Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26as...81..261o&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 81, no. 2, Dec. 1989, p. 261-284.
Astronomy and Astrophysics
Astronomy
18
Astronomical Models, Cosmic Dust, Infrared Astronomy Satellite, Mira Variables, Stellar Envelopes, Stellar Spectra, Aluminum Oxides, Astronomical Catalogs, Infrared Astronomy, Magnesium Compounds, Silicates, Stellar Mass Ejection
Scientific paper
Dust shell models have been fitted to the IRAS LRS spectra of 109 M Mira variables. Best fit models are calculated for each star. A model is completely determined by five parameters: the dust temperatures at the inner boundaries of the aluminum oxide and 'silicate' dust shells, the column densities of each dust grain component, and the distance to the star. It turns out that the 1 - 200 micron IR energy distributions calculated for the best fit parameters also provide quite satisfactory fits to the observed NIR and FIR.
de Jong Teije
Onaka Takashi
Willems Frits J.
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