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A comparison of circumstellar gas and dust in M giants and supergiantsThis paper presents the results of a study of circumstellar gas and dust in a larger sample of stars than that of Hagen (1978). The gas-to-dust ratio varies considerably from star to star. The observations were obtained at Cerro Tololo Interamerican Observatory and Kitt Peak National Observatory. CS gas was observed with 2.5 and 5.1 A/mm echelle spectra obtained with the 4-meter telescopes. CS dust was observed through infrared photometry done with the CTIO 60 and KPNO 50 telescopes.
Document ID
19830012599
Document Type
Conference Paper
Authors
Hagen, W. (Wellesley College Pasadena, CA, United States)
Dickinson, D. F. (Jet Propulsion Lab., California Inst. of Tech. Minneapolis, United States)
Humphreys, R. M. (Minnesota Univ.)
Stencel, R. E. (Joint Inst. of Lab. Astrophysics)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Publication Information
Publication: Smithsonian Astrophysics Observatory 2nd Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, Vol. 1
Subject Category
ASTROPHYSICS
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19830012575Analytic PrimarySecond Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, volume 1