Soft X-ray observations of the complex warm absorber in MCG-6-30-15 with BeppoSAX
Astrid Orr, S. Molendi, F. Fiore, P. Grandi, A. N. Parmar, Alan Owens
Abstract
We report on soft X-ray observations of the Seyfert 1 galaxy MCG-6-30-15 with the Low and Medium Energy Concentrator Spectrometers on board BeppoSAX. The time averaged 0.1-4 keV spectrum shows evidence for a complex warm absorber. K-edges of highly ionized oxygen (O vii and O viii) can only partly describe the soft X-ray spectrum below 2 keV. A spectral variability study reveales large and rapid changes in absorption at the energy of the O viii K-edge and in the continuum shape and count rate. These fluctuations are not simply correlated.
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