Rapid brightness and spectrum variations of the nucleus of the Seyfert galaxy NGC 7469

Details Rapid brightness and spectrum variations of the nucleus of the Seyfert galaxy NGC 7469 Rapid brightness and spectrum variations of the nucleus of the Seyfert galaxy NGC 7469

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pazh...16..867c&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 16, Oct. 1990, p. 867-876. In Russian. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

8

Active Galactic Nuclei, Brightness Distribution, Continuous Spectra, Seyfert Galaxies, Spectral Line Width, Ubv Spectra, Astronomical Models, H Lines, Spiral Galaxies

Scientific paper

Observations of nucleus in Seyfert 1 galaxy NGC 7469 during September 1989 - January 1990 have shown that the broad component of the H-beta emission had practically faded from the end of September to the beginning of October 1989. In December it was seen again. Spectral variations were accompanied by a strong decrease of the brightness in U-band and increase of the color index (U - B) up to - 0.04 m, which is close to color of normal spiral galaxies.

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