UGC 4273. The determination of the morphological position angle is biased by the
bar and spiral arms.
NGC 2543 is a barred Sb galaxy (all Hubble types from the HyperLeda database,
just as for the active galaxies in our companion paper). It appears somewhat
asymmetric in the optical, although not obviously disturbed. A relatively dim
galaxy at a comparable optical redshift, PGC 80408, lies ~3.4^'^ (~36 kpc) south
of NGC 2543. Our H I image at a spatial resolution of ~20 kpc (Fig. 3) reveals
that NGC 2543 shares a common envelope with PGC 80408. An examination of the
channel maps at this spatial resolution (Fig. 4) reveals tentative evidence for
a tidal bridge (which, if real, is at best marginally spatially resolved)
connecting the two galaxies. Our H I image at a spatial resolution of ~10 kpc
(also shown in Fig. 3) clearly reveals that the connection between the two
galaxies is indeed a tidal bridge. In addition, the H I disk of NGC 2543 is
clearly disturbed on its southwestern side, which on this side extends much
further than on the northeastern side and curls in a direction toward its
interacting neighbor PGC 80408.
= IC 2232
= Kara 157.
SB(r)b (de Vaucouleurs)
Companion 3.4, 178, 0.35 x 0.15
= IC 2232
Very small, very bright nucleus, broad bar with dark material: 0.5 arcmin x
0.25 arcmin. Pseudo (r): 1.0 arcmin x 0.6 arcmin. Faint, regular arms.