The UV spectrum of the Seyfert 1 galaxy NGC 7469

Details The UV spectrum of the Seyfert 1 galaxy NGC 7469 The UV spectrum of the Seyfert 1 galaxy NGC 7469

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...132..136w&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 132, no. 1, March 1984, p. 136-142. Research supported by the Naturvetenskapli

Astronomy and Astrophysics

Astronomy

19

Galactic Radiation, Lyman Alpha Radiation, Satellite Observation, Seyfert Galaxies, Ultraviolet Spectra, Astronomical Catalogs, Astronomical Spectroscopy, Iue, Spaceborne Astronomy, Spectral Line Width, Ultraviolet Astronomy

Scientific paper

Results from an investigation of thirty-two IUE spectra of the Seyfert 1 galaxy NGC 7469 are presented. During the observation period, from June 1978 to December 1982, the continuum at 1500 Å (observed wavelength) has been found to vary by a factor of about two. The strong emission lines are broad (FWZI 10,000 - 25,000 km s-1) and asymmetric. Ly α shows the strongest intensity variations. A few absorption lines, intrinsic as well as galactic, have been identified in the spectra. NGC 7469 is found to be a strong Fe II emitter in the UV region. Data on variability in NGC 7469 suggest that the extent of the C IV emitting region is of the order of 0.02 pc.

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