The forbidden NE IV 2D - 4S lines in the planetary nebula NGC 7662

Details The forbidden NE IV 2D - 4S lines in the planetary nebula NGC 7662 The forbidden NE IV 2D - 4S lines in the planetary nebula NGC 7662

Apr 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979mnras.187p...1l&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 187, Apr. 1979, p. 1P-7P.

Astronomy and Astrophysics

Astronomy

10

Fine Structure, Forbidden Bands, Neon, Planetary Nebulae, Spectrum Analysis, Stellar Spectra, Ultraviolet Spectra, Iue, Spectral Resolution, Velocity Distribution

Scientific paper

Results are reported for high-resolution IUE satellite observations of the 2p 3 2D 3/2 - 4S, 2D 5/2 - 4S UV forbidden lines of Ne IV in the spectrum of NGC 7662. Precision measurements of the wavelengths are obtained, along with an improved determination of Ne IV doublet-quartet separations, a measurement of the intensity ratio for the forbidden Ne IV lines, and velocity profiles for the 2D - 4S lines. A nebular expansion velocity of 20 + or - 3 km/s is measured for the 2D 3/2 - 4S forbidden line of Ne IV.

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