A spectroscopic survey of 51 planetary nebulae
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Abstract
view Abstract Citations (189) References (79) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A Spectroscopic Survey of 51 Planetary Nebulae Aller, L. H. ; Keyes, C. D. Abstract Line intensity data obtained with an image-tube scanner at the 3 m Lick telescope are used to obtain plasma diagnostics and ionic concentrations. With the aid of theoretical models the authors obtain ionization correction factors and find chemical abundances. Abundance patterns of C, N, and O show considerable spread owing to differing nuclear processing rates in progenitor stars. Most objects show enhanced C or N, suggesting that nucleosynthesis products have been mixed with stellar surface layers. Publication: The Astrophysical Journal Supplement Series Pub Date: November 1987 DOI: 10.1086/191230 Bibcode: 1987ApJS...65..405A Keywords: Abundance; Astronomical Spectroscopy; Planetary Nebulae; Astronomical Catalogs; Galactic Nuclei; Interstellar Matter; Plasma Diagnostics; Astronomy; NEBULAE: ABUNDANCES; NEBULAE: PLANETARY full text sources ADS | data products SIMBAD (51)
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