Answers are grounded in this paper and cite their sources.
We present optical and IUE observations of the Hourglass Nebula which is embedded in the galactic H II region M8. By comparing the intensities of the [C III] lines λλ1907 + 1909 with that of C II λ4267, a value of t2 = 0.046±0.01 is obtained. The logarithmic abundances by number of the gaseous component for t2 = 0.046 are: H = 12.00, He = 11.00 C = 8.55, N = 7.80, 0 = 8.74, Ne = 7.99, S = 7.38, Ar = 6.76, and Fe = 6.16. These abundances are compared with those of other galactic H II regions, the Sun, and B stars of the solar neighborhood.
No takes yet. Share an insight, caveat, or question.
Peimbert et al. (1993) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: