1998AJ....116...68C

Query : 1998AJ....116...68C

1998AJ....116...68C - Astron. J., 116, 68-84 (1998/July-0)

Spiral galaxies with WFPC2. II. The nuclear properties of 40 Objects.

CAROLLO C.M., STIAVELLI M. and MACK J.

Abstract (from CDS):

We report the analysis of Hubble Space Telescope Wide Field Planetary Camera 2 F606W images of 40 spiral galaxies belonging to the sample introduced in Paper I, where 35 other targets were discussed. We describe the optical morphological properties of the new 40 galaxies, derive the surface brightness profiles for 25 of them, and present the results of photometric decompositions of these profiles into a ``bulge'' (R1/4 or exponential) and a disk component. The analysis of the enlarged sample of 75 galaxies puts on a statistically more solid ground the main results presented in Paper I: (1) In ~30% of the galaxies, the inner, morphologically distinct structures have an irregular appearance. Some of these ``irregular bulges'' are likely to be currently forming stars. (2) Resolved, central compact sources are detected in about 50% of the galaxies. (3) The central compact sources in galaxies with nuclear star formation are brighter, for similar sizes, than those in non-star-forming galaxies. (4) The luminosity of the compact sources correlates with the total galactic luminosity. Furthermore, the analysis of the enlarged sample of 75 objects shows the following: (a) Several of the nonclassical inner structures are well fitted by an exponential profile. These ``exponential bulges'' are typically fainter than R1/4 bulges, for a given total galaxy luminosity and (catalog) Hubble type later than Sab. (b) Irregular/exponential bulges typically host central compact sources. (c) The central sources are present in all types of disk galaxies, starting with systems as early as S0a. About 60% of Sb to Sc galaxies host a central compact source. Many of the galaxies that host compact sources contain a barred structure. (d) Galaxies with apparent nuclear star formation, which also host the brightest compact sources, are preferentially the early- and intermediate-type (S0a-Sb) systems. (e) None of the features depend on environment: isolated and nonisolated galaxies show indistinguishable properties. Independent of the physical nature of the nonclassical inner structures, our main conclusion is that a significant fraction of galaxies classified from the ground as relatively early-type spirals show a rich variety of central properties and little or no morphological/photometric evidence for a smooth, R1/4 law bulge.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Fundamental Parameters - Galaxies: Nuclei - Galaxies: Spiral - Galaxies: Structure

