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New observations of the CIV and N V resonance doublets in the planetary nebula NGC 3918.

Pena, M.; Torres-Peimbert, S.

We present new short wavelength high dispersion lUE measurements of the resonance doublets 1238/1243 of N V and 1548/1551 of C IV. The observed intensity ratios are of 1.87±0.15 for N V and 1.83±0.11 for C IV; compatible, within the observational uncertainties with the expected ratio of 2.