Variations in the 8-13-micron visibility functions of shells around oxygen-rich stars

Details Variations in the 8-13-micron visibility functions of shells around oxygen-rich stars Variations in the 8-13-micron visibility functions of shells around oxygen-rich stars

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....104..377d&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 104, no. 1, July 1992, p. 377-385.

Other

12

Interstellar Matter, Optical Thickness, Speckle Interferometry, Stellar Envelopes, Stellar Spectra, Supergiant Stars, Variable Stars, Brightness Distribution, Radiative Transfer, Stellar Luminosity

Scientific paper

New 8-13-micron speckle interferometry of seven oxygen-rich stars with circumstellar dust shells is presented. Six of the shells are partially resolved with only the shell around Alpha Ori being fully resolved. A simple shell model is developed and the wavelength dependence of the optical depth for the dust around Alpha Ori is derived. The similarity of this dependence to other determinations is discussed.

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