The enrichment of nitrogen and helium in planetary nebulae

Details The enrichment of nitrogen and helium in planetary nebulae The enrichment of nitrogen and helium in planetary nebulae

Feb 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...228..163k&link_type=abstract

Astrophysical Journal, Part 1, vol. 228, Feb. 15, 1979, p. 163-178.

Astronomy and Astrophysics

Astrophysics

65

Abundance, Enrichment, Helium, Interstellar Matter, Nitrogen Ions, Oxygen Ions, Planetary Nebulae, Correlation, Error Analysis, Gas Ionization, Hydrogen, Magellanic Clouds, Stellar Evolution

Scientific paper

The reported investigation is concerned with the determination of the validity of the N/O = N(+)/O(+) relation, the degree of the enrichment of nitrogen, and the correlation between N/O and He/H. The general variation of N/O with position in the galaxy is also studied. For medium excitation planetaries it is found to be generally true that N(+)/O(+) = N/O, at least roughly to within the accuracy of the observations. Based on the medium-excitation planetaries, N/O is clearly correlated with He/H. The correlation becomes stronger when the sample of nebulae is restricted to the disk.

Affiliated with

Also associated with

No associations

Rating

The enrichment of nitrogen and helium in planetary nebulae does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The enrichment of nitrogen and helium in planetary nebulae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The enrichment of nitrogen and helium in planetary nebulae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-829086