Other
Scientific paper
Mar 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...228l..59o&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 228, Mar. 1, 1979, p. L59-L62.
Other
3
Absorption Spectra, Emission Spectra, Radio Galaxies, Seyfert Galaxies, H Alpha Line, H Beta Line, Spectral Line Width, Variable Stars
Scientific paper
Optical spectra are described of four N galaxies that are not radio sources, but that were originally discovered as variable 'stars.' Two of them have absorption-line spectra; the other two have emission-line spectra that are similar to the emission-line spectra of broad-line radio galaxies. Neither of the emission-line N galaxies shows detectable Fe II emission, a feature that is common in typical Seyfert 1 galaxies but is absent from the spectra of most broad-line radio galaxies.
Grandi Steven A.
Osterbrock Donald E.
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