2001AJ....122.1298G

Query : 2001AJ....122.1298G

2001AJ....122.1298G - Astron. J., 122, 1298-1318 (2001/September-0)

Homogenization of the stellar population along late-type spiral galaxies.

GADOTTI D.A. and DOS ANJOS S.

Abstract (from CDS):

We present a study of the broadband UBV color profiles for 257 Sbc barred and nonbarred galaxies, using photoelectric aperture photometry data from the literature. Using robust statistical methods, we have estimated the color gradients of the galaxies, as well as the total and bulge mean colors. A comparative photometric study using CCD images was done. In our sample, the color gradients are negative (reddish inward) in approximately 59% of the objects, are almost null in 27%, and are positive in 14%, considering only the face-on galaxies, which represent approximately 51% of the sample. The results do not change, essentially, when we include the edge-on galaxies. As a consequence of this study we have also found that barred galaxies are overrepresented among the objects having null or positive gradients, indicating that bars act as a mechanism of homogenization of the stellar population. This effect is more evident in the U-B color index, although it can also be detected in the B-V color. A correlation between the total and bulge colors was found that is a consequence of an underlying correlation between the colors of bulges and disks found by other authors. Moreover, the mean total color is the same irrespective of the gradient regime, while bulges are bluer in galaxies with null or positive gradients, which indicates an increase of the star formation rate in the central regions of these objects. We have also made a quantitative evaluation of the amount of extinction in the center of these galaxies. This was done using the Wide Field Planetary Camera 2 (WFPC2) and the Near Infrared Camera and Multi-Object Spectrometer (NICMOS) Hubble Space Telescope (HST) archival data, as well as CCD B, V, and I images. We show that although the extinction in the V-band can reach values up to 2 mag in the central region, it is unlikely that dust plays a fundamental role in global color gradients. We found no correlation between color and O/H abundance gradients. This result could suggest that the color gradients are more sensitive to the age rather than to the metallicity of the stellar population. However, the absence of this correlation may be caused by dust extinction. We discuss this result by considering a picture in which bars are a relatively fast, recurrent phenomenon. These results are not compatible with a pure classical monolithic scenario for bulge and disk formation. On the contrary, they favor a scenario in which both these components are evolving in a correlated process in which stellar bars play a crucial role.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Evolution - Galaxies: Formation - Galaxies: Spiral - Galaxies: Statistics - Galaxies: Stellar Content - Galaxies: Structure

