvivayetsya i pragne vikoristovuvati gravitacijni hvili najdribnishi vikrivlennya prostoru chasu peredbacheni zagalnoyu teoriyeyu vidnosnosti Ejnshtejna dlya zboru danih sposterezhen pro ob yekti taki yak nejtronni zori j chorni diri pro taki podiyi yak vibuhi nadnovih i procesiv vklyuchayuchi vlastivosti rannogo vsesvitu nezabarom pislya togo yak stavsya velikij vibuh Gravitacijni hvili mayut teoretichnu bazu zasnovanu na teoriyi vidnosnosti Voni buli vpershe peredbacheni Ejnshtejnom 1916 roku navit hocha voni lishe konkretnij naslidok zagalnoyi teoriyi vidnosnosti ta voni ye spilnoyu risoyu vsih teorij gravitaciyi yaki pidkoryayutsya specialnij teoriyi vidnosnosti 3 Nepryami dani pidtverdzhennya yih isnuvannya vpershe z yavilisya 1974 roku z vimiryuvan podvijnoyi zoryanoyi sistemi Galsa Tejlora PSR B1913 16 chiya orbita zminyuyetsya same tak yak i slid bulo ochikuvati u vipadku viprominyuvannya gravitacijnih hvil 4 Rassel Gals i Dzhozef Tejlor buli nagorodzheni 1993 roku Nobelivskoyu premiyeyu z fiziki za ce vidkrittya 5 Zgodom sposterigalosya bagato pulsariv u podvijnih sistemah vklyuchayuchi odnu sistemu podvijnih pulsariv PSR J0737 3039 i povedinka yih usih uzgodzhuvalasya z peredbachenoyu teoriyeyu gravitacijnih hvil 6 11 lyutogo 2016 roku bulo ogolosheno sho LIGO vpershe bezposeredno sposterigav gravitacijni hvili u veresni 2015 roku 7 8 9 Zmist 1 Sposterezhennya 1 1 Visokochastotni 1 2 Nizkochastotni 1 3 Serednochastotni 2 Naukovij potencial 2 1 Pid chas kosmichnoyi inflyaciyi 3 Rozvitok 4 Primitki 5 Podalshe chitannya 6 PosilannyaSposterezhennya red nbsp Krivi shumu dlya viboru detektoriv gravitacijnih hvil zalezhno vid chastoti Na duzhe nizkih chastotah pracyuyut masivi pulsacij pulsariv angl Pulsar timing arrays zokrema yevropejskij EPTA angl European Pulsar Timing Array i mizhnarodnij IPTA angl International Pulsar Timing Array Na nizkih chastotah pracyuyut kosmichni detektori taki yak ranishe zaproponovana kosmichna antena lazernogo interferometra KALI angl LISA i yiyi onovlenij variant rozvinuta kosmichna antena lazernogo interferometra RKALI angl eLISA a na visokih chastotah pracyuyut nazemni detektoriv pochatkovij lazerno interferometrichna gravitacijno hvilova observatoriya LIGO angl LIGO i yiyi vdoskonalenij variant nastrojki VLIGO angl aLIGO Harakteristichna deformaciya napruzhenist potencijnih astrofizichnih dzherel takozh pokazana Shob mozhna bulo viyaviti signal jogo harakteristichna deformaciya napruzhenist povinna buti vishe krivoyi shumu 10 Zvichajni chastoti gravitacijnih hvil duzhe nizki i tomu yih nabagato vazhche viyaviti u toj chas yak hvili z vishimi chastotami traplyayutsya pid chas dramatichnishih podij i takim chinom voni stali pershimi sposterezhuvanimi hvilyami Visokochastotni red U 2015 2016 rokah proekt LIGO buv pershim v yakomu bezposeredno sposterigalisya gravitacijni hvili za dopomogoyu lazernih interferometriv 11 12 Detektori LIGO sposterigali gravitacijni hvili vid zlittya dvoh chornih dir zoryanoyi masi sho uzgodzhuvalisya z peredbachennyami zagalnoyi teoriyi vidnosnosti Ci sposterezhennya pokazali isnuvannya