Spectral comparison between AGN at z = 0.1, 0.2 and 0.3
Presented by Prof. Hartmut WINKLER on 8 Jul 2014 from 17:10 to 19:00
Type: Poster Presentation
Track: Track D1 - Astrophysics
Board #: D1.1
We identified three samples of ROSAT sources with Sloan Digital Sky Survey spectra, one at redshift z = 0.1, a second one at z = 0.2 and a third one at z = 0.3. 822 sources in total were examined. We determined the nature and spectral sub-types of the sources by visual inspection. The fraction of each sub-type at each of the three redshifts are then calculated. We consider selection biases caused by the luminosity cut-off threshold to determine whether any systematic trends in AGN type are evident with increasing redshift. We hence probe if an evolution effect is detected in our sample.