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Observations of Central Stars

Published online by Cambridge University Press:  22 September 2016

Julie H. Lutz
Julie H. Lutz*
Affiliation:
Department of Physics and Astronomy, University College London

Extract

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Central stars of planetary nebulae have long presented a difficult problem for observers because most of them are fainter than tenth magnitude and because emission lines from the nebulosity interfere with spectroscopy of stellar features. With the advent of numerous large telescopes and space telescopes it is possible to obtain detailed observations of many central stars. More observing time devoted to central stars has resulted in accurate observations of emission and absorption features in their optical spectra and in the discovery of binary systems among them. Satellites have made possible observations in the ultraviolet. As usual, recent studies have raised as many questions as they have answered. This review will concentrate on a few topics of current interest. The reader should consult Aller (1976) for a comprehensive review on central stars and for an excellent summary of magnitudes and spectral classifications of individual central stars.

Type
Session IV: The Central Stars of Planetary Nebulae
Information
Symposium - International Astronomical Union , Volume 76: Planetary Nebulae , 1978 , pp. 185 - 193
Copyright
Copyright © Reidel 1978 

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