Detailed Modelling of the Shell around S-Scuti

Details Detailed Modelling of the Shell around S-Scuti Detailed Modelling of the Shell around S-Scuti

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...271..508e&link_type=abstract

Astronomy and Astrophysics, Vol.271, NO. 2/APR, P. 508, 1993

Astronomy and Astrophysics

Astrophysics

4

Carbon Stars, Non-Lte Calculations, S Scuti, Circumstellar Shell

Scientific paper

We have calculated a large number of models of the circumstellar material around the carbon star S Sct and compared the results with detailed maps in the CO J=1-O and J=2-1 lines. The radiative transfer calculations were performed in non-LTE using a nine-level CO model atom and using the geometrical assumption of spherical symmetry. The best fit to the main part of the emission was obtained for a thin shell far from the star.

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