Errata: erratum vol. 124, p. 1825 (2002)

Simbad objects: 234

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Number of rows : 234
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 1 GiP 00 07 15.8562637560 +27 42 29.020113144   13.4       ~ 126 0
2 NGC 24 EmG 00 09 56.542 -24 57 47.27 12.12 12.20 11.58 11.46 11.5 ~ 269 1
3 NGC 134 EmG 00 30 21.61 -33 14 46.2   11.14 10.12 9.69 10.4 ~ 176 1
4 NGC 151 LIN 00 34 02.7914552616 -09 42 18.979473168 12.44 12.31 11.59 12.2 11.5 ~ 145 2
5 NGC 150 Sy1 00 34 15.4727570592 -27 48 12.824363736   12.04 11.13 10.92 11.7 ~ 208 0
6 NGC 157 Sy2 00 34 46.7879913696 -08 23 47.273597952   11.0   10.03 10.7 ~ 366 1
7 NGC 210 GiP 00 40 34.9927609368 -13 52 21.999585108   11.8   11.00 11.4 ~ 181 0
8 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
9 NGC 278 H2G 00 52 04.3452013728 +47 33 01.675026036   10.5       ~ 244 1
10 NGC 289 Sy2 00 52 42.365 -31 12 20.99   11.36 13.44 10.38 11.4 ~ 256 0
11 NGC 309 EmG 00 56 42.6581930088 -09 54 49.952323224   12.7   11.76 12.4 ~ 175 0
12 NGC 440 GiG 01 12 48.5149728264 -58 16 56.411043924   13.75   12.66   ~ 23 0
13 NGC 470 GiP 01 19 44.8526263032 +03 24 36.027176544 12.63 12.53 11.78     ~ 287 1
14 NGC 488 GiG 01 21 46.7967133224 +05 15 24.623017524   15.0       ~ 299 0
15 NGC 578 AG? 01 30 28.548 -22 40 01.96   11.72 10.93 10.63 11.6 ~ 177 0
16 NGC 613 AGN 01 34 18.235 -29 25 06.56   10.77 12.71 9.50 10.6 ~ 446 3
17 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1934 1
18 NGC 685 Sy2 01 47 42.8337567552 -52 45 42.808467960   12.02   11.08 11.9 ~ 130 0
19 NGC 782 Sy1 01 57 40.3913561808 -57 47 24.604527516   12.63   11.51 12.3 ~ 60 0
20 NGC 779 EmG 01 59 42.6583466448 -05 57 51.372885780   12.1   10.91 11.7 ~ 135 0
21 NGC 864 H2G 02 15 27.641 +06 00 09.43   12.00       ~ 235 1
22 NGC 908 Sy1 02 23 04.569 -21 14 01.86   11.03 10.18 9.84 10.6 ~ 202 1
23 NGC 958 Sy2 02 30 42.8187658032 -02 56 20.526742608   13.0   11.81 12.4 ~ 164 0
24 NGC 1055 EmG 02 41 45.233 +00 26 35.45 11.59 11.40 10.59 10.5 10.7 ~ 297 2
25 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4897 2
26 NGC 1073 EmG 02 43 40.598 +01 22 33.13   11.3   11.3 11.8 ~ 335 0
27 NGC 1084 EmG 02 45 59.926 -07 34 43.10 11.22 11.59 10.73 10.55 11.1 ~ 386 2
28 NGC 1097 LIN 02 46 19.059 -30 16 29.68 10.46 9.97 9.48 8.72 9.8 ~ 1448 3
29 NGC 1087 H2G 02 46 25.1550134904 -00 29 55.457857644   11.5   11.4 11.5 ~ 379 0
