Radiative transfer in axisymmetric circumstellar dust shells.

Details Radiative transfer in axisymmetric circumstellar dust shells. Radiative transfer in axisymmetric circumstellar dust shells.

Apr 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...296..752l&link_type=abstract

Astronomy and Astrophysics, v.296, p.752

Astronomy and Astrophysics

Astrophysics

41

Radiative Transfer, Stars: Agb, Post Agb, Stars: Carbon, Stars: Circumstellar Matter, Stars: Individual: Red Rectangle = Hd 44179, Dust

Scientific paper

A non-spherical dust shell radiative simulation, aiming both at analysing the existing data on evolved stars and at preparing the interpretation of the scheduled high angular resolution imaging, is described. The calculated radiative equilibrium derives from a Monte Carlo method. The exact solution of the transfer is thus computed for different wavelengths. Results are obtained for different modellings with peculiar axisymmetric dust density distributions. The broad band spectra, the brigthness distribution of the shell as a fonction of wavelength and view angle and the corresponding visibility maps, display typical observable properties. In a first attempt the spectrum and the visible image of the Red Rectangle are reproduced with a flared disc.

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