C. S. Reynolds 
, M. J. Ward 
, A. C. Fabian 
and A. Celotti 
JILA, University of Colorado, Boulder, Colorado, CO 80309-0440,
USA
Institute of Astronomy, Madingley Road, Cambridge, CB3 0HA
X-ray Astronomy Group, Department of Physics and Astronomy,
University of Leicester, Leicester, LE1 7RH
S.I.S.S.A., via Beirut 2-4, 34014 Trieste, Italy
We present a multiwaveband spectroscopic study of the nearby Seyfert 1
galaxy MCG-6-30-15. New optical spectra from the
Anglo-Australian Telescope are presented which clearly show the effects of
dust extinction/reddening on both the emission line spectrum and the
non-stellar AGN continuum. The reddening is constrained to be in the range
E(B-V)=0.61-1.09. Spectroscopy in the X-ray band, with both ROSAT
and ASCA, reveal absorption by the warm absorber but little or no
neutral absorption expected to accompany the dust responsible for the
optical reddening. The dusty warm absorber solution to this discrepancy is
discussed and photoionization models of such warm absorbers are
constructed. The optical spectrum also displays the relatively strong
`coronal' lines of [FeX] 
, [FeXI] 
and
[FeXIV] 
. We show that these lines may plausibly originate
from the outer regions of the warm absorber, although better calculations
of the collision strengths for these transitions are required in order to
conclusively address this issue. We also present new ultraviolet data
from the International Ultraviolet Explorer and suggest that much of the
observed UV flux is scattered into our line of sight (with a scattering
fraction of 1-5 per cent). We conclude with a discussion of the global
energetics of this system.