30 NGC 1187 Sy1 03 02 37.5895048560 -22 52 02.479512648   11.41   10.43 11.2 ~ 228 1
31 NGC 1232 EmG 03 09 45.514 -20 34 45.48   10.67 9.87 9.53 10.2 ~ 296 0
32 NGC 1255 GiG 03 13 31.9885639248 -25 43 30.399262428   11.80   10.66 11.5 ~ 156 0
33 NGC 1288 EmG 03 17 13.2055744344 -32 34 33.299962068   12.75 12.11 11.63 12.1 ~ 75 0
34 NGC 1300 Sy2 03 19 41.0462219928 -19 24 40.187565432   11.16 10.42 9.90 10.7 ~ 616 0
35 IC 1954 GiG 03 31 31.393 -51 54 17.54   12.14   11.15 11.8 ~ 149 0
36 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1987 2
37 NGC 1425 EmG 03 42 11.4831633240 -29 53 36.186684252   11.61   11.6 10.9 ~ 209 0
38 NGC 1421 EmG 03 42 29.2806642840 -13 29 16.951034724   12.38       ~ 203 1
39 IC 342 AGN 03 46 48.514 +68 05 45.98   10.5       ~ 1579 1
40 IC 1993 GiG 03 47 04.8369103704 -33 42 35.877997728   12.50   11.16 11.7 ~ 93 0
41 NGC 1483 GiG 03 52 47.608 -47 28 39.06   13.23   13.2 13.0 ~ 88 0
42 NGC 1515 EmG 04 04 02.6779745760 -54 06 00.505781388   11.96 11.03 10.48 11.2 ~ 125 0
43 NGC 1536 EmG 04 10 59.838 -56 28 49.64   13.29 13.15 12.19   ~ 88 0
44 NGC 1566 Sy1 04 20 00.3968473248 -54 56 16.624708764 10.29 10.19 9.73 9.21 10.1 ~ 1051 2
45 NGC 1530 AG? 04 23 27.102 +75 17 44.05   13.40       ~ 287 1
46 NGC 1614 Sy1 04 34 00.027 -08 34 44.57   14.66 13.99     ~ 697 1
47 NGC 1620 GiG 04 36 37.3587737352 -00 08 36.824388684   12.5   12.1 12.2 ~ 147 0
48 NGC 1637 Sy2 04 41 28.1926876152 -02 51 28.667815488   11.4   11.0 11.3 ~ 444 0
49 NGC 1672 SyG 04 45 42.552 -59 14 50.68 10.29 10.53 9.68 9.53 10.2 ~ 461 2
50 NGC 1703 GiG 04 52 52.145 -59 44 31.98   12.31   11.43 11.6 ~ 91 0
51 NGC 1796 GiG 05 02 42.4300961400 -61 08 23.840826324 13.63 13.01 12.48 12.21 12.5 ~ 76 0
52 NGC 1792 Sy1 05 05 14.4036930408 -37 58 50.064531168   10.68 10.18 9.53 10.4 ~ 261 1
53 NGC 1784 Sy2 05 05 27.118 -11 52 17.12   11.4   10.92 11.5 ~ 123 0
54 MCG-02-14-004 Sy2 05 11 40.8437378448 -14 47 21.640343964   12.7   12.00 12.5 ~ 38 0
55 NGC 1832 Sy2 05 12 03.3433348776 -15 41 16.021694220   12.2   11.07 11.8 ~ 245 1
56 NGC 1888 Sy2 05 22 34.442 -11 29 58.34   13   11.47   ~ 72 0
57 NGC 2082 GiG 05 41 51.0901098120 -64 18 03.828857148   12.79   11.45 11.6 ~ 101 0
58 NGC 1961 LIN 05 42 04.6327819680 +69 22 42.411028872   11.73 10.99     ~ 362 3
59 NGC 2090 GiG 05 47 01.8557074752 -34 15 01.679264784 12.17 11.70 11.20 10.43 11.0 ~ 206 1
60 NGC 2206 Sy1 06 15 59.8325482128 -26 45 55.900396980   12.91   11.81 12.4 ~ 50 0
61 NGC 2207 AG? 06 16 22.0336889136 -21 22 21.759218400   11.48 10.65 10.21 11.9 ~ 301 4
62 NGC 2223 GiG 06 24 35.9228253792 -22 50 17.745492084   12.46   11.18 11.9 ~ 93 0
63 NGC 2339 H2G 07 08 20.5343958360 +18 46 48.812128644   12.3       ~ 150 1
