About
ROSAT
ROSAT Home Page ROSAT
Images

next up previous contents index
Next: Aspect Reconstruction and Attitude Up: Spatial Previous: Spatial

Ghost Images

 

The ROSAT PSPC cannot always properly position X-ray events with very low energy. This results in an extension to the image caused by the detector response to very soft X-ray photons, but one which will not fit any psf model. The effect is very pronounced below channel 15 ( tex2html_wrap_inline18123  keV) but is not evident above channel 20 ( tex2html_wrap_inline18125  keV). For a detailed description see Sect. 7.1.1 and [Nousek and Lesser1993].



If you have problems/suggestions please send mail to rosat_svc@mpe-garching.mpg.de