Physics
Scientific paper
Dec 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...419...78s&link_type=abstract
Astrophysical Journal v.419, p.78
Physics
41
Accretion, Accretion Disks, Black Hole Physics, Galaxies: Active, Galaxies: Nuclei, Radiation Mechanisms: Miscellaneous
Scientific paper
Vertical structure and emission spectrum of accretion disks for active galactic nuclei are determined by solving hydrostatic equilibrium and radiative transfer self-consistently for given column density and accretion rate. Numerical calculations are performed for a radial position at 5 times Schwarzschild radius with a black hole mass of 108 Msun. The heating rate is assumed to be proportional to the mass density. We found that the emission spectrum deviates from the blackbody spectrum owing to a combined effect of electron scattering and temperature gradient. For a fixed column density corresponding to the total Thomson scattering depth of 1000, the peak of the emission spectrum moves from ultraviolet to soft X-ray range as the accretion rate increases. An inversion in the temperature distribution appears for an accretion rate higher than 10% of the Eddington luminosity. For a lower column density at high accretion rates, we found an optically thin, two-temperature and Comptonized bremsstrahlung dominated but still radiation pressure dominated disk.
Shimura Toshiya
Takahara Fumio
No associations
LandOfFree
Vertical Structure and Emission Spectrum of an Accretion Disk around a Massive Black Hole does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Vertical Structure and Emission Spectrum of an Accretion Disk around a Massive Black Hole, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vertical Structure and Emission Spectrum of an Accretion Disk around a Massive Black Hole will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-784787