An O VIII Sequence for Planetary Nebula Nuclei

Details An O VIII Sequence for Planetary Nebula Nuclei An O VIII Sequence for Planetary Nebula Nuclei

Aug 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996pasp..108..664f&link_type=abstract

Publications of the Astronomical Society of the Pacific, v.108, p.664

Astronomy and Astrophysics

Astronomy

13

Planetary Nebulae: General, Ultraviolet: Interstellar

Scientific paper

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*/L_sun - log Teff H-R diagram. (SECTION: Stars)

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