Confinement and internal structure of radiatively accelerated quasar clouds

Journal Article · Wed Sep 01 04:00:00 EDT 1976 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/154605· OSTI ID:7337294

Weymann, R

The equation of transfer for Lyman ..cap alpha.. and the Lyman continuum is solved for plane-parallel slabs of hydrogen with optical depths up to 25,000 in the line center to find the radiative acceleration as a function of position in the slab. The distribution of gas pressure and density which yields a constant acceleration and which matches the prescribed external pressure on the boundaries is then found. For optical depths less than about 36, solutions are obtained for arbitrarily low ratios of external pressure to incident radiation pressure. For optical depths larger than this, solutions are possible only if this ratio exceeds a critical value, and the acceleration of the cloud goes to zero and the column density to infinity as this critical value is approached. (AIP)

• Research Organization: Steward Observatory, University of Arizona
• OSTI ID: 7337294
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 208:2; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640103* -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
COSMIC RADIO SOURCES
IONIZATION
MATHEMATICAL MODELS
OPACITY
OPTICAL PROPERTIES
PHOTOIONIZATION
PHYSICAL PROPERTIES
PLASMA ACCELERATION
QUASARS
RADIATION TRANSPORT
RECOMBINATION
STAR EVOLUTION
STAR MODELS