Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.261..170c&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 261, no. 1, p. 170-174.
Astronomy and Astrophysics
Astronomy
10
Astronomical Photometry, Forbidden Transitions, Galactic Nuclei, Seyfert Galaxies, Spectrophotometry, Visual Photometry, Cosmic Dust, Emission Spectra, Infrared Spectra, Interstellar Extinction, Luminosity, Spiral Galaxies, Star Formation
Scientific paper
Spectrophotomety in the 4300-5300 A range and direct imaging in B, V, and I of the Montreal Blue Galaxy (MBG) 02223-1922, a new, bright (V=13.5), Seyfert 1 galaxy are presented. Data obtained reveal unusually broad and composite forbidden lines, which suggests a more complex dynamical structure of the narrow-line region than is usually proposed for Seyfert galaxies. The galaxy is characterized by the moderately large infrared luminosity, L(IR)=6.6 x 10 exp 10 L solar masses, relatively flat FIR spectrum (indices alpha(12,25)=-0.98 and alpha(12, 60)=-1.33), the average value of the flux ratio, and internal reddening, E(B-V)=0.38. These parameters suggest that only a small quantity of dust is present in the nucleus. It is concluded that MBG 02223-1922 is probably a so-called Seyfert galaxy 1.8.
Coziol Roger
Demers Serge
Pena Miriam
Torres-Peimbert Silvia
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