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The flux ratio of the [OIII] 5007,4959 lines in AGN: Comparison with theoretical calculations

M. S. Dimitrijevic·L. C. Popovic·J. Kovacevic·M. Dacic·D. Ilic
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Abstract

By taking into account relativistic corrections to the magnetic dipole operator, the theoretical [OIII] 5006.843/4958.511 line intensity ratio of 2.98 is obtained. In order to check this new value using AGN spectra we present the measurements of the flux ratio of the [OIII] 4959,5007 emission lines for a sample of 62 AGN, obtained from the Sloan Digital Sky Survey (SDSS) Database and from published observations. We select only high signal-to-noise ratio spectra for which the line shapes of the [OIII] 4959,5007 lines are the same. We obtained an averaged flux ratio of 2.993 +/- 0.014, which is in a good agreement with the theoretical one.

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M. S. Dimitrijevic, L. C. Popovic, J. Kovacevic, M. Dacic, D. Ilic. 2006-10-27. The flux ratio of the [OIII] 5007,4959 lines in AGN: Comparison with theoretical calculations. https://doi.org/10.1111/j.1365-2966.2006.11238.x

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