The radial profile of temperature in the inner region of a black-hole accretion disk is investigated in detail and it is found (1) that the temperature does not decrease monotonically in the radial direction, rather, a peak exists near the inner edge of the disk, separated from it by a ...
Black hole, cosmic body of extremely intense gravity from which nothing, not even light, can escape. It can be formed by the death of a massive star wherein its core gravitationally collapses inward upon itself, compressing to a point of zero volume and
We consider the stationary problem of accretion on a nonrotating black hole. Advection is taken into account and used bridging formula for radiative loses at high and low effective optical depths. Investigate the global solutions for the accretion disc, describing the continuous transition between ...
BlackHolewiththeAccretionDisk黑洞吸积盘 系统标签: accretiondiskholeblack黑洞edr arXiv:astro-ph/0009453v128Sep2000RelativisticEffectsonNeutrinoPairAnnihilationaboveaKerrBlackHolewiththeAccretionDiskKatsuakiAsano1andTakeshiFukuyama21DepartmentofEarthandSpaceScience,GraduateSchoolofScience,OsakaUniversity,Toyonaka560-004...
Gravastars, hypothetic astrophysical objects, consisting of a dark energy condensate surrounded by a strongly correlated thin shell of anisotropic matter, have been proposed as an alternative to the standard black hole picture of general relativity. Observationally distinguishing between astrophysical black...
Using a sample of disk dominated ob... SW Davis,C Done,OM Blaes - 《Astrophysical Journal》 被引量: 168发表: 2006年 Disk accretion onto a black hole at subcritical luminosity The influence of radiation pressure on the structure of accretion disk is considered when the total luminosity L ...
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For specific values of the spin parameter and of the scalar charge, the energy flux from the disk around a rotating naked singularity can exceed by several orders of magnitude the flux from the disk of a Kerr black hole. In addition to this, it is also shown that the conversion efficiency...
The temperature ratio Gauss–Bonnet black hole to the Schwarzschild one is illustrated in Figure 4. Sometimes, the difference between the temperature of a GR black hole and a Gauss–Bonnet one can be considerably large, and even exceed 5%, which makes these types of black holes experimentally ...
the central engines of the stellar mass accreting X-ray binary systems are thought to be primarily and generally from accretion disks (and coronae) and collimated jets, respectively, which provide an observational avenue to investigate the disk and jet correlation with the black hole mass [39]....