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Context: The unification scheme of Seyfert galaxies hypothesizes that Seyferttype 1s and type 2s are intrinsically similar and the observed differencesbetween the two subtypes are solely due to the differing orientations oftoroidal-shaped obscuring material around the AGN. In the framework of theunification scheme, both the Seyfert subtypes are expected to show similarintrinsic nuclear properties, such as the absorption-corrected AGN X-rayluminosity, bolometric luminosity, accretion rate and the mass of thesupermassive black hole. Aims: To test the predictions of the Seyfertunification scheme, we make statistical comparison of the distributions of: (i)the absorption-corrected 2.0 - 10 keV X-ray luminosities, (ii) the bolometricluminosities, (iii) the black hole masses and, (iv) the Eddington ratios, ofSeyfert type 1s and type 2s. Methods: We use an optically selected Seyfertsample in which type 1s and type 2s are matched in properties that areindependent to the orientation of the obscuring torus, the AGN axis and thehost galaxy. Results: The distributions of the absorption-corrected 2.0 - 10keV X-ray luminosities, the bolometric luminosities, the black masses and, theEddington ratios are statistically similar for the two Seyfert subtypes,consistent with the orientation and obscuration based Seyfert unificationscheme. The Eddington ratio distributions suggest that both the Seyfertsubtypes are accreting at sub-Eddington level with wide span of Eddingtonratios i.e., 10^-4 - 10^-1.

Measuring the level of nuclear activity in Seyfert galaxies and the unification scheme