Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978aj.....83.1437j&link_type=abstract
Astronomical Journal, vol. 83, Nov. 1978, p. 1437-1439.
Astronomy and Astrophysics
Astronomy
46
Astronomical Spectroscopy, Carbon Stars, Infrared Astronomy, Stellar Spectrophotometry, Absorption Spectra, Cosmic Dust, Silicon Carbides, Stellar Envelopes, Stellar Mass Ejection
Scientific paper
Low-resolution spectra from 2 to 4 and from 8 to 13 microns are presented. The spectra show a continuum approximating a 325-K blackbody, the 3.1-micron carbon-star absorption feature, and probably silicon carbide in absorption near 11 microns. The steepness of the 2-13-micron spectra and the silicon carbide absorption imply that the dust shell around GL 3068 is extremely thick and suggest a mass loss rate greater than 30 millionths of a solar mass per yr.
Jones Barbara
Merrill Michael K.
Puetter Richard C.
Willner Steve P.
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