Spectrophotometry of the Seyfert galaxy NGC 4151. I - Search for and identification of weak lines

Details Spectrophotometry of the Seyfert galaxy NGC 4151. I - Search for and identification of weak lines Spectrophotometry of the Seyfert galaxy NGC 4151. I - Search for and identification of weak lines

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984afz....21....5l&link_type=abstract

(Astrofizika, vol. 21, July-Aug. 1984, p. 5-19) Astrophysics (ISSN 0571-7132), vol. 20, no. 4, Jan. 1985, p. 355-363. Translatio

Astronomy and Astrophysics

Astrophysics

1

Emission Spectra, Galactic Nuclei, Line Spectra, Seyfert Galaxies, Spectrophotometry, Iron, Signal To Noise Ratios, Spectrograms

Scientific paper

Spectrophotometric results for the nucleus of the Seyfert galaxy NGC 4151 are presented. The broadened spectra are obtained in the range λλ4100 - 7300 Å. The method of the search and identification of faint emission lines is described. 77 lines are identified in the spectra and good accordance is shown with the results of other authors. The authors have discovered many narrow permitted lines of iron Fe II 37, 38, 40, 74, 210. The presence of the line [Fe X] λ6374 is shown distinctly and the assumption about its intensity variability with time scale of 3 - 5 years is suggested.

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