The Fe X forbidden line profile and its variability in the nucleus of the Seyfert galaxy NGC 4151

Details The Fe X forbidden line profile and its variability in the nucleus of the Seyfert galaxy NGC 4151 The Fe X forbidden line profile and its variability in the nucleus of the Seyfert galaxy NGC 4151

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pazh...16..884s&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 16, Oct. 1990, p. 884-892. In Russian. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

Galactic Nuclei, Metallicity, Seyfert Galaxies, Spectral Line Width, Annual Variations, Charge Coupled Devices, Emission Spectra, Iron

Scientific paper

Using CCD spectra of the nucleus of the Seyfert galaxy NGC 4151 obtained in 1988 and 1989, the ratios of line intensities, widths, and wavelengths in the blends forbidden O I 6300, forbidden S III 6312 and forbidden O I 6364, forbidden Fe X 6374 are determined. The separation of blends was made by minimization of the root mean square error. The O III 5007 forbidden line profile was taken as an approximation function. The standard deviation of one measurement of the Fe X forbidden line intensity is 11 percent and cannot serve as evidence for the variability of this line.

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