The spectrum of the nebula associated with FG Sagittae

Details The spectrum of the nebula associated with FG Sagittae The spectrum of the nebula associated with FG Sagittae

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...221..851h&link_type=abstract

Astrophysical Journal, Part 1, vol. 221, May 1, 1978, p. 851-853.

Astronomy and Astrophysics

Astrophysics

19

Abundance, Nebulae, Planetary Nebulae, Stellar Spectra, Supergiant Stars, Line Spectra, Luminous Intensity, Stellar Spectrophotometry, Ubv Spectra

Scientific paper

Spectrophotometric observations of the nebulosity associated with FG Sge are presented. The emission-line spectrum appears to be that of a low-ionization planetary nebula. Observations of temperature and density indicators allow chemical abundances to be computed for He, N, O, Ne, and S(+). The derived total abundances are completely normal for planetary nebulae. The lack of observable He(+) emission at 4686 A suggests that the central star must have been relatively cool when the nebula was excited.

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