Astronomy and Astrophysics Letters dedicated to ISO

ISO observations of hot dust in the nucleus of the S0 galaxy NGC 3998

G.R. Knapp - M.P. Rupen - M. Fich - D.A. Harper - C.G. Wynn-Williams


ISOCAM maps of the Seyfert 1 S0 galaxy NGC 3998 between 4.5mum and 15mum detect both extended emission from the bulge stars and strong point source emission from the nucleus. The inner regions of NGC 3998 appear to contain a few thousand solar masses of warm ( ~ 200 K) dust, probably associated with the AGN.

galaxies: elliptical and lenticular, cD - galaxies: individual: NGC 3998 - galaxies: ISM - galaxies: Seyfert

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