Planetary nebulae and the interstellar medium

Details Planetary nebulae and the interstellar medium Planetary nebulae and the interstellar medium

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986inpr.conf...61a&link_type=abstract

In NASA. Ames Research Center Summer School on Interstellar Processes: Abstracts of Contributed Papers p 61-62 (SEE N87-15043 0

Computer Science

Abundance, Chemical Composition, Electron Energy, Interstellar Matter, Planetary Nebulae, Argon, Carbon, Chlorides, Neon, Nitrogen, Oxygen, Sulfur, Tables (Data)

Scientific paper

In addition to available published data on planetary nebulae (PN), some 40 objects largely concentrated towards the galactic center and anticenter regions were included. All were observed with the Lick 3m telescope and image tube scanner. Abundances of C, N, O, Ne, Cl, and Ar were determined by a procedure in which theoretical models were used to obtain ionization correction factors (ICF). Of the 106 PN, 66 are N-rich and 40 are N-poor. There appear to be no significant differences between the average compositions in the solar neighborhood and the average taken over the entire observable portion of the galaxy.

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