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Spectroscopic Observations of Be Stars Especially in the Infrared

Published online by Cambridge University Press:  14 August 2015

L. Houziaux  and
Y. Andrillat
L. Houziaux
Affiliation:
Institut d'Astrophysique, Université de Liège, Avenue de Cointe, 5, B-4200 Liège (Belgium)
Y. Andrillat
Affiliation:
Observatoire de Haute Provence, C.N.R.S., F-04870 St. Michel l'Observatoire, France

Extract

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Since the time of I.A.U. Colloquium n° 70, new data have been obtained in the infrared, far less however than in the ultraviolet or in the visible. Few line spectra have been recorded but numerous results have been published in the field of spectrometry of the continuum. It is however neither easy nor very useful to report on the infrared wavelength range alone, and therefore we shall consider when appropriate other spectral regions in this review. After all, the astrophysicist nowadays has the advantage to seek for information in a spectrum which encompasses a fantastic frequency range of about 10 dex, from ν = 108s−1 up to ν = 1018s−1. This means that a contemporary astronomer will have to become familiar with a somewhat larger span of phenomena than with the rather narrow one he has been accustomed to for the last 40 or 50 years.

Type
IV. Infrared Observations
Information
Symposium - International Astronomical Union , Volume 98: Be Stars , 1982 , pp. 211 - 228
Copyright
Copyright © Reidel 1982 

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