NGC 4429. This source was not detected in the NVSS. Wrobel & Heeschen
(1991) establish an upper limit of 0.5 mJy at 5 GHz, 5" resolution,
while the Nagar et al. (2000), 0.2" resolution observations give an
upper limit of 1.1 mJy for any small-scale radio emission at 15 GHz.
Jan 30/31, 1979
103aO + Wr2
The intensity asymmetry in the disk of NGC
4425 above and NGC 4143 on the preceding
panel is well developed and is identified as the
early stage of smooth arms in Sa types. The
classification of NGC 4429 here differs from that
in the RSA2 by the removal of the pec suffix. In
so doing we now assume that the embryonic arms
are normal and are the earliest stage of arm
"development" seen as a progressive sequence in
the next several panels of the Sa section. (These
features in the outer disk were taken to be an
outer ring in the RC2, where the class is listed as
The dust ring in the bulge is typical of S0_3_
types. The galaxy is classed as a mixed type,
between S0 and Sa, on the basis of both the dust
pattern and the massive embryonic arms.
SA(r)0+ (de Vaucouleurs), S0 (Holmberg)
Very bright nucleus: 0.6 arcmin x 0.4 arcmin with a strong dark crescent.
Smooth (r) or (R): 2.7 arcmin x 0.8 arcmin. Very faint envelope.
See also M.N.R.A.S., 94, 806, 1934.
A fairly bright spiral 3' x 1' in p.a. 80^deg^; bright, rather large nucleus; a
very clearly marked absorption lane on the northern side. See Abs. Eff. 34 s.n.