64 NGC 2268 GiG 07 14 17.441 +84 22 56.18   12.1       ~ 152 0
65 NGC 2347 LIN 07 16 04.087 +64 42 41.54   13.2       ~ 130 0
66 NGC 2377 AGN 07 24 56.816 -09 39 33.67   15.80 14.77     ~ 116 0
67 NGC 2336 GiP 07 27 04.050 +80 10 41.05   13.46 12.51     ~ 251 0
68 NGC 2389 AGN 07 29 04.6432443888 +33 51 39.428739684   13.5       ~ 82 2
69 NGC 2417 EmG 07 30 12.0818600616 -62 15 09.284120640   13.09   11.88 12.3 ~ 62 0
70 NGC 2442 LIN 07 36 23.7700545576 -69 31 50.997856332 11.47 11.15 10.42 9.71 10.4 ~ 243 1
71 Z 235-30 Sy1 07 42 32.8210670808 +49 48 34.783809768   14.74 14.27     ~ 769 1
72 Z 286-62 Sy1 07 47 29.0792948928 +60 56 00.658649544   15.18 14.71     ~ 253 0
73 NGC 2487 LIN 07 58 20.4641458656 +25 08 57.241058784   13.28 12.23     ~ 128 0
74 NGC 2512 GiG 08 03 07.8493645344 +23 23 30.466464180   14.2       ~ 83 1
75 NGC 2565 GiG 08 19 48.3010303872 +22 01 53.130704844   13.8       ~ 130 0
76 NGC 2595 H2G 08 27 42.0263359560 +21 28 44.704954668   13.9       ~ 198 0
77 NGC 2613 Sy2 08 33 22.841 -22 58 25.21   11.29 10.42 9.75 10.5 ~ 180 0
78 NGC 2608 AG? 08 35 17.3298089184 +28 28 24.236326236   13.2       ~ 189 0
79 NGC 2683 AGN 08 52 41.3064829584 +33 25 18.597681516 11.57 10.68 9.79 9.38   ~ 475 1
80 NGC 2712 Sy2 08 59 30.4854395352 +44 54 50.079495852   12.30       ~ 194 0
81 NGC 2715 GiG 09 08 06.2049083976 +78 05 07.227661632   11.9       ~ 201 0
82 NGC 2776 AGN 09 12 14.531 +44 57 17.62   12.249 11.693 11.285 10.77 ~ 176 0
83 NGC 2815 Sy2 09 16 19.7483020320 -23 37 59.733390648   12.70 11.84 11.26 11.9 ~ 120 1
84 NGC 2874 LIN 09 25 47.3242685280 +11 25 28.605679896   13.5       ~ 69 1
85 NGC 2889 GiG 09 27 12.5966619648 -11 38 36.579108912   12   11.31   ~ 53 0
86 NGC 2903 AGN 09 32 10.111 +21 30 02.99 10.44 9.75 9.07 8.68   ~ 1204 3
87 NGC 2935 Sy2 09 36 44.8527810504 -21 07 41.560449096   11.84 10.04 10.44 11.6 ~ 134 1
88 NGC 2955 GiG 09 41 16.6170758448 +35 52 56.147040624   13.90       ~ 116 0
89 NGC 2964 H2G 09 42 54.251 +31 50 49.97   12.0       ~ 292 1
90 NGC 2989 Sy2 09 45 25.225 -18 22 25.96   13.51 14.50 12.46 12.9 ~ 93 0
91 NGC 2997 GiG 09 45 38.7542237472 -31 11 27.345810192   9.97 9.41 8.84 9.9 ~ 454 1
92 NGC 3001 Sy1 09 46 18.6495292776 -30 26 15.055702296   12.15 11.83 11.08 11.7 ~ 77 1
93 NGC 3054 EmG 09 54 28.5871599144 -25 42 12.369525732   12.27   10.92 11.4 ~ 151 0
94 NGC 3095 Sy1 10 00 05.8037684890 -31 33 09.714480192   12.45 11.58 12.2 11.7 ~ 99 1
95 NGC 3079 Sy2 10 01 57.8789863992 +55 40 47.449758324 11.57 11.54 10.86     ~ 1476 3
96 NGC 3124 EmG 10 06 39.9100704816 -19 13 17.646034692   12.84   11.51 12.2 ~ 83 0
97 IC 2554 AG? 10 08 50.563 -67 01 51.07   12.43 13.20 11.24 11.9 ~ 66 0
