Circumstellar environments. III - M-supergiants

Details Circumstellar environments. III - M-supergiants Circumstellar environments. III - M-supergiants

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.235..603s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 235, Dec. 1, 1988, p. 603-620.

Astronomy and Astrophysics

Astronomy

23

M Stars, Stellar Composition, Stellar Envelopes, Supergiant Stars, Carbon Stars, Infrared Spectra, Late Stars, Silicates, Stellar Spectra

Scientific paper

Spectra of M-supergiants in the 7-100-micron region are studied. The circumstellar silicate dust features at 9.7 and 18 microns are found to be of variable width. Although most stars are shown to exhibit the classical circumstellar silicate dust features typified by those of Alpha Ori, some, such as VX SGr, exhibit much broader features. Mass-loss rates are given for 31 M-supergiants.

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