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arXiv · 1105.5234

X-ray selected Narrow-Line Seyfert 1 Galaxies

A. Caccianiga·P. Severgnini·R. Della Ceca·A. Corral·R. Fanali·E. Marchese
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Abstract

We present and discuss the properties of a complete and well defined sample of X-ray selected type 1 AGNs including 26 Narrow-Line Seyfert 1 and 129 Broad-Line Seyfert 1 galaxies derived from the XMM-Newton Bright Serendipitous Survey (XBS). We study the differences between the two classes of AGNs for what concerns the X-ray properties (the photon-index) and the main physical parameters, like the Black-Hole mass and the Eddington ratio. We then consider the two classes together and look for statistical correlations between observed and physical parameters. We find a significant dependence of the photon-index with the Eddington ratio and a weaker (possibly secondary) correlation between the photon index and the Black-Hole Mass.

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A. Caccianiga, P. Severgnini, R. Della Ceca, A. Corral, R. Fanali, E. Marchese. 2011-05-26. X-ray selected Narrow-Line Seyfert 1 Galaxies. https://arxiv.org/abs/1105.5234

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