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Infrared (1.4–4.1μM) Spectra of Wolf-Rayet Stars

Published online by Cambridge University Press:  14 August 2015

P. M. Williams
P. M. Williams*
Affiliation:
United Kingdom Infrared Telescope Unit of the Royal Observatory Edinburgh 900 Leilani Street Hilo, Hawaii 96720

Abstract

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The spectra of a variety of Wolf-Rayet stars have been observed with ∼1% spectral resolution in the 1.4–4.1μm region using UKIRT. Strong lines due to ions of helium and carbon are observed and their relative strengths discussed. The He I singlet at 2.058μm is anomalously strong relative to other He I lines in WC stars and is responsible for the difference in the (H-K) colours of WN and WC stars. Emission line corrections to H, K and L magnitudes of different types are discussed. The Sanduleak 0 VI star ST 3 shows very strong C IV lines like the WC5 stars but not the strong He I.

Type
SESSION 1 — THE WOLF-RAYET PHENOMENON
Information
Symposium - International Astronomical Union , Volume 99: Wolf-Rayet Stars: Observations, Physics, Evolution , 1982 , pp. 73 - 78
Copyright
Copyright © Reidel 1982 

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