>DUST IN QUASARS
>===============
>
>P.D. Barthel
>Kapteyn Astron.Inst.
>Groningen, NETHERLANDS
>
>
>The far-infrared emission of radio-loud as well as radio-quiet active
>galaxies and quasars is a composite of thermal emission by cold ISM dust
>in the host galaxy, cool dust associated with (circumnuclear and disk)
>star formation, and warm circumnuclear dust reradiating the hard
>continuum of the active nucleus.  In addition there is a component of
>relativistically beamed nonthermal radiation, originating in the base of
>the jets emanating from the galactic nucleus.
>
>All components have their own specific signatures and can be isolated by
>combining radiometric and spectrographic measurements in the radio -
>submm - FIR - optical wavelength regions. Such measurements and the
>implications of the results for our understanding of the multi-component
>nature of the dust in quasars will be discussed. Emphasis will be given
>to AGN unification and star formation in the host galaxies.
>