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Walter A. Feibelman
© 1996. The Astronomical Society of the Pacific. All rights reserved. Printed in U.S.A.
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Citation Walter A. Feibelman 1996 PASP 108 664
DOI 10.1086/133782
50 Total downloads
The detection of O VIII emission lines in ultraviolet and optical spectra of high-excitation planetary nebula central stars suggests an "O VIII Sequence" for these object. Emission lines of O VII are also detected. Seven out of ten central stars for these planetaries are known to be nonradial g-mode pulsators. The stars form a narrow strip when plotted on the log L*/Lsun - log Teff H-R diagram.
