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 ...
effects due to the central Schwarzschild black hole and concluded that the gravitational effects do not substantially change EDR. However, AF did not consider the effects of the rotation and temperature gradient of the accretion disk. EDR is proportional to T 9 eff , where T eff ...
Analysis of the light curves of outbursts in black-hole X-ray binaries suggests that throughout the accretion process mass is lost from the accretion disks through strong, magnetically driven disk winds. Black holes, neutron stars and white dwarfs in clo
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 ...
black hole accretion disk 读音:美英 black hole accretion disk基本解释 黑洞吸积盘 分词解释 black黑(色)的 hole洞,孔 accretion堆积 disk磁盘
Y. Tanaka, et al., "Gravitationally Redshifted Emission Implying an Accretion Disk and Massive Black- Hole in the Active Galaxy MCG:-6-30-15", Nature, 375, 659 (1995)Y. Tanaka, K. Nandra, A. C. Fabian, H. Inoue, C. Otani, T. Dotani, K. Hayashida, K. Iwasawa, T. Kii, H...
The astronomers initially selected this galaxy to validate accepted models about lower-luminosity active galaxies—those with black holes that are on a meager diet of material. Models predict that an accretion disk forms when ample amounts of gas are trapped by a black hole’s strong gravitational...
When luminosity of black hole accretion disks is greater than 0.06 Eddington luminosity ( \\(L \\geq0.06 L_{E} \\) ), according to standard disk model, the inner region of these disks is radiation-pressure dominated (RPD) and unstable in thermal and viscous modes. Whereas this object ...
which demonstrates that modern all-sky surveys have much to reveal. The black hole in this quasar accretes around one solar mass per day onto an existing mass of∼17 billion solar masses. In this process, the accretion disk alone releases a radiative energy of 2 × 1041 W. If th...
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...