podvijnih sistem chornih dir zoryanoyi masi i stali pershim pryamim viyavlennyam gravitacijnih hvil i pershim sposterezhennyam procesu zlittya podvijnoyi sistemi chornih dir 13 Ce vidkrittya bulo oharakterizovane yak revolyucijne dlya nauki cherez perevirku nashoyi zdatnosti vikoristovuvati gravitacijno hvilovu astronomiyu dlya progresu v nashomu poshuku i doslidzhenni temnoyi materiyi i Velikogo vibuhu Isnuyut dekilka potochnih naukovih spivrobitnictv dlya sposterezhennya gravitacijnih hvil Isnuye vsesvitnya merezha nazemnih detektoriv ce kilometrovih lazernih interferometriv v tomu chisli lazerno interferometrichna gravitacijno hvilova observatoriya LIGO spilnij proekt Massachusetskogo tehnologichnogo institutu Kalifornijskogo tehnologichnogo institutu i vchenih Naukovogo spivrobitnictva LIGO en z detektorami v Livingstoni shtat Luyiziana i na misci Genfordskogo kompleksu Virgo v Yevropejskij gravitacijnij observatoriyi en v municipaliteti Kashina poblizu Pizi v Italiyi GEO600 v Zarshtedti poblizu Gannovera v Nimechchini i Kamiokskij detektor gravitacijnih hvil KAGRA yakim keruye Tokijskij universitet v Kamiokskij observatoriyi v pidzemelli shahti Mozumi v Kamiokskij chastini mista Hida Gifu u prefekturi Gifu v Yaponiyi LIGO i Virgo modernizuyut 2016 roku do yih polipshenih konfiguracij Polipshenij detektor LIGO pochav sposterezhennya 2015 roku viyavivshi gravitacijni hvili popri te sho na toj chas she ne dosyag maksimumu svoyeyi chutlivosti ochikuyetsya sho polipshenij detektor Virgo pochne sposterezhennya 2016 roku Modernizaciyu detektora KAGRA zaplanovano na 2018 rik GEO600 v danij chas pracyuye ale jogo chutlivist robit malojmovirnim mozhlivist detektuvannya hvil jogo osnovnoyu metoyu ye viprobuvannya tehnologiyi Nizkochastotni red Alternativnij zasib sposterezhennya ce vikoristannya masiviv pulsacij pulsaru Ye tri konsorciumi yevropejskij masiv pulsacij pulsariv EPTA Pivnichnoamerikanska nanogercna observatoriya gravitacijnih hvil NANOGrav i Radioteleskop Parkes yaki vsi razom spivpracyuyut yak mizhnarodnij masiv pulsacij pulsariv IPTA Voni vikoristovuyut isnuyuchi radioteleskopi ale oskilki voni chutlivi do chastot v nanogercnomu diapazoni dlya viyavlennya signalu potribno bagato rokiv sposterezhennya a chutlivist detektora polipshuyetsya postupovo Potochni ocinki nablizhayutsya do ochikuvanih dlya astrofizichnih dzherel 14 Serednochastotni red Krim togo v majbutnomu isnuye mozhlivist zastosuvannya kosmichnih detektoriv Yevropejske kosmichne agentstvo vibralo gravitacijno hvilovu misiyu yak yiyi misiyu L3 iz zapuskom 2034 roku potochnoyu koncepciyeyu ye rozvinuta kosmichna antena lazernogo interferometra RKALI eLISA 15 Takozh na stadiyi rozrobki perebuvaye yaponska decigercno interferometrichna gravitacijno hvilova observatoriya en DECIGO Naukovij potencial red Astronomiya tradicijno pokladalasya na elektromagnitne viprominyuvannya Astronomiya vinikla z astronomiyi vidimogo svitla en i z togo sho mozhna bulo pobachiti neozbroyenim okom Iz rozvitkom tehnologij stalo mozhlivim sposterigati inshi chastini elektromagnitnogo spektra pochinayuchi z