The X-ray spectrum of MCG-6-30-15.

EXOSAT and Ginga observations of the type I Seyfert galaxy MCG-6-30-15 have revealed an increasingly complex picture of the X-ray spectrum. The soft excess found in the first EXOSAT observation was confirmed in the spectral analysis of the EXOSAT 'long-look' data, which also yielded evidence for iron features arising from 'cold' material close to the nucleus. The iron features have now been confirmed by the Ginga LAC, whose larger area has been able to detect and quantify short timescale spectral changes. Overall, the X-ray observations provide good evidence for an accretion disc in MCG-6-30-15 which presents a signature both in the soft band (by its thermal emission) and around 7 keV where measurable iron features are produced. There is also evidence for a possible 'warm absorber' around the central source.