98 NGC 3145 GiP 10 10 09.8733275136 -12 26 01.801049136   12.4   11.60 11.9 ~ 120 0
99 NGC 3177 SyG 10 16 34.1454628296 +21 07 23.000346984   12.8       ~ 155 1
100 NGC 3223 Sy2 10 21 35.0831008008 -34 16 00.504571368   11.82 10.82 10.35 11.2 ~ 174 0
101 NGC 3281 Sy2 10 31 52.086 -34 51 13.40   12.62 14.02 11.17   ~ 392 1
102 NGC 3289 GiG 10 34 07.4195648472 -35 19 24.030465024   13.68 14.13 12.35   ~ 42 0
103 NGC 3318 Sy2 10 37 15.5052550728 -41 37 38.912719512   12.71 11.97 11.77 12.4 ~ 107 0
104 NGC 3310 AGN 10 38 45.85707 +53 30 11.8940   12.45 12.15     ~ 809 1
105 NGC 3333 Sy2 10 39 49.8268894152 -36 02 10.027504932   13.91   12.65 13.3 ~ 53 1
106 NGC 3347 EmG 10 42 46.6312655976 -36 21 11.738456136   12.18 11.35 10.90   ~ 71 0
107 M 95 GiP 10 43 57.7313485800 +11 42 13.301191332 10.71 10.51 9.73 9.48   ~ 1238 2
108 NGC 3353 AGN 10 45 22.390 +55 57 37.36 12.90 13.25 12.79     ~ 378 1
109 NGC 3390 LIN 10 48 04.343 -31 32 00.04   13.24 13.41 11.43   ~ 90 1
110 NGC 3521 EmG 11 05 48.5680991376 -00 02 09.245076540 10.06 9.83 9.02 10.1 9.6 ~ 879 2
111 M 66 AGN 11 20 15.0 +12 59 29 9.85 9.65 8.92     ~ 1509 4
112 NGC 3628 LIN 11 20 17.018 +13 35 22.16   10.42 9.48 9.22   ~ 853 3
113 NGC 3689 GiC 11 28 11.0180259864 +25 39 40.104503496   12.9       ~ 89 1
114 NGC 3810 GiC 11 40 58.7615811624 +11 28 15.808680696   11.4       ~ 351 2
115 NGC 4088 AGN 12 05 34.2230093952 +50 32 21.064017876   11.2       ~ 428 1
116 NGC 4096 GiG 12 06 01.161 +47 28 42.09   11.61   10.86   ~ 271 0
117 NGC 4156 LIN 12 10 49.6078480392 +39 28 22.045321380   15.01 14.32     ~ 117 1
118 NGC 4216 AGN 12 15 54.444 +13 08 57.84 11.51 10.99 10.01     ~ 424 1
119 M 99 H2G 12 18 49.625 +14 24 59.36 10.45 10.44 9.87     ~ 1004 2
120 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
121 NGC 4273 H2G 12 19 56.063 +05 20 36.12   12.3       ~ 274 0
122 M 61 Sy2 12 21 54.9282582888 +04 28 25.597367184 10.07 10.18 9.65     ~ 1084 1
123 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1963 2
124 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1433 2
125 NGC 4414 GiC 12 26 27.1276893168 +31 13 24.626206488 11.12 10.96 10.12     ~ 593 2
126 M 88 Sy2 12 31 59.1525062448 +14 25 13.148971824   14.33 13.18     ~ 843 1
127 NGC 4527 AGN 12 34 08.49600 +02 39 13.7160   12.4       ~ 549 2
128 NGC 4535 H2G 12 34 20.3443516704 +08 11 51.908488116   11.1       ~ 679 0
129 NGC 4536 H2G 12 34 27.12887 +02 11 16.3680 11.14 11.16 10.55 17.393   ~ 913 3
130 M 91 LIN 12 35 26.4446761320 +14 29 46.760333748   14.63 13.57     ~ 639 0
131 NGC 4565 Sy2 12 36 20.804 +25 59 14.61   13.61 12.43     ~ 991 0
132 M 58 Sy2 12 37 43.59747 +11 49 05.1240 10.80 10.48 9.66     ~ 1140 2
133 NGC 4593 Sy1 12 39 39.4435107024 -05 20 39.034988448   13.95 13.15     ~ 1179 0
