2001AJ....122.1251K

Query : 2001AJ....122.1251K

2001AJ....122.1251K - Astron. J., 122, 1251-1270 (2001/September-0)

New insights from Hubble space telescope studies of globular cluster systems. II. Analysis of 29 S0 systems.

KUNDU A. and WHITMORE B.C.

Abstract (from CDS):

We examine the globular cluster systems (GCSs) of a sample of 34 S0 galaxies from a WFPC2 snapshot survey in the V and I bands. Of these 34 galaxies, 29 have measurable globular cluster systems. The mean color of the GCSs of individual galaxies vary from V-I=0.85 mag to V-I=1.17 mag. The average color of GCSs in all 29 S0 galaxies, V-I=1.00±0.07 mag, is similar to the value of V-I=1.04±0.04 derived for ellipticals in a companion paper. The mean metallicity of a cluster system is correlated to the luminosity (or mass) of the host galaxy, but it is not dependent on the Hubble type. Our measurements of the local specific frequency, on the other hand, confirm that the cluster formation efficiency is a function of Hubble type. The mean local specific frequency of our sample within the WFPC2 field of view is 1.0±0.6, lower than S_N(Local)_=2.4±1.8 derived for ellipticals in a similar analysis. Although we are able to confirm a bimodal color distribution in only one galaxy from the shallow ``snapshot'' images analyzed in this paper, statistical tests suggest that 10%-20% of S0s are bimodal at the present level of photometric accuracy. There are no significant trends in GCS properties with membership or location of the S0 host in a galaxy cluster. We have measured the turnover luminosity of the globular cluster luminosity function (GCLF) for the richest few GCSs and find the GCLF distances to be in agreement with other estimates. The globular clusters in S0 galaxies have average half-light radii of ~2.6 pc, which is similar to that of other galaxies, including our own.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Distances and Redshifts - Galaxies: Elliptical and Lenticular, cD - Galaxies: Formation - Galaxies: General - Galaxies: Star Clusters