Simbad objects: 114

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Number of rows : 114
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NGC 134 GiP 00 30 21.920 -33 14 34.54   11.14 10.12 9.69 10.4 ~ 162 0
2 NAME NGC 134 Group GrG 00 30 50.0 -32 56 41           ~ 6 0
3 IC 1555 EmG 00 34 32.743 -30 01 04.60   14.39   13.47 14.1 ~ 52 0
4 NGC 406 G 01 07 25.060 -69 52 45.27   13.02   12.14 12.0 ~ 84 0
5 NGC 488 GiG 01 21 46.7967133224 +05 15 24.623017524   15.0       ~ 290 0
6 NGC 986 Sy1 02 33 34.3087856832 -39 02 42.128176704 11.72 11.74 10.91 10.10 11.3 ~ 183 1
7 NGC 1325 EmG 03 24 25.5769895640 -21 32 38.626241964   12.28 11.55 11.13 11.6 ~ 165 0
8 ESO 548-10 GiP 03 24 48.55 -21 20 10.4   13.33 12.83 12.52 13.1 ~ 64 0
9 NGC 1345 EmG 03 29 31.694 -17 46 42.04   13.67   12.96 13.6 ~ 93 0
10 ESO 548-29 Sy2 03 30 47.162 -21 03 29.64   14.23   13.16   ~ 41 0
11 NGC 1353 EmG 03 32 03.024 -20 49 08.98   12.19 11.35 10.77   ~ 126 0
12 LGG 97 GrG 03 35 25 -22 31.7           ~ 8 0
13 NGC 1385 EmG 03 37 28.323 -24 30 04.60 11.28 11.50 10.94 10.45 11.7 ~ 272 2
14 ESO 482-17 LSB 03 37 43.3466112456 -22 54 29.630832192   15.11   13.85   ~ 31 0
15 NGC 1395 SyG 03 38 29.789 -23 01 39.69   10.71   8.99   ~ 279 0
16 ESO 549-18 LSB 03 48 14.0636570472 -21 28 27.908585652   13.60   12.09   ~ 78 0
17 NGC 1483 GiG 03 52 47.608 -47 28 39.06   13.23   13.2 13.0 ~ 81 0
18 NAME Eridanus Star Cluster GlC 04 24 44.5 -21 11 13           ~ 178 1
19 NGC 1640 EmG 04 42 14.5058689872 -20 26 05.190613476   12.51 11.72 11.22 12.1 ~ 118 0
20 NGC 1688 GiG 04 48 23.789 -59 48 01.11   12.57   11.82 12.1 ~ 78 0
21 NGC 2082 GiG 05 41 51.0901098120 -64 18 03.828857148   12.79   11.45 11.6 ~ 96 0
22 NGC 2104 EmG 05 47 04.772 -51 33 10.61   13.52   12.27 13.1 ~ 59 0
23 ESO 205-7 AG? 05 54 14.6678912760 -51 58 35.299088436   15.26   13.68   ~ 24 0
24 NGC 2196 EmG 06 12 09.6565312104 -21 48 21.667049928   11.98   10.69 11.4 ~ 108 0
25 NGC 2339 H2G 07 08 20.5343958360 +18 46 48.812128644   12.3       ~ 144 1
26 NGC 2344 rG 07 12 28.6727815248 +47 10 00.302868408   12.99 12.14 11.57 10.80 ~ 93 0
27 NGC 2397 Sy1 07 21 19.8926907744 -69 00 05.031850284   12.85   11.57   ~ 92 0
28 NGC 2460 AGN 07 56 52.3308252792 +60 20 57.759748944   12.5       ~ 130 0
29 NGC 2758 EmG 09 05 31.2006079368 -19 02 33.697810140   13.99   13.32 14.0 ~ 50 0
30 ESO 498-5 EmG 09 24 40.6523073480 -25 05 33.764740620   14.23   13.05   ~ 44 0
31 NGC 2964 GiP 09 42 54.251 +31 50 49.97   12.0       ~ 275 1
32 NGC 3045 Sy1 09 53 17.6604331464 -18 38 42.337800960   13.73   12.72 13.2 ~ 47 0
33 NGC 3054 EmG 09 54 28.5871599144 -25 42 12.369525732   12.27   10.92 11.4 ~ 146 0
34 LGG 185 GrG 09 58 07.5 -27 14 49           ~ 6 0
35 NGC 3067 GiG 09 58 21.0726714528 +32 22 12.012636108   12.7       ~ 243 1
36 [FWB89] GrG 219 GrG 10 00 -27.0           ~ 6 0
37 ESO 499-37 AG? 10 03 41.840 -27 01 40.12   13.32   12.81 13.3 ~ 63 1
38 NGC 3177 AGN 10 16 34.1454628296 +21 07 23.000346984   12.8       ~ 146 0
39 NAME Leo III Group GrG 10 19.5 +20 46   10.1       ~ 19 0
40 GHCG 61 GrG 10 21.5 +21 07   11.8       ~ 8 0
41 LGG 194 GrG 10 21 35.2 +21 07 41           ~ 13 0
42 ESO 317-18 G 10 22 57.7 -42 11 11   16.37   15.80   ~ 5 0
43 ESO 317-20 Sy2 10 23 07.5772093800 -42 14 15.170385480   13.17   12.71 13.1 ~ 39 0
44 LGG 197 GrG 10 28 55.4 +28 47 52           ~ 7 0
45 NGC 3254 Sy2 10 29 19.922 +29 29 29.18   12.29 11.60     ~ 187 0
46 DV 54 GrG 10 29.8 +28 50           ~ 5 0
47 GHCG 60 GrG 10 30.1 +28 50   11.1       ~ 7 0
48 NGC 3259 Sy1 10 32 34.8614764344 +65 02 27.906884844   17.55 16.89     ~ 156 0
49 NGC 3277 Sy2 10 32 55.4484213912 +28 30 42.279280956 12.74 12.50 11.68     ~ 140 1
50 NGC 3370 GiG 10 47 04.0734572856 +17 16 25.315359780   12.4       ~ 251 0
51 LGG 219 GrG 10 50 45.0 +17 20 49           ~ 5 0
52 NAME NGC 3379 Group GrG 10 52.3 +15 15   8.5       ~ 14 0
53 NGC 3455 GiP 10 54 31.0921117824 +17 17 04.985473704   13.1       ~ 163 0
54 [HG82] 56 GrG 11 06 +14.8           ~ 7 0
55 NGC 3885 Sy2 11 46 46.4536031880 -27 55 20.056518516 12.19 12.68 11.89 11.46   ~ 129 1