134 NGC 4647 H2G 12 43 32.542 +11 34 56.89   12.5 12.5     ~ 423 1
135 NGC 4651 LIN 12 43 42.6376070448 +16 23 36.002649300   11.30 10.92 10.42 9.84 ~ 537 0
136 NGC 4666 AGN 12 45 08.676 -00 27 42.88   11.7   11.5 10.7 ~ 421 1
137 NGC 4699 EmG 12 49 02.186 -08 39 51.49   10.8   10.01 10.3 ~ 226 0
138 NGC 4900 AGN 13 00 39.1193785512 +02 30 05.154593868   12.8       ~ 267 1
139 NGC 4911 LIN 13 00 56.0616749160 +27 47 27.152821212 14.58 13.7 13.33 12.601 12.068 ~ 218 1
140 NGC 4902 GiP 13 00 59.7429437400 -14 30 48.759182748   12.0   10.86 11.4 ~ 153 0
141 NGC 4939 Sy2 13 04 14.3280524928 -10 20 22.300454724   14.81 13.80 10.92   ~ 332 1
142 NGC 5005 LIN 13 10 56.312 +37 03 32.19   14.67 13.67     ~ 567 2
143 NGC 5033 Sy2 13 13 27.535 +36 35 37.14   11.01 12.03 9.73   ~ 909 1
144 M 63 LIN 13 15 49.2741893928 +42 01 45.728076108   9.34 8.59 8.35   ~ 1292 2
145 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
146 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2778 2
147 NGC 5248 G 13 37 32.0145074088 +08 53 06.496982448   11.4       ~ 554 0
148 NGC 5390 LIN 13 55 39.9385716624 +40 27 42.380606592   12.81 11.93 10.04   ~ 373 1
149 NGC 5364 GiP 13 56 12.004 +05 00 52.06   13.2       ~ 273 0
150 MCG-07-29-005 GiG 14 00 46.4062361640 -45 25 06.607899948   12.73   12.8 12.6 ~ 36 0
151 NGC 5426 GiP 14 03 24.8484884640 -06 04 08.186632788   12.6   12.76 12.4 ~ 178 0
152 APG 271 IG 14 03 25.45 -06 02 59.9           ~ 209 0
153 NGC 5427 Sy1 14 03 26.0408044536 -06 01 50.682790236   14.67 13.96 11.54   ~ 307 0
154 NGC 5483 EmG 14 10 25.0439323920 -43 19 28.682248872   11.86 11.38 10.62 11.4 ~ 81 0
155 NGC 5530 AG? 14 18 27.10 -43 23 14.8   11.78 11.00 10.84 11.4 ~ 110 0
156 NGC 5592 Sy1 14 23 55.0434720984 -28 41 16.776034656   13.62 12.71 12.66   ~ 57 0
157 NGC 5633 EmG 14 27 28.3616823288 +46 08 47.521403916   13.176 12.932 12.449 11.575 ~ 195 1
158 NGC 5653 AGN 14 30 10.4187147048 +31 12 55.568509596   12.7       ~ 184 1
159 IC 4444 EmG 14 31 38.6111794632 -43 25 09.440780520   12.25   11.08 12.2 ~ 72 1
160 NGC 5643 Sy2 14 32 40.778 -44 10 28.60   11.03 13.60 9.92 10.6 ~ 652 1
161 NGC 5676 GiG 14 32 46.853 +49 27 28.11   11.7       ~ 265 1
162 NGC 5746 GiP 14 44 56.005 +01 57 17.06   12.3       ~ 375 0
163 NGC 5792 Sy2 14 58 22.709 -01 05 27.89   11.8   11.8 11.1 ~ 194 1
164 NGC 5850 LIN 15 07 07.6828131840 +01 32 39.513281352   11.5   10.79 11.1 ~ 330 1
165 NGC 5859 LIN 15 07 34.750 +19 34 56.21   13.10 12.47     ~ 94 0
166 NGC 5861 Sy2 15 09 16.09127 -11 19 17.9800   13.34 12.62 11.03 11.5 ~ 186 0
167 NGC 5879 AGN 15 09 46.7271710112 +57 00 00.538947900   11.9       ~ 262 0
168 NGC 5899 Sy2 15 15 03.252 +42 02 59.47   14.19 13.21     ~ 219 0