radio viprominyuvannya azh do gamma promeniv Kozhna nova smuga chastot davala novij poglyad na Vsesvit i provishuvala novi vidkrittya 16 Naprikinci 20 go stolittya reyestraciya sonyachnih nejtrino zasnuvalo novu galuz nejtrinnoyi astronomiyi sho daye uyavlennya pro ranishe nevidimi yavisha taki yak vnutrishni procesi yaki vidbuvayutsya vseredini Soncya 17 18 Sposterezhennya gravitacijnih hvil zabezpechuyut dodatkovi sposobi provedennya astrofizichnih sposterezhen Gravitacijni hvili zabezpechuyut dopovnyuvalnu informaciyu do tiyeyi yaka otrimana inshimi zasobami Kombinuyuchi sposterezhennya odniyeyi podiyi z vikoristannyam riznih zasobiv mozhna otrimati bilsh povne uyavlennya pro vlastivosti dzherela Ce vidome yak bagato peredavachna astronomiya Gravitacijni hvili takozh mozhna vikoristovuvati dlya sposterezhennya sistem yaki ye nevidimimi abo yaki majzhe nemozhlivo viyaviti shob vimiryati yih bud yakimi inshimi zasobami napriklad voni zabezpechuyut unikalnij metod vimiryuvannya vlastivostej chornih dir Gravitacijni hvili mozhut viprominyuvatisya bagatma sistemami ale dlya togo shob stvoriti signal yakij mozhna viyaviti dzherelo maye skladatisya z duzhe masivnih ob yektiv sho ruhayutsya iz shvidkistyu blizkoyu do shvidkosti svitla Osnovnim dzherelom ye podvijni sistemi z dvoh kompaktnih ob yektiv Prikladi takih sistem Kompaktni podvijni sistemi sho skladayutsya z dvoh ob yektiv zoryanih mas sho obertayutsya blizko odin do odnogo taki yak bili karliki nejtronni zori abo chorni diri Shirshi podvijni sistemi yaki mayut nizhchi orbitalni chastoti ye dzherelom dlya detektoriv takih yak LISA 19 20 Blizhchi podvijni sistemi formuyut signal dlya nazemnih detektoriv takih yak LIGO 21 Nazemni detektori potencijno mozhut viyaviti podvijni sistemi sho mistyat chornu diru serednoyi masi abo kilka soten sonyachnih mas 22 23 Podvijni sistemi nadmasivnih chornih dir sho skladayutsya z dvoh chornih dir z masami 105 109 mas Soncya Nadmasivni chorni diri perebuvayut u centrah galaktik Koli galaktiki zlivayutsya to ochikuyetsya sho yihni centralni nadmasivni chorni diri tezh zlivayutsya 24 Voni ye potencijno najguchnishimi gravitacijno hvilovimi signalami Najmasivnishi podvijni sistemi ye dzherelom dlya masiviv pulsacij pulsariv 25 Mensh masivni podvijni sistemi blizko miljona mas Soncya ye dzherelom dlya kosmichnih detektoriv takih yak LISA 26 Sistemi ekstremalnogo masovogo spivvidnoshennya kompaktnogo ob yekta zoryanoyi masi sho obertayetsya navkolo nadmasivnoyi chornoyi diri Voni ye dzherelami dlya detektoriv takih yak LISA 26 Sistemi z visokim ekscentrisitetom orbiti stvoryuyut vibuh gravitacijnogo viprominyuvannya oskilki voni prohodyat cherez pericentr 27 Sistemi z majzhe krugovimi orbitami yaki yak ochikuyetsya budut sposterigatisya v kinci orbitalnogo zblizhennya viprominyuyut neperervnij spektr u mezhah smugi chastot detektora LISA 28 Orbitalne zblizhennya ekstremalnogo masovogo spivvidnoshennya mozhna sposterigati na prikladi bagatoh orbit Ce robit yih chudovimi zondami fonovoyi geometriyi prostoru chasu sho dozvolyayut vikonati tochni viprobuvannya zagalnoyi