The UV spectrum of the Seyfert 1 galaxy NGC 7469.

Abstract

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.