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首页> 外文期刊>PASJ: Publications of the Astronomical Society of Japan >Relativistic Radiation Hydrodynamical Accretion-Disk Winds
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Relativistic Radiation Hydrodynamical Accretion-Disk Winds

机译：相对论辐射流体动力吸积盘风

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摘要

Accretion-diskwindsblowingoffperpendiculartoaluminousdiskareexaminedwithintheframeworkoffullyspecialrelativisticradiationhydrodynamics.Thewindisassumedtobesteady,vertical,andisothermal.Usingavelocity-dependentvariableEddingtonfactor,wecansolvetherigorousequationsofrelativisticradiativehydrodynamics,andcanobtainradiativelydrivenwindsaccelerateduptorelativisticspeeds.Forless-luminouscases,diskwindsaretransonictypespassingthroughsaddle-typecriticalpoints,andthefinalspeedsofthewindsincreaseasthediskfluxand/ortheisothermalsoundspeedincrease.Forluminouscases,ontheotherhand,diskwindsarealwayssupersonic,sincethecriticalpointsdisappearduetothecharacteristicnatureofthediskgravitationalfields.Theboundarybetweenthetransonicandsupersonictypesislocatedataround$$hat{F}_{ mc}sim0.1(varepsilon+p)/( hoc^2)/gamma_{ mc}$$,where$$hat{F}_{ mc}$$istheradiativefluxatthecriticalpointnormalizedbythelocalEddingtonluminosity,$$(varepsilon+p)/( hoc^2)$$istheenthalpyofthegasdividedbytherest-massenergy,and$$gamma_{ mc}$$istheLorentzfactorofthewindvelocityatthecriticalpoint.Intransonicwinds,thefinalspeedbecomes0.4a€“0.8$$c$$fortypicalparameters,whileitcanreach$$simc$$insupersonicwinds.
机译：积-diskwindsblowingoffperpendiculartoaluminousdiskareexaminedwithintheframeworkoffullyspecialrelativisticradiationhydrodynamics.Thewindisassumedtobesteady，垂直，andisothermal.Usingavelocity-dependentvariableEddingtonfactor，wecansolvetherigorousequationsofrelativisticradiativehydrodynamics，andcanobtainradiativelydrivenwindsaccelerateduptorelativisticspeeds.Forless-luminouscases，diskwindsaretransonictypespassingthroughsaddle-typecriticalpoints，andthefinalspeedsofthewindsincreaseasthediskfluxand / ortheisothermalsoundspeedincrease.Forluminouscases，ontheotherhand，diskwindsarealwayssupersonic，sincethecriticalpointsdisappearduetothecharacteristicnatureofthediskgravitationalfields.Theboundarybetweenthetransonicandsupersonictypesislocatedataround $$帽子{F} _ {MC} SIM0 .1（varepsilon + p）/（hoc ^ 2）/ gamma_ {mc} $$，其中$$ hat {F} _ {{mc} $$是在通过局部Eddington发光度标准化的临界点的辐射通量，$$（varepsilon + p）/（hoc ^ 2）$ $是热能除以的一半，而$γ_{在跨音速风中，最终速度变为0.4到0.8的典型参数，而在超音速风中它可以达到$ simc $。

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