1999A&A...345...59L

Query : 1999A&A...345...59L

1999A&A...345...59L - Astronomy and Astrophysics, volume 34559-72 (1999/5-1)

Young massive star clusters in nearby galaxies. I. Identification and general properties of the cluster systems.

LARSEN S.S. and RICHTLER T.

Abstract (from CDS):

Using ground-based UBVRIHα CCD photometry we have been carrying out a search for young massive star clusters (YMCs) in a sample consisting of 21 nearby spiral galaxies. We find a large variety concerning the richness of the cluster systems, with some galaxies containing no YMCs at all and others hosting very large numbers of YMCs. Examples of galaxies with poor cluster systems are NGC 300 and NGC 4395, while the richest cluster systems are found in the galaxies NGC 5236 (M 83), NGC 2997 and NGC 1313. The age distributions of clusters in these galaxies show no obvious peaks, indicating that massive clusters are formed as an ongoing process rather than in bursts. This is in contrast to what is observed in starbursts and merger galaxies. The radial distributions of clusters follow the Hα surface brightnesses. For the galaxies in our sample there is no correlation between the morphological type and the presence of YMCs.

Abstract Copyright: ∼

Journal keyword(s): galaxies: photometry - galaxies: spiral - galaxies: star clusters

Simbad objects: 42

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Number of rows : 42
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 45 Sy2 00 14 04.0072128696 -23 10 55.132646808 11.92 11.21 10.73 10.58 10.4 ~ 269 1
2 NGC 247 LSB 00 47 08.554 -20 45 37.44 10.11 9.61 9.10 8.87   ~ 480 2
3 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3588 2
4 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1614 2
5 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
6 M 74 G 01 36 41.7451236624 +15 47 01.107512304 10.52 10.00 9.46 9.16   ~ 1934 1
7 NGC 1097 LIN 02 46 19.059 -30 16 29.68 10.46 9.97 9.48 8.72 9.8 ~ 1448 3
8 NGC 1156 GiG 02 59 42.8528847264 +25 14 28.352017320 12.13 12.32 11.74     ~ 323 1
9 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
10 NGC 1313 AG? 03 18 16.046 -66 29 53.74   10.06 10.0 9.40 10.4 ~ 723 2
11 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
12 NGC 1493 Sy2 03 57 27.4270810416 -46 12 38.513195316   11.88   11.01 11.6 ~ 149 0
13 NGC 1569 rG 04 30 49.186 +64 50 52.52 11.72 11.86 11.03     ~ 1297 3
14 NGC 1705 Sy2 04 54 13.4661493464 -53 21 39.471592428 12.32 12.96 12.56 12.58 12.9 ~ 692 1
15 NGC 1866 GlC 05 13 38.920 -65 27 52.75           ~ 437 0
16 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
17 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2236 2
18 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1887 1
19 NGC 2835 EmG 09 17 52.8523921416 -22 21 16.839119700   11.03   10.32 10.9 ~ 285 0
20 NGC 2997 GiG 09 45 38.7542237472 -31 11 27.345810192   9.97 9.41 8.84 9.9 ~ 454 1
21 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
22 NGC 3180 GiG 10 18 16.985 +41 25 27.77   10.4       ~ 777 0
23 NGC 3621 Sy2 11 18 16.300 -32 48 45.36 10.10 9.44 9.56 8.07 10.1 ~ 661 3
24 NGC 3921 LIN 11 51 06.8803989360 +55 04 43.414457484   13.4 12.64     ~ 260 1
25 NGC 4038 EmG 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1364 1
26 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1749 0
27 NGC 4039 GiP 12 01 53.51 -18 53 10.3   11.08   9.77   ~ 1173 1
28 NGC 4228 SBG 12 15 39.174 +36 19 36.80 10.63 10.30 9.93 9.74   ~ 1017 1
29 NGC 4395 Sy2 12 25 48.8633109888 +33 32 48.700168152 10.84 10.54 10.11 9.98   ~ 1286 1
30 NGC 5204 LSB 13 29 36.508 +58 25 07.43   11.84   11.37   ~ 494 0
31 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2778 2
32 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
33 NGC 5585 GiG 14 19 48.204 +56 43 44.58   11.73 11.216 11.12 10.123 ~ 455 0
34 NGC 6744 GiG 19 09 46.1335950504 -63 51 26.897079024   9.28 8.25 8.08 9.6 ~ 303 0
35 ESO 338-4 EmG 19 27 58.338 -41 34 30.81   13.55 13.21 13.14 13.43 ~ 253 1
36 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2661 2
37 NGC 6951 Sy2 20 37 14.1228088488 +66 06 20.049916392   11.64 10.65     ~ 553 2
38 NGC 7252 AGN 22 20 44.7748209648 -24 40 41.909518200 12.26 12.46 12.06 11.57   ~ 720 1
39 NGC 7424 EmG 22 57 18.3924511080 -41 04 14.124670032   10.88 10.38 10.02 10.9 ~ 236 0
40 NGC 7741 GiP 23 43 54.375 +26 04 32.07 11.70 11.84 11.31     ~ 303 1
41 NGC 7793 GiG 23 57 49.7540045856 -32 35 27.701550744 10.26 9.74 9.28 9.06 9.7 ~ 1188 2
42 NAME Local Group GrG ~ ~           ~ 9325 0

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