NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-21 T18:34:26 PDT
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Notes for object NGC 4220

8 note(s) found in NED.


1. 2006MNRAS.369..529F
Re:NGC 4220
NGC 4220 is an almost edge-on galaxy (i ~85^deg^) that forms a non-interacting
pair with NGC 4218 at 15 arcmin (Giuricin et al. 2000). Our unsharp-masked image
displays a prominent dust lane at a distance of 5 arcsec north-east of the
centre, which is probably part of a more extended dust ring. The presence of the
dust lane is also evident in the [O III]/H{beta} map, where the ratio is very
low at that location. The SAURON reconstructed intensity image reveals a clear
boxy bulge component (Lutticke, Dettmar & Pohlen 2000). The stellar velocity
field exhibits cylindrical rotation. Both the [O III] and H{beta} morphology are
very similar in the central parts, but whereas the [O III] flux steadily
decreases further out from the centre, the H{beta} emission remains strong also
outside the centre, in particular towards east. The ionized-gas velocity fields
are consistent with that of the stars.

2. 2002ApJS..142..223F
Re:NGC 4220
NGC 4220. NVSS reports a 4 mJy source. Wrobel & Heeschen (1991)
establish an upper limit of 0.5 mJy to any emission at 5 GHz, 5"
resolution, while the 4 and 0.2" resolution observations of
Nagar etal. (2000) give an upper limit of 1.4 mJy to any radio
emission at 15 GHz.

3. 2002AJ....124..675C
Re:UGC 07290
Usually high FIR/radio flux ratio.

4. 1994CAG1..B...0000S
Re:NGC 4220
Sa(r)
(I,S,1)
PH-5777-S
April 1/2, 1979
103aO + GG385
10 min
NGC 4220 is seen almost on edge. The print
is of slightly too high a contrast to show well the
two high-surface-brightness arms that, as in
galaxies such as NGC 7702 (panel 62), NGC
4274 (panels 66, 88), NGC 3900 (panel 69),
and NGC 6902 on the preceding page, appear to
form an almost-complete inner ring. But again,
this feature is an overlapping of two tightly
wound spiral arms.
The faint extension of the disk beyond the
two bright inner arms (the fragments of which
show moderately well along the major axis in the
print here) can be seen by viewing the print from
a distance. A subtle spiral pattern, which may be
caused by dust or by smooth luminous arms, can
be seen in this outer, low-surface-brightness
outer disk. The classification S0(r) listed in the
RC2, based on a Mount Wilson 60-inch plate, is
inappropriate. This galaxy has clear Sa-type
spiral arms.

5. 1976RC2...C...0000d
Re:NGC 4220
Non-interacting pair with NGC 4218 at 15 arcmin

6. 1973UGC...C...0000N
Re:UGC 07290
SA(r)0+ (de Vaucouleurs)

7. 1964RC1...C...0000d
Re:NGC 4220
Small, bright nucleus. (r): 0.95 arcmin x 0.25 arcmin. Poorly resolved.
Non-interacting pair with NGC 4218 at 15 arcmin.
Lund 9 dimensions are for the bright part only.
Yerkes 2 classification is : or DG

8. 1918PLicO..13....9C
Re:NGC 4220
A fairly bright spiral 2.5' x 0.4' in p.a. 135^deg^. Bright, almost stellar
nucleus. Absorption Effect along the n.e. side. See Abs. Eff.


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