Cambridge-Cambridge X-ray Serendipity Survey. 2: Classification of X-ray LuminousGalaxies

摘要

We present the results of an intermediate-resolution (1.5 A) spectroscopic studyof 17 x-ray luminous narrow emission-line galaxies previously identified in the Cambridge-Cambridge ROSAT Serendipity Survey and the Einstein Extended Medium Sensitivity Survey. Emission-line ratios reveal that the sample is composed of ten Seyfert and seven starburst galaxies. Measured linewidths for the narrow H