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NGC 660 is a rather peculiar galaxy for which two kinematical systems exist: a nearly edge-on disk ( $PA = 46^{\circ}, i \approx 80^{\circ}$) and an inclined polar ring or strongly warped outer disk ( $PA = -7^{\circ},
i \la 60^{\circ}$) (Gottesman & Mahon 1990; Baan, Rhoads & Haschick 1992; Combes et al. 1992). The 6-cm continuum map by Condon et al. (1982) shows quite extended emission along the inner disk with two peaks roughly 4 apart. HI position-velocity diagrams obtained by Gottesman & Mahon along the major axes of both systems show a broad absorption line the varying column density of which resembles the (here unresolved) continuum structure. This and the map of the integrated mean velocity dispersion shown by the authors hints at a fast-rotating nuclear ring at $PA = 46^{\circ}$, thus belonging to the disk. Further, there are indications for a stellar bar (Young, Kleinmann & Allen 1988) and very tentatively for nuclear outflow (Gottesman & Mahon 1990). Baan, Rhoads & Haschick (1992) obtained both high-resolution HI and OH absorption measurements with the VLA. They found that a central disk (diameter $\sim$ 6 or 300 pc) with a large velocity gradient (see Table 1) dominates the absorption signature. The companion UGC 01195, an irregular, distorted galaxy is located 22 or 72 kpc away.

Next: NGC 1068 Up: The Group of Nearby Previous: NGC 253
Baerbel Koribalski