Super-Eddington Accretion-Disk Models for SS 433
[摘要] Weexaminehighlysuper-EddingtonaccretiondiskmodelsontoaneutronstarforSS433,basedontwo-dimensionalhydrodynamicalcalculations.Thesuper-Eddingtonaccretionflowsformakindofstandingshockelongatedalongtherotationalaxisofthedisk.Thisresultsinaveryrarefied,hot,opticallythinregionbetweentheshockandtheaxis.Theanisotropicradiationfieldsinthisregionacceleratetheflowstorelativisticjetsof∼0.2cwithacollimationangleof∼10°–25°.Theaccretiondiskishighlyconvectiveorturbulentneartotheequatorialplane,andisverygeometricallythick.Mostoftheinputaccretingmatterisblownofffromthesystemthroughthejetsandthediskwind.Thesuper-EddingtonaccretiondiskmodelsarepromisingtoexplainSS433.
[发布日期] [发布机构]
[效力级别] [学科分类] 天文学(综合)
[关键词] "accretion disks";"stars: individual (SS 433)";"stars: neutron" [时效性]
