The circumstellar dust of MU Cephei

Details The circumstellar dust of MU Cephei The circumstellar dust of MU Cephei

Sep 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...272..175r&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 272, Sept. 1, 1983, p. 175-181. Research supported by the Natural Sciences

Other

26

Infrared Stars, Interstellar Extinction, M Stars, Semiregular Variable Stars, Stellar Envelopes, Stellar Spectra, Ultraviolet Absorption, Basalt, Cosmic Dust, Optical Thickness, Particle Size Distribution, Radiative Transfer, Supergiant Stars

Scientific paper

An accurate solution to the equation of transfer in spherical geometry (including an anisotropic phase function) is used to model IUE observations of the circumstellar extinction of Mu Cep. Some grain materials can thus be eliminated from consideration while others can be restricted in grain size (and envelope optical depth). Further discrimination of candidate grain models is achieved through analysis of the thermal infrared emission. It is found that circumstellar dust similar to basaltic glass with enhanced near-infrared absorptivity would satisfy observations in both wavelength regimes.

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