169 NGC 5906 GiG 15 15 53.687 +56 19 43.86   11.4       ~ 807 0
170 NGC 5921 AG? 15 21 56.561 +05 04 13.94   12.7       ~ 286 0
171 NGC 5962 GiP 15 36 31.6809457296 +16 36 27.933030504 12.04 11.98 11.34     ~ 258 1
172 NGC 5970 GiP 15 38 29.9475459984 +12 11 11.681818188   12.2       ~ 182 0
173 NGC 5985 SyG 15 39 37.0545742176 +59 19 55.216886664   15.24 14.22     ~ 267 0
174 NGC 5987 GiG 15 39 57.3733917696 +58 04 46.195631832   13.3       ~ 98 0
175 NGC 6052 rG 16 05 12.8715178104 +20 32 32.607297132 13.01 13.44 13.00     ~ 362 2
176 NGC 6181 H2G 16 32 20.96927 +19 49 35.7710   12.7       ~ 258 1
177 NGC 6207 GiC 16 43 03.750 +36 49 56.73   12.189 11.651 11.240 10.691 ~ 258 0
178 NGC 6239 GiC 16 50 05.028 +42 44 23.44 12.75 12.94 12.45     ~ 92 1
179 NGC 6221 Sy2 16 52 46.329 -59 13 00.99   10.90 13.45 9.68 10.4 ~ 328 0
180 NGC 6412 GiG 17 29 37.522 +75 42 15.59   12.40       ~ 155 0
181 NGC 6384 AG? 17 32 24.2848390896 +07 03 37.531624968   13.2       ~ 313 0
182 NGC 6574 GiG 18 11 51.2465713056 +14 58 54.747570108   12.5       ~ 182 0
183 NGC 6643 AG? 18 19 46.370 +74 34 06.23   11.80       ~ 320 1
184 NGC 6699 Sy2 18 52 02.0418902448 -57 19 14.543870484   12.86 12.00 11.64 12.2 ~ 64 0
185 NGC 6764 LIN 19 08 16.4036066688 +50 55 59.519979084   15.00 14.32     ~ 307 1
186 NGC 6744 GiG 19 09 46.1335950504 -63 51 26.897079024   9.28 8.25 8.08 9.6 ~ 303 0
187 NGC 6753 Sy2 19 11 23.635 -57 02 58.44   11.84 11.04 10.31 11.0 ~ 177 1
188 IC 4839 EmG 19 15 34.1151003024 -54 37 36.362672796   13.20 13.66 11.83 12.2 ~ 40 0
189 NGC 6769 GiG 19 18 22.6014605376 -60 30 03.228638184   12.33 11.75 10.93   ~ 60 1
190 IC 4845 Sy1 19 20 22.4673682968 -60 23 21.034630140 12.50 12.87 11.57 11.41 12.0 ~ 43 1
191 NGC 6780 EmG 19 22 50.8982173200 -55 46 33.166263972   13.48   12.23 12.8 ~ 40 0
192 IC 4852 Sy2 19 26 25.3732412928 -60 20 09.718754460   13.46 12.43 12.35 12.7 ~ 34 0
193 NGC 6814 Sy1 19 42 40.5862186152 -10 19 25.108718844   15.33 14.21 11.7 11.3 ~ 866 0
194 NGC 6872 AG? 20 16 56.4025198800 -70 46 05.070595584   11.97 11.59 10.71 11.9 ~ 92 0
195 NGC 6887 AG? 20 17 17.3498163864 -52 47 47.934022416   12.77 11.76 11.40 12.3 ~ 65 0
196 NGC 6890 Sy2 20 18 18.1057797216 -44 48 24.750633168   13.06 14.02 11.57   ~ 171 0
197 NGC 6923 Sy2 20 31 39.0580970808 -30 49 54.787179180   12.80 12.09 11.48 12.1 ~ 96 0
198 NGC 6925 EmG 20 34 20.5702851864 -31 58 51.143730564   12.09 11.30 10.77 11.4 ~ 132 1
199 NGC 6951 Sy2 20 37 14.1228088488 +66 06 20.049916392   11.64 10.65     ~ 553 2
200 NGC 6984 Sy2 20 57 53.9873335608 -51 52 15.058670700   13.19 12.65 12.22   ~ 58 0
201 NGC 7038 EmG 21 15 07.4979442776 -47 13 13.674926604   12.69   11.26 12.0 ~ 66 0
