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Date and Time of the Query: 2019-03-23 T03:39:46 PDT
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Notes for object NGC 5101

13 note(s) found in NED.


1. 2004MNRAS.355.1251L
Re:NGC 5101
NGC 5101 (Fig. 8c, available in the online version; see also Fig. 2).
This is another case of an 'ansae'-type bar with two strong material
condensations at the outer edges. The galaxy has an inner ring filled
by the bar along its major axis. This galaxy also has two amplitude
maxima in the polar angle map, appearing along the bar major axis. The
outer maximum is located at the radius of the inner ring, showing also
short spiral-like arm segments, which might be relics of the ring
formation. The A2 profile for this galaxy is asymmetric, declining
rather rapidly after the maximum, which is manifested also in the Q_T_
profile. A natural explanation for this decline is that the bar ends
near to the inner ring. Like NGC 5701, NGC 5101 has an R'_2_ outer
pseudo-ring in blue light (appendix 3 of RC3).

2. 2004MNRAS.355.1251L
Re:NGC 5101
NGC 5101 (Fig. 8c, available in the online version; see also Fig. 2). This is
another case of an "ansae"-type bar with two strong material condensations at
the outer edges. The galaxy has an inner ring flled by the bar along its major
axis. This galaxy also has two amplitude maxima in the polar angle map,
appearing along the bar major axis. The outer maximum is located at the radius
of the inner ring, showing also short spiral-like arm segments, which might be
relics of the ring formation. The A_2_ profle for this galaxy is asymmetric,
declining rather rapidly after the maximum, which is manifested also in the Q_T_
profle. A natural explanation for this decline is that the bar ends near to the
inner ring. Like NGC 5701, NGC 5101 has an R'_2_ outer pseudo-ring in blue light
(appendix 3 of RC3).

3. 2004A&A...415..941E
Re:NGC 5101
NGC 5101: Suggested as a possible double bar by Jungwiert et al. (1997).
However, as they pointed out, the ellipticity peak is very weak and close to
their seeing limit. Unsharp masking of their H-band image (courtesy Francoise
Combes) suggests a possible nuclear ring or spiral. No higher-resolution images
are available.

4. 2002ApJS..143...73E
Re:NGC 5101
NGC 5101.---(R)SB0/a: Bright nuclear point source embedded in a large,
bright, circular bulge. At fainter isophotes the bulge becomes
elliptical and is threaded by a thin, prominent bar. There are ansae
at the ends of the bar that form the base of a ring/spiral arms. No
evidence of star formation or structure in the disk.

5. 1997A&AS..125..479J
Re:NGC 5101
NGC 5101 (RSB0/a, 1"~110 pc, I=33.6^deg^)
The isophotes inside the large-scale bar (e_max_=0.56 at a=50") are strongly
twisted ({delta}PA~106^deg^). Such a twist is not explainable by mere
projection effects in view of rather low galaxy inclination. Either there is an
intrinsic gradual twist or a nuclear bar as would suggest the ellipticity
maximum and the PA plateau at a<3": however the proximity of this feature to
the center as well as its low ellipticity (e_max_=0.06 at a=2") make this
hypothesis very speculative.

6. 1994CAG1..B...0000S
Re:NGC 5101
Hubble Atlas, p. 42
SBa
(E,L,0)
CD-1380-S/Br
March 20/21, 1980
103aO + GG385
40 min
NGC 5101 is one of the few galaxies of this type in the Hubble
Atlas (p. 42). The other is NGC 2217 (Hubble Atlas, p. 43).
The purpose of the low-contrast print here is to show the
broken-ring nature of the inner disk at the place where the ansae,
which define the bar, terminate. This pattern of an inner broken ring
in the disk (the broad spiral sweeps) is emphasized here and in the
three galaxies on the next page.
The faint arms that make up the outer (second) external
broken-ring structure for the NGC 0210 look (see the discussion of NGC
1543 on the previous panel) in NGC 5101 are just visible on this print
near the outer borders. They are well seen on panel 103, where the
inner structures shown here are burned out there.
The pattern of these inner "massive" smooth spiral inner disk
rims, seen well in the print here, also exists in NGC 2217 on the next
page.

7. 1994CAG1..B...0000S
Re:NGC 5101
Hubble Atlas, p. 42
SBa
(E,L,0)
CD-1380-S/Br
March 20/21, 1980
103aO + GG385
40 min
The broken-disk pattern, where the rims of the disk are the inner
massive spiral arms, is as prominent here as in the prototype case of
NGC 4596 at the left.
A high-contrast print of the outer regions of NGC 5101 is shown
on panel 103.

8. 1994CAG1..B...0000S
Re:NGC 5101
Hubble Atlas, p. 42
SBa
(E,L,0)
CD-1380-S/Br
March 20/21, 1980
103aO + GG385
40 min
The regions of the bar and the inner disk of NGC 5101 shown in
the underprinted images on panels 100 and 101 are burned out in the
high-contrast print here, but the outer arms are well defined. The
regions where these arms connect to the edge of the inner disk are
more easily identified here than in either NGC 1291 or NGC 1543 on the
preceding page. A higher star-formation rate is also evident in the
thin, well-defined outer arms here than in these earlier two members
of the NGC 210-like SBa-subclass galaxies. (See the discussion of NGC
1543 on panel 99.)
Although the outer spiral arms are of very low surface brightness
(see the insert print in the Hubble Atlas), the spiral pattern is
definite. The morphological type is SBa beyond doubt. The transition
classifications of RSB0/a (with an external ring) in the RC2, and of
SB0/SBa in the Hubble Atlas, both based on a 200-inch plate, are
inappropriate.

9. 1985SGC...C...0000C
Re:NGC 5101
Plate 1484
Overexposed center, very bright bulge, slightly patchy arms. Type later
than NGC 1291.
Plate 2347
Overexposed center, bright bar, (r'): 1.7 x 1.4, (R'): 4.4 x 4.1 with very
faint knots.

10. 1982ESOU..C...0000L
Re:ESO 131901-2710.2
=ESO 508- G 58
in cluster

11. 1974UGCA..C...0000N
Re:UGCA 351
UGCA 351:
= NGC 5101
(R)SB(rs)0/a (RC1)
paired with
NGC 5078 at 26.0, 273, (3.6 x 1.7), Sa?,
very bright nuclear bulge, strong absorption along edge;

12. 1964RC1...C...0000d
Re:NGC 5101
Very bright diffuse nucleus. Narrow bright smooth bar: 1.75 arcmin x
0.2 arcmin with small blobs. Weak (r): 1.6 arcmin x 1.4 arcmin. Very faint,
smooth outer whorls form a pseudo (R): 5.0 arcmin x 4.3 arcmin.
HA 88,2 minor dimensions (0.6: arcmin. series a) rejected, error or bar only?

13. 1961Hubbl.B...0000S
Re:NGC 5101
SB03/SBa(s)
PH-906-S
Mar. 24/25, 1955
103aD + GG11
45 min
Enlarged 4.5X
The inside lens is "broken" at both ends of the bar.
A very faint arm structure begins at the ends of the bar.
This pattern is not circular as in NGC 2859 but is broken
into a rudimentary spiral pattern shown in the insert.
This galaxy would be called SB03 on poor or small-scale
plates, but this reproduction from a 200-inch plate indicates
an exceedingly early SBa(s).


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