Aberration and advection effects in expanding spherically symmetric shells

Peraiah, A

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dc.contributor.author	Peraiah, A
dc.date.accessioned	2008-07-14T05:54:34Z
dc.date.available	2008-07-14T05:54:34Z
dc.date.issued	1991-04
dc.identifier.citation	Astrophysical Journal, Part 1 , Vol. 371, No.2, pp. 673 - 683	en
dc.identifier.issn	0004-637X
dc.identifier.uri	http://hdl.handle.net/2248/2654
dc.description.abstract	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.	en
dc.format.extent	869750 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	American Astronomical Society	en
dc.relation.uri	http://adsabs.harvard.edu/abs/1991ApJ...371..673P	en
dc.subject	Advection	en
dc.subject	Optical thickness	en
dc.subject	Radiative transfer	en
dc.subject	Stellar envelopes	en
dc.subject	Supernovae	en
dc.subject	Aberration	en
dc.subject	Coherent scattering	en
dc.subject	Computational astrophysics	en
dc.subject	Spherical shells	en
dc.title	Aberration and advection effects in expanding spherically symmetric shells	en
dc.type	Article	en