Abstract
view Abstract Citations (42) References (28) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Axisymmetric Models of Circumstellar Dust Shells Collison, Alan J. ; Fix, John D. Abstract Luminosity constant models of axisymmetric circumstellar dust shells are calculated. The models consist of either 'donut-like' or 'disklike' distributions of silicate grains surrounding a 3000 K star. An iterative scheme is used to solve the radiative transfer problem taking into account both scattered and thermal radiation. Maps for models with varying degrees of asymmetry and optical thickness of the shell and for various inclinations of the line of sight to the axis of symmetry are presented. One-dimensional visibility amplitudes and angular sizes are computed for scans of the maps in two perpendicular directions. It is shown that one-dimensional visibility measurements at 10 and 20 microns may be used to distinguish between the two types of dust density distributions considered here. Publication: The Astrophysical Journal Pub Date: February 1991 DOI: 10.1086/169718 Bibcode: 1991ApJ...368..545C Keywords: Interstellar Matter; Stellar Envelopes; Stellar Models; Cosmic Dust; Density Distribution; Optical Thickness; Radiative Transfer; Thermal Emission; Astrophysics; INFRARED: SPECTRA; RADIATIVE TRANSFER; STARS: CIRCUMSTELLAR SHELLS full text sources ADS | data products SIMBAD (1)
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