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Date and Time of the Query: 2019-06-18 T18:02:57 PDT
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Notes for object NGC 4647

11 note(s) found in NED.


1. 2002ApJS..143...73E
Re:NGC 4647
NGC 4647.---SBbc: Small, very flat bulge embedded in a
bar with the bar P.A. nearly orthogonal to the bulge P.A.
Symmetric two-armed spiral pattern emerges from the ends
of the bar. Arms can be traced through a full winding before
fading. Outer arms are very fluffy. May be effected by
nearby giant elliptical.

2. 2002AJ....124..675C
Re:UGC 07896
Cometary radio morphology; near UGC 07898.

3. 2000ApJ...542..761W
Re:NGC 4647
NGC 4647/9 is a bright, well-known pair in the Virgo Cluster (see the
B band image in Fig. 11). NGC 4647 (UGC 7896) is a spiral with flocculent
structure and heavy dust lanes, especially prominent at the edge of the
optical disk (see, e.g., the photograph in Arp 1966, where this pair is
number 116). They are projected at the large center-to-center separation
of 11.9 kpc (for a distance of 16 Mpc) even compared to the large scale
of the elliptical NGC 4649 (=M60=UGC 7898), so this pair offers a chance
to examine primarily any dust structure that might lie beyond the bright
optical disk (since the entire spiral is projected against detectable
light from NGC 4649). The elliptical was modeled in two stages, using
the STSDAS ellipse task for the inner parts of the galaxy and the
best-fit global r^1/4^ model beyond r = 106", to avoid the spiral's
influence on fitted isophotes. The outer regions are fitted by a
somewhat shallower profile (R_e_ = 82") than the global value of 68"
listed in the RC3 (de Vaucouleurs et al. 1991). After subtraction of
this model for the elliptical component NGC 4649, no absorption
structure is found beyond the edges of the disk of NGC 4647, with the
outermost detected absorption associated with the prominent dust lane on
the northern side of the disk. If the spiral is in fact in front, no
dust features large enough to resolve have A_B_ or A_I_ > 0.11 (dividing
by a face-on correction factor of a/b = 1.4). The range sampled here is
at and outside R_25_.

4. 1994CAG1..B...0000S
Re:NGC 4647
[Pair with NGC 4649]
VCC 1972
Sc(rs)III
H-11-H
Jan 26/27, 1920
Seed 30
75 min
The two galaxies here form a close optical
pair with an angular separation of 2.5' in the
Virgo Cluster region but south and far to the east
of the core of subcluster A. The redshifts are
similar at v_o(4647) = 1331 km/s and v_o(4649)
= 1142 km/s. The lack of evidence of tidal
interaction, either as tidal plumes in the S0
component or as a distortion of the spiral structure
of NGC 4647, suggests that the galaxies are at
different distances. At the common distance
scaled to 22 Mpc for the Virgo Cluster, their
projected linear separation would be small at 16
kpc; some sign of an encounter would be
expected.
NGC 4649 is Messier 60. It has a prominent
extended envelope characteristic of S0_1_
morphology. The E2 classification in the RC2, based
on a Palomar 200-inch plate, is inappropriate.

5. 1994CAG1..B...0000S
Re:NGC 4647
VCC 1972
Pair [with NGC 4649]
Sc(rs)III
CD-802-S
Feb 24/25, 1979
103aO + Wr2c
45 min
NGC 4647 with v_o = 1331 km/s forms a
close (physical?) pair with NGC 4649 (M60;
S0_1_; panel 51; v_o = 1142 km/s). The pair is
shown in panel 10 of the Virgo Cluster
photographic atlas of spirals (Sandage, Binggeli,
and Tammann 1985a). The angular separation
of the pair is 2.8', which corresponds to a small
projected linear separation of 18 kpc at a
distance of 21.8 Mpc if the galaxies are physically
associated.
Numerous HII-region candidates exist in
some of the arm fragments. The largest resolve
into disks at about the 1.5" level.

6. 1976RC2...C...0000d
Re:NGC 4647
= Holm 448b
= Kara[72] 353a
In Arp 116 = VV 206
Non-interacting pair with NGC 4649 at 2.5 arcmin
Photometry and Isodensitometry:
Ap. J. Suppl., 26, No. 230, 1973.
Spectrophotometry:
Observatory, 88, 239, 1968.
Radio Observations:
M.N.R.A.S., 167, 251, 1974 (with NGC 4649).

7. 1973UGC...C...0000N
Re:UGC 07896
VV 206b, Arp 116a
SAB(rs)c (de Vaucouleurs), Sc- (Holmberg)
Paired with UGC 07898 at 2.6, 136, contact
See UGC 07898

8. 1964RC1...C...0000d
Re:NGC 4647
= Holm 448b
Very small, bright nucleus in a short bar-like structure. Pseudo (r):
0.5 arcmin x 0.3 arcmin. Very many knotty arms. Outer dark lane on one side.
Uppsala 21 dimensions (0.7 arcmin x 0.2 arcmin) are an error or they are
misprinted (rejected).
Non-interacting pair with NGC 4649 at 2.5 arcmin.
Photograph:
Ap. J., 56, 166, 1922.
Ap. J., 116, 64, 1952.
M.N.R.A.S., 98, 613, 1938.
Spectrum:
Ap. J., 116, 66, 1952.
A.J., 61, 97, 1956.
IAU Symp., No. 5, 1958 = Lick Contr. II, 81, 1958.

9. 1959VV....C...0000V
Re:VV 206b
= NGC 4647
V = +1,175 km/sec.
V = +1,040 km/sec from H{alpha}
(Page, T., Ap. J., 116, 63, 1952)
Yerkes Type: fS3-fD3

10. 1956AJ.....61...97H
Re:NGC 4647
HMS Note No. 148
Slit simultaneously on both nebulae: NGC 4647 and NGC 4649
(HMS Plate IVs).

11. 1918PLicO..13....9C
Re:NGC 4647
Nearly round, 2' in diameter; a faint, rather patchy spiral, with an almost
stellar nucleus.


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