56 NGC 3900 GiP 11 49 09.4563144120 +27 01 19.276393872   12.5       ~ 187 0
57 NGC 3898 LIN 11 49 15.370 +56 05 03.66   11.7       ~ 310 1
58 NGC 3928 AGN 11 51 47.6194275264 +48 40 59.261680020   13.1       ~ 174 0
59 ESO 572-22 GiG 11 56 22.496 -19 33 07.45   15.00   13.89 14.4 ~ 45 0
60 [FWB89] GrG 53 GrG 11 59 -19.3           ~ 5 0
61 NAME NGC 4038 Group GrG 11 59 57.2 -19 16 21           ~ 11 0
62 LGG 264 GrG 12 00 14 -01 14.1           ~ 3 0
63 NGC 4030 GiP 12 00 23.6102390784 -01 06 00.197099136   11.42   10.3 10.4 ~ 340 1
64 NGC 4038 EmG 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1332 1
65 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1691 0
66 NGC 4039 GiP 12 01 53.51 -18 53 10.3   11.08   9.77   ~ 1160 1
67 LGG 278 GrG 12 17 45.9 +06 09 17           ~ 9 0
68 NGC 4260 GiP 12 19 22.2401274336 +06 05 55.291593192   13.1       ~ 166 0
69 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1223 0
70 NAME Virgo W GrG 12 20.0 +05 48   6.3       ~ 84 0
71 NGC 4384 EmG 12 25 12.012 +54 30 22.07   13.5       ~ 125 1
72 LGG 285 GrG 12 26 33 +13 14.7           ~ 6 0
73 M 88 Sy2 12 31 59.1525062448 +14 25 13.148971824   14.33 13.18     ~ 804 1
74 [HG82] 41 GrG 12 36 +07.4           ~ 6 0
75 NGC 4806 AG? 12 56 12.3990039936 -29 30 10.005678108   13.44   12.52   ~ 64 0
76 LGG 331 GrG 13 07 40.0 -28 18 50           ~ 2 0
77 NGC 4980 Sy2 13 09 10.082 -28 38 30.44   13.53   12.75 13.6 ~ 68 0
78 ESO 443-80 EmG 13 11 09.59 -28 00 37.2   14.14   13.52 14.2 ~ 61 0
79 ESO 508-34 EmG 13 16 57.33 -25 20 14.0   14.84   13.73 14.6 ~ 43 0
80 NGC 5061 Sy2 13 18 05.054 -26 50 14.00   11.18 10.41 9.66 13.59 ~ 175 0
81 LGG 341 GrG 13 18 56.5 -26 53 40           ~ 5 0
82 IC 4222 GiG 13 19 40.5898644384 -27 25 43.779398916   14.01   12.93 13.33 ~ 39 0
83 NAME NGC 5101 Group GrG 13 20.0 -26 14           ~ 5 0
84 LGG 349 GrG 13 24 32.1 -37 36 56           ~ 3 0
85 NGC 5121 AG? 13 24 45.6281452848 -37 40 55.892160696   12.54 11.41 10.82 11.8 ~ 76 0
86 NGC 5188 GiG 13 31 28.293 -34 47 40.10   12.68 11.85 16.89   ~ 84 0
87 NGC 5377 AGN 13 56 16.6722507720 +47 14 08.568249072   12.39 11.46 10.87 10.25 ~ 230 1
88 [HG82] 72 GrG 13 57.9 +48 18           ~ 2 0
89 NGC 5448 LIN 14 02 50.072 +49 10 21.53   12.7       ~ 162 0
90 LGG 372 GrG 14 03 12 +49 09.4           ~ 5 0
91 GHCG 135 GrG 14 16.4 +49 16   10.0       ~ 6 0
92 IC 4390 GiG 14 16 59.180 -44 58 38.52   13.81   12.69   ~ 37 0
93 NGC 5806 AGN 15 00 00.4088018736 +01 53 28.779594792   12.40 11.70 10.94 11.6 ~ 282 1
94 [HG82] 50 GrG 15 03 +02.2           ~ 7 0
95 LGG 392 GrG 15 03 50 +01 55.6           ~ 6 0
96 NAME NGC 5846 Group GrG 15 05 47.0 +01 34 25           ~ 151 0
97 NGC 5879 AGN 15 09 46.7271710112 +57 00 00.538947900   11.9       ~ 247 1
98 NGC 5982 LIN 15 38 39.778 +59 21 21.21   12.4       ~ 293 0
99 LGG 402 GrG 15 39 26.2 +59 04 11           ~ 10 0
100 [FWB89] GrG 229 GrG 15 39.5 +59 10   11.2       ~ 13 0
101 NGC 5985 SyG 15 39 37.0545742176 +59 19 55.216886664   15.24 14.22     ~ 249 0
102 NGC 6000 Sy2 15 49 49.556 -29 23 12.50   13.02   11.27 12.0 ~ 112 1
103 NGC 6239 GiC 16 50 05.028 +42 44 23.44 12.75 12.94 12.45     ~ 86 1
104 NGC 6340 GiP 17 10 24.8346254376 +72 18 15.919996608   11.87 11.01     ~ 186 1
105 NGC 6384 AG? 17 32 24.2848390896 +07 03 37.531624968   13.2       ~ 304 0
106 NGC 6810 Sy2 19 43 34.4178888528 -58 39 20.192400540   12.34 11.22 10.71   ~ 157 0
107 NGC 7280 GiP 22 26 27.5758899936 +16 08 53.421593496   13.6       ~ 159 0
108 IC 5256 EmG 22 49 45.75792 -68 41 25.4616           ~ 28 0
109 NGC 7421 EmG 22 56 54.3533970816 -37 20 50.437978152 12.61 12.64 11.93 11.71 12.1 ~ 123 1
110 IC 1459 AGN 22 57 10.60682195 -36 27 43.9966421   10.96 11.85 9.34 10.3 ~ 624 2
111 NAME IC 1459 Group GrG 22 57 16 -36 25.4           ~ 36 0
112 NAME Grus GrG 23 18 -42.4           ~ 40 0
113 NGC 7690 AG? 23 33 02.5954925352 -51 41 54.018353580   12.93 12.01 12.19 12.6 ~ 69 0
114 ESO 240-12 EmG 23 38 49.6480565352 -51 51 35.363762280   14.35   13.64 14.1 ~ 33 0

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