Near - Infrared Line and Radio Continuum Imaging of theCircinus

We have imaged the Circinus Galaxy in the near-infrared Fe ii] 1.64m and H 2 2.12m lines, and derived velocity maps for the emission. The morphologies are strikingly different , but the velocity maps are very similar and consistent with simple rotation. We also present new radio continuum maps at 3 cm and 6cm which show a partially resolved nucleus with a at spectral index. This suggests free-free absorption rather than self absorption in a compact source. There is some evidence of radio jets close to the nucleus. The H 2 emission, rather than the Feii] as in NGC1068, is extended along the jet axis and may be excited by jet induced shocks either in a low density medium or with rather slow shock speeds (v < 50kms ?1). We nd that the star-formation in the ring 10arcsec from the nucleus began less than a few 10 7 years ago. Nearer the AGN, perhaps in and around the inferred torus, we detect extended Feii] emission (including one prominent peak about 2 arcsec North of the AGN which could be due to a single young remnant) from which we derive a modest star-formation rate of < 1 M yr ?1 .