The spectrum of the planetary nebula NGC 6567

Details The spectrum of the planetary nebula NGC 6567 The spectrum of the planetary nebula NGC 6567

Nov 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pasp..105.1279h&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 105, no. 693, p. 1279-1286

Astronomy and Astrophysics

Astronomy

21

Abundance, Chemical Composition, Metallicity, Planetary Nebulae, Ultraviolet Astronomy, Ultraviolet Spectra, Astronomical Models, Astronomical Spectroscopy, Data Reduction, Electron Density (Concentration), Electron Energy, Iue, Spectrum Analysis

Scientific paper

Because of the similarity of its spectrum to that of NGC 6572 particularly in the UV we have made a detailed study of NGC 6567 using both the IUE for the UV region and the Hamilton Echelle at Lick Observatory for the optical region. Plasma diagnostics suggest an electron temperature of about 11,500 K an electron density near 9000/cu cm. The chemical composition of this Population Type II high-velocity planetary nebula is found from ionic concentrations and a theoretical model. The 'metal'/H ratio is lower than in the sun, except for C whose abundance is enhanced to about 30% over the solar value and for He which may be slightly enhanced. There is no evidence of any spectral variability.

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