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High-Resolution 3 μm Spectroscopy of Extreme Carbon Stars

Published online by Cambridge University Press:  04 August 2017

J.-P. Maillard ,
S.C. Foster ,
T. Amano  and
P.A. Feldman
J.-P. Maillard
Affiliation:
Département de physique, Université de Montréal, Montréal, Qué. H3C 3J7, Canada; Current Address: Institut d'astrophysique, 98 Bis Blvd Arago, 75614 Paris, France
S.C. Foster
Affiliation:
Herzberg Institute of Astrophysics, NRC of Canada, Ottawa, Canada K1A 0R6; Current Address: Chemistry Dept., Ohio State Univ., Columbus, Ohio
T. Amano
Affiliation:
Herzberg Institute of Astrophysics, NRC of Canada, Ottawa, Canada K1A 0R6
P.A. Feldman
Affiliation:
Herzberg Institute of Astrophysics, NRC of Canada, Ottawa, Canada K1A 0R6

Abstract

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We have used the Cassegrain-focus Fourier Transform Spectrometer of the Canada-France-Hawaii Telescope to record high-resolution (0.03 cm−1), high signal-to-noise ratio spectra of the extreme carbon stars IRC+10°216 and CIT6 in the 2850–3100 cm−1 region. Upper limits were obtained for the column densities of silicon nitride (2-0 band of the A-X system), ethylene (ν11 fundamental band at ν0 = 2988.7 cm−1), and ethane (ν7 fundamental band at ν0 = 2985.4 cm−1).

Type
Stellar Atmospheres
Information
Symposium - International Astronomical Union , Volume 120: Astrochemistry , 1987 , pp. 387 - 390
Copyright
Copyright © Reidel 1987 

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