Title: Soft X‐Ray Properties of Seyfert Galaxies in the ROSAT All‐Sky Survey
Abstract: We present the results of ROSAT All-Sky Survey observations of Seyfert and IR luminous galaxies from the extended 12 μm galaxy sample and the optically selected CfA sample. Detections are available for 80% (44/55) of the Seyfert 1's and 34% (23/67) of the Seyfert 2's in the 12 μm sample, and for 76% (26/34) of the Seyfert 1's and 38% (6/16) of the Seyfert 2's in the CfA Sample. Roughly half of the Seyfert galaxies (mostly Seyfert 1's) have been fitted to an absorbed power-law model, yielding an average photon index of Γ = 2.26 ± 0.11 for 43 Seyfert 1's and Γ = 2.45 ± 0.18 for 10 Seyfert 2's, with both types having a median value of 2.3.