Aberration and advection effects in expanding spherically symmetric shells
Journal Article
·
· Astrophysical Journal; (United States)
- Indian Institute of Astrophysics, Bangalore (India)
The extreme outer layers of supernovae, novae, AGN, QSOs, and many supergiant stars are known to be in rapid expansion or contraction. In this paper, aberration and advection effects in a spherical medium scattering radiation isotropically and coherently are investigated. The shells are assumed to be moving radially with velocities of 1000, 2000, 3000, 4000, and 5000 km/s. A solution of the radiative transfer equation is presented. The changes in mean intensities are dependent on the geometrical and optical thickness and in particular depend on the ratio T/(B/A), where T is the maximum optical depth and B and A are the outer and inner radii of the spherical shell, respectively. 8 refs.
- OSTI ID:
- 5541141
- Journal Information:
- Astrophysical Journal; (United States), Journal Name: Astrophysical Journal; (United States) Vol. 371; ISSN ASJOA; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ADVECTION
COHERENT SCATTERING
CONTRACTION
COSMIC RADIO SOURCES
ERUPTIVE VARIABLE STARS
EXPANSION
GIANT STARS
MASS TRANSFER
NOVAE
QUASARS
RADIATION TRANSPORT
SCATTERING
STARS
SUPERGIANT STARS
SUPERNOVAE
VARIABLE STARS
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ADVECTION
COHERENT SCATTERING
CONTRACTION
COSMIC RADIO SOURCES
ERUPTIVE VARIABLE STARS
EXPANSION
GIANT STARS
MASS TRANSFER
NOVAE
QUASARS
RADIATION TRANSPORT
SCATTERING
STARS
SUPERGIANT STARS
SUPERNOVAE
VARIABLE STARS