Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984mnras.211p..33p&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 211, Nov. 1, 1984, p. 33P-39P. Research supported by th
Astronomy and Astrophysics
Astronomy
94
Astronomical Spectroscopy, Galactic Evolution, Seyfert Galaxies, Continuous Spectra, Data Reduction, H Alpha Line, H Gamma Line
Scientific paper
First spectra from the newly sited INT show NGC 4151 and 3C 390.3 to
have taken on a classification very close to Seyfert II. The authors
propose that Seyfert II galaxies are Seyfert Is in which the continuum
source is temporarily off.
Penston Michael V.
Perez Emanuelle
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