CDS comments: Table 1 : U Ma NED3 = LGG 258

Simbad objects: 59

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Number of rows : 59
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 NAME M31 Group GrG 00 47 28.6 +40 17 23           ~ 65 0
2 NGC 404 LIN 01 09 27.02 +35 43 05.3   12.56 11.73     ~ 511 0
3 NGC 474 GiP 01 20 06.6870520512 +03 24 55.861973100 12.75 12.37 11.51 11.42 10.56 ~ 371 1
4 NAME NGC 488 Group GrG 01 21.5 +04 35   10.6       ~ 11 0
5 NAME NGC 524 Group GrG 01 24 01.6 +09 27 37   11.2       ~ 34 0
6 NGC 524 GiP 01 24 47.7429545736 +09 32 20.089023900   11.5       ~ 494 1
7 NGC 1201 EmG 03 04 07.9912913448 -26 04 10.874234136   11.78 10.64 10.35   ~ 152 0
8 NAME NGC 1255 Group GrG 03 11 40.9 -25 53 13           ~ 10 0
9 NGC 1255 GiG 03 13 31.9885639248 -25 43 30.399262428   11.80   10.66 11.5 ~ 156 0
10 IC 1919 GiG 03 26 02.2132576776 -32 53 40.323783768   13.78   12.60   ~ 86 0
11 NGC 1332 GiP 03 26 17.321 -21 20 07.33   11.45   9.84   ~ 378 0
12 NAME NGC 1400 Group GrG 03 32 16.00 -18 33 54.0           ~ 75 0
13 NGC 1375 GiG 03 35 16.8025873104 -35 15 56.371399740 13.50 13.02 12.40 11.74   ~ 175 1
14 NGC 1389 EmG 03 37 11.7427350576 -35 44 45.873195000 12.80 12.39 11.50 10.99   ~ 208 1
15 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
16 NAME Eridanus ClG GrG 03 38 32.00 -22 18 51.0           ~ 200 0
17 NGC 1400 EmG 03 39 30.851 -18 41 17.25 12.48 12.01 10.96 10.45   ~ 309 1
18 MCG-06-09-026 GiG 03 45 03.5753235792 -35 58 21.372259872   14.08   12.85   ~ 131 0
19 NGC 1553 GiP 04 16 10.4697802536 -55 46 48.072797400 10.76 10.10 9.40 8.74   ~ 395 2
20 NAME NGC 1566 Group GrG 04 20 00.6 -54 56 17           ~ 180 0
21 NGC 1581 GiG 04 24 44.9207289696 -54 56 31.345216980   13.36   12.24   ~ 59 0
22 ESO 118-34 GiG 04 40 17.485 -58 44 39.40   13.50 13.52 12.67 13.4 ~ 62 0
23 NAME NGC 1672 Group GrG 04 47 52.4 -59 41 54           ~ 8 0
24 NGC 2328 Sy1 07 02 36.193 -42 04 06.88   13.04   12.25 13.0 ~ 54 0
25 NAME NGC 2768 Group GrG 09 02 +59.9           ~ 6 0
26 NGC 2768 SyG 09 11 37.504 +60 02 13.95 11.30 10.84 9.87     ~ 526 2
27 LGG 174 GrG 09 29 44 -14 55.1           ~ 3 0
28 NGC 2902 EmG 09 30 52.8973999584 -14 44 08.596955256   13.1   12.03 12.4 ~ 69 0
29 NGC 3056 Sy2 09 54 32.8538928504 -28 17 53.628683496   12.61   11.00 12.0 ~ 75 0
30 NGC 3115 GiG 10 05 13.9270507008 -07 43 06.982712292   11   9.37   ~ 1067 2
31 NGC 3115B GiG 10 05 41.5916660712 -07 58 53.587291224   14.32 13.45     ~ 96 1
32 NGC 3156 GiG 10 12 41.2457368824 +03 07 45.701284764   12.8       ~ 241 0
33 NAME NGC 3166 Group GrG 10 13 34.08 +03 20 23.6   10.6       ~ 19 0
34 NAME M 96 Group GrG 10 46 45 +11 49.1           ~ 330 0
35 NGC 3414 GiC 10 51 16.2099174408 +27 58 30.297624852   12.1       ~ 353 0
36 LGG 227 GrG 10 56 36 +27 59.7           ~ 6 0
37 NGC 3489 GiG 11 00 18.5483994744 +13 54 04.206202668 11.46 11.12 10.29     ~ 429 1
38 NGC 3599 GiP 11 15 26.9494646448 +18 06 37.428503940   13.0       ~ 226 0
39 NGC 3607 Sy2 11 16 54.65687 +18 03 06.5120   13.84 12.76     ~ 490 1
40 NAME NGC 3607 Group GrG 11 17 55.9 +18 07 35   9.9       ~ 57 0
41 NGC 3870 H2G 11 45 56.634 +50 11 59.66   13.2       ~ 155 1
42 NAME UMa I N Cluster GrG 11 56 00 +49 52.5           ~ 15 0
43 NGC 4150 GiG 12 10 33.655 +30 24 05.35 12.72 12.44 11.64     ~ 331 2
44 NAME NGC 4168 Group GrG 12 12.0 +13 24           ~ 69 0
45 NGC 4203 LIN 12 15 05.0549203560 +33 11 50.383965120   12.98 11.99     ~ 514 2
46 Z 69-113 GiP 12 15 53.2793735184 +13 12 57.061927656   15.4       ~ 39 0
47 IC 3131 AG? 12 18 50.9006616648 +07 51 43.066744308   14.8       ~ 74 0
48 NAME Virgo W GrG 12 20.0 +05 48   6.3       ~ 89 0
49 NAME Coma I Group GrG 12 22 19.4 +29 53 47           ~ 112 0
50 NGC 4379 GiG 12 25 14.7458757864 +15 36 26.755074576 13.05 12.63 11.72     ~ 239 1
51 NGC 4431 GiP 12 27 27.3817521552 +12 17 25.041554808 14.17 13.74 12.89     ~ 171 2
52 NGC 4459 H2G 12 29 00.0329905416 +13 58 42.826603332   11.6       ~ 567 0
53 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
54 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
55 NAME CVn I Group GrG 12 32 48.3 +33 57 07           ~ 149 0
56 IC 3540 GiC 12 35 27.2277280584 +12 45 00.945699012   14.8       ~ 68 0
57 NGC 6703 AG? 18 47 18.8166660360 +45 33 02.274865812   12.29 11.34     ~ 225 0
58 NGC 6861 EmG 20 07 19.482 -48 22 12.94   12.01 11.10 10.43   ~ 211 0
59 NAME NGC 6868 Group GrG 20 09 39.6 -48 19 39           ~ 36 0

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