An analysis of the spectra of the Seyfert galaxies Markarian 79 and I ZW 1

Details An analysis of the spectra of the Seyfert galaxies Markarian 79 and I ZW 1 An analysis of the spectra of the Seyfert galaxies Markarian 79 and I ZW 1

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...230..360o&link_type=abstract

Astrophysical Journal, Part 1, vol. 230, June 1, 1979, p. 360-372.

Astronomy and Astrophysics

Astrophysics

66

Astronomical Spectroscopy, Galactic Radiation, Seyfert Galaxies, Spectrum Analysis, Emission Spectra, H Lines, Iron, K Lines, Line Spectra, Red Shift, Spectral Line Width

Scientific paper

The spectrum of the Seyfert 1 galaxy Mrk 79 is studied, and the results are compared with a similar study of the Seyfert 1 galaxy I Zw 1. It is found that: (1) both galaxies have broad permitted lines and narrower forbidden lines; (2) the broad lines in Mrk 79 are 3 to 4 times as broad as those in I Zw 1; (3) both galaxies have very strong Fe II lines; (4) the stronger forbidden lines, such as those of O III, O II, and Ne III, are present in both spectra; (5) I Zw 1 is 12 times as luminous as Mrk 79; and (6) the relative continuum spectral energy distributions of the two galaxies are similar, with a modest slope in the visual and red and flat in the violet.

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