NGC 4779 (UGC 8022)
A mosaic of images was obtained for this galaxy, so our data really
encompasses the entire object.
The K' image shows a strong bar, and weak flocculent and asymmetric
spiral structure (Fig. 26a), as confirmed by the sharp-divided image
(Fig. 26b). The bar and beginning of the spiral arms appear more clearly
on the difference image (Fig. 26c). Chapelon et al. (1999) find a bar
with PA = 5^deg^ and ~16 arcsec. The bar that we measure is somewhat
longer (Fig. 26e), in agreement with Friedli et al.'s (1996) result that
bars are generally longer in K than in R (see also NGC 3660).
The J/K' colour image is fairly smooth (Fig. 26d). The bulge + disk
fits clearly show the bar and spiral arm regions (Figs. 26f and 26g).
Photometry and Isodensitometry:
Ap. J. Suppl., 26, No. 230, 1973.