teoriyi vidnosnosti 29 Na dodachu do podvijnih sistem ye j inshi potencijni dzherela Nadnovi generuyut visokochastotni spleski gravitacijnih hvil yaki mozhut buti viyavleni za dopomogoyu LIGO abo Virgo 30 Nejtronni zirki sho obertayutsya ye dzherelom bezperervnih visokochastotnih hvil yaksho voni mayut osovu asimetriyu 31 32 Ranni procesi vsesvitu taki yak inflyaciya abo fazovij perehid 33 Kosmichni struni yaksho voni isnuyut takozh mozhut viprominyuvati gravitacijne viprominyuvannya 34 Viyavlennya takih gravitacijnih hvil pidtverdit isnuvannya kosmichnih strun Gravitacijni hvili slabo vzayemodiyut z rechovinoyu Ce prichina chomu yih vazhko viyaviti Ce takozh oznachaye sho voni mozhut vilno podorozhuvati po Vsesvitu a ne buti poglinutimi abo rozsiyanimi podibno do elektromagnitnogo viprominyuvannya Takim chinom mozhna pobachiti centr shilnih sistem yak oserdya nadnovoyi abo Galaktichnogo Centru Krim togo mozhna bachiti bilsh daleki podiyi v minulomu nizh vikoristovuyuchi elektromagnitne viprominyuvannya yak rannij Vsesvit buv neprozorim do svitla pered rekombinaciyeyu ale prozorim dlya gravitacijnih hvil Zdatnist gravitacijnih hvil vilno prohoditi kriz rechovinu takozh oznachaye sho gravitacijno hvilovij detektori na vidminu vid zvichajnih teleskopiv ne obmezheni polem zoru a sposterigayut vse nebo Odnak detektori chutlivishi u deyakih napryamkah nizh inshih sho ye odniyeyu z prichin chomu vigidno mati merezhu detektoriv 35 Pid chas kosmichnoyi inflyaciyi red Kosmichna inflyaciya gipotetichnij period koli Vsesvit shvidko rozshiryuvavsya pid chas 10 36 sekundi pislya togo yak stavsya Velikij vibuh dav bi pidvishennya gravitacijnih hvil voni b zalishili harakternij slid u polyarizaciyi reliktovogo viprominyuvannya 36 37 Mozhna rozrahuvati vlastivosti pervinnih gravitacijnih hvil za vimiryuvannyami mikrohvilovogo viprominyuvannya i vikoristovuvati ce shob diznatisya pro rannij Vsesvit Znovu zh taki gravitacijni hvili bezposeredno ne viyavleni ale yih nayavnist maye buti vivedena z inshih astronomichnih metodiv Rozvitok red nbsp Kimnata upravlinnya LIGO u GenfordiYak moloda galuz doslidzhen gravitacijno hvilova astronomiya perebuvaye v stadiyi rozvitku prote isnuye konsensus v ramkah astrofizichnoyi spilnoti sho cya galuz bude prodovzhuvati rozvivatisya shob stati viznanoyu komponentoyu bagato peredavachnoyi astronomiyi 21 go stolittya Gravitacijno hvilovi sposterezhennya dopovnyuyut sposterezhennya elektromagnitnogo spektru 38 39 Ci hvili takozh obicyayut dati informaciyu yaku ne mozhlivo otrimati za dopomogoyu viyavlennya ta analizu elektromagnitnih hvil Elektromagnitni hvili mozhut poglinatisya i povtorno viprominyuvatisya sho uskladnyuye proces otrimannya informaciyi pro dzherelo Gravitacijni hvili tim ne menshe tilki slabo vzayemodiyut z rechovinoyu a ce oznachaye sho voni ne rozsiyuyutsya abo poglinayutsya Ce povinno dozvoliti astronomam pobachiti novimi sposobami centr nadnovoyi zirkovih tumannostej i navit zitknennya galaktichnih yader Nazemni detektori dayut novu informaciyu pro fazu orbitalnogo 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