202 IC 5092 GiG 21 16 14.5030302408 -64 27 52.583392836   12.78   11.54 11.9 ~ 48 0
203 NGC 7083 Sy2 21 35 44.6351403840 -63 54 10.199544624   11.93 11.04 10.81 11.5 ~ 188 0
204 NGC 7090 EmG 21 36 28.865 -54 33 26.35 12.35 11.60 11.05 10.82 11.2 ~ 183 0
205 NGC 7137 AG? 21 48 13.0542933936 +22 09 34.505402508   13.3       ~ 92 0
206 NGC 7125 EmG 21 49 15.945 -60 42 47.42   12.70 12.37 11.77   ~ 70 0
207 NGC 7126 Sy2 21 49 18.1342577688 -60 36 32.990119740   12.99 12.36 11.81   ~ 74 0
208 NGC 7177 LIN 22 00 41.250 +17 44 17.22   12.2       ~ 204 1
209 NGC 7171 Sy2 22 01 02.0124302736 -13 16 11.235583128   12.7   11.96 12.5 ~ 141 0
210 NGC 7184 AG? 22 02 39.8286792432 -20 48 45.720207216   11.98 11.20 10.62   ~ 147 0
211 NGC 7205 Sy2 22 08 34.3216157064 -57 26 33.586141884   11.77   10.63 11.1 ~ 123 0
212 IC 5179 Sy1 22 16 09.1191653256 -36 50 37.117603752   12.29 11.89 11.38   ~ 214 1
213 IC 5186 Sy2 22 18 46.531 -36 48 05.86   13.25 11.80 12.29   ~ 45 1
214 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1284 2
215 NGC 7339 G 22 37 46.890 +23 47 12.02   13.1       ~ 138 0
216 NGC 7329 GiG 22 40 24.2270495112 -66 28 44.236013736   12.51 11.31 11.07 11.7 ~ 111 0
217 NGC 7412 GiG 22 55 45.7654890264 -42 38 31.057726956   11.82 11.38 12.0 11.4 ~ 120 0
218 NGC 7448 AG? 23 00 03.589 +15 58 49.31   12.0       ~ 239 0
219 NGC 7479 Sy2 23 04 56.6432243448 +12 19 22.357387020 11.74 11.60 10.85 10.47 9.66 ~ 783 2
220 NGC 7496 Sy2 23 09 47.2876854912 -43 25 40.279652796   11.92 13.90 10.95 11.5 ~ 350 1
221 NGC 7537 GiP 23 14 34.5173585112 +04 29 54.054910824   13.8       ~ 220 0
222 NGC 7541 GiG 23 14 43.857 +04 32 02.04   12.7       ~ 333 1
223 NGC 7531 GiG 23 14 48.4576363992 -43 35 59.465701536   11.99 11.26 12.1 11.7 ~ 156 0
224 NGC 7590 Sy1 23 18 54.7949760192 -42 14 20.515300476   12.12 13.76 11.06 11.8 ~ 290 1
225 NGC 7606 EmG 23 19 04.7786629824 -08 29 06.331037820   11.5   10.47 11.1 ~ 197 0
226 NGC 7640 GiG 23 22 06.5746017072 +40 50 43.114729056   11.6       ~ 180 0
227 NGC 7673 EmG 23 27 41.060 +23 35 20.18 12.84 13.17 12.76     ~ 282 2
228 IC 5325 Sy2 23 28 43.4210245680 -41 19 59.690746920 11.80 11.89 11.27 10.73 11.5 ~ 111 1
229 NGC 7716 AG? 23 36 31.4564531712 +00 17 50.183061252   12.9   13.0 12.6 ~ 180 0
230 NGC 7723 Sy1 23 38 57.092 -12 57 39.68   11   10.78   ~ 199 0
231 NGC 7742 GiP 23 44 15.7534099368 +10 46 01.533226872   12.5       ~ 226 0
232 NGC 7755 EmG 23 47 51.7427496768 -30 31 19.174259172   12.10 11.36 11.11 11.7 ~ 140 1
233 NGC 7756 AG? 23 48 45.5521972728 +04 10 16.291113852   13.9       ~ 112 0
234 NGC 7782 LIN 23 53 53.8783976472 +07 58 14.183435064   13.2       ~ 121 0

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