Spectroscopy of six Wolf-Rayet stars - The latest and faintest

Astronomy and Astrophysics – Astronomy

Scientific paper

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Late Stars, Stellar Spectrophotometry, Wolf-Rayet Stars, Faint Object Camera, Interstellar Extinction, Line Spectra, Spectrum Analysis, Stellar Magnitude, Stellar Spectra

Scientific paper

In the case of a few of the Wolf-Rayet stars cataloged by van der Hucht et al. (1981), certain information concerning spectral subtypes and photometry is missing. These stars are primarily the faintest and most heavily reddened of the known galactic WR stars. The stars investigated in connection with the present investigation include WR 105, WR 112, WR 118, WR 122, WR 126, and WR 149. The data were obtained with a 4-m telescope and an intensified image dissector scanner during four nights in September 1982. One of these objects, the WR 118 appears to be the lowest excitation WC star ever observed, while WR 122 is the lowest excitation WN star yet seen.

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