2006A&A...458...53S


C.D.S. - SIMBAD4 rel 1.7 - 2020.12.03CET17:00:37

2006A&A...458...53S - Astronomy and Astrophysics, volume 458, 53-67 (2006/10-4)

Globular cluster systems of six shell galaxies.

SIKKEMA G., PELETIER R.F., CARTER D., VALENTIJN E.A. and BALCELLS M.

Abstract (from CDS):

Shells in Elliptical Galaxies are faint, sharp-edged features, believed to provide evidence of a recent (∼0.5-2x109 years ago) merger event. We analyse the Globular Cluster (GC) systems of six shell elliptical galaxies, to examine the effects of mergers upon the GC formation history. We examine the colour distributions, and investigate differences between red and blue globular cluster populations. We present luminosity functions, spatial distributions and specific frequencies (S_ N_) at 50kpc radius for our sample. We present V and I magnitudes for cluster candidates measured with the HST Advanced Camera for Surveys (ACS). Galaxy background light is modelled and removed, and magnitudes are measured in 8pixel (0.4arcsec) diameter apertures. Background contamination is removed using counts from Hubble Deep Field South. We find that the colour distributions for NGC 3923 and NGC 5982 have a bimodal form typical of bright ellipticals, with peaks near V-I=0.92±0.04 and V-I=1.18±0.06. In NGC 7626, we find in addition a population of abnormally luminous clusters at MI=-12.5. In NGC 2865 we find an unusually blue population, which may also be young. In NGC 1344 and NGC 474 the red cluster population is marginally detected. The radial surface density profiles are more flattened than the galaxy light in the cores. As already known, in NGC 3923, which has a high S_ N_ of 5.6, the radial density distribution is more shallower than the diffuse galaxy light. The clusters in NGC 2865 and NGC 7626 provide evidence for formation of a population associated with a recent merger. In the other galaxies, the properties of the clusters are similar to those observed in other, non-shell, elliptical galaxies.

Abstract Copyright:

Journal keyword(s): galaxies: peculiar - galaxies: star clusters - galaxies: structure - galaxies: formation - galaxies: evolution

Simbad objects: 35

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Number of rows : 35

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 470 GiP 01 19 44.845 +03 24 35.90 12.63 12.53 11.78     ~ 248 1
2 NGC 474 GiP 01 20 06.696 +03 24 54.97 12.75 12.37 11.51 11.42 10.56 ~ 320 1
3 LGG 20 GrG 01 21 18.8 +03 31 51           ~ 5 0
4 NGC 1052 GiP 02 41 04.79851 -08 15 20.7517 11.84 11.41 10.47 10.71   ~ 1159 2
5 NGC 1316 GiP 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1217 1
6 NGC 1340 GiG 03 28 19.668 -31 04 05.45   11.20 10.32 9.70   ~ 199 1
7 NGC 1399 BiC 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1465 1
8 ACO S 373 ClG 03 38 30 -35 27.3           ~ 1574 0
9 NGC 1407 GiG 03 40 11.904 -18 34 49.36   10.64 9.67 9.13   ~ 532 1
10 NGC 1700 GiG 04 56 56.347 -04 51 56.64   12   11.14   ~ 332 1
11 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15066 1
12 NAME CMa Dwarf Galaxy G 07 12.6 -27 40     -0.1     ~ 191 1
13 NGC 2768 SyG 09 11 37.504 +60 02 13.95 11.30 10.84 9.87     ~ 469 2
14 NGC 2865 GiG 09 23 30.205 -23 09 41.37   12.39 11.43 11.06   ~ 228 0
15 NGC 3610 GiG 11 18 25.276 +58 47 10.49   11.4       ~ 285 0
16 LGG 255 GrG 11 50 46.9 -28 54 48           ~ 9 0
17 NGC 3923 GiG 11 51 01.783 -28 48 22.36 11.41 10.59 9.80 8.88   ~ 403 1
18 NGC 3921 IG 11 51 06.8746094191 +55 04 43.392337063   13.4 12.64     ~ 237 0
19 NGC 4038 GiP 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1281 1
20 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1566 0
21 NGC 4039 GiP 12 01 53.8 -18 53 06   11.08   9.77   ~ 1134 1
22 NGC 4340 GiP 12 23 35.2775321007 +16 43 20.446578725   12.4       ~ 261 0
23 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 1975 2
24 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6301 3
25 NGC 4564 GiG 12 36 26.994 +11 26 21.55 12.51 12.05 11.12     ~ 566 1
26 NGC 4636 LIN 12 42 49.867 +02 41 16.01   12.62 11.84     ~ 1047 1
27 M 60 GiP 12 43 40.008 +11 33 09.40   10.3       ~ 1261 0
28 NGC 5982 LIN 15 38 39.778 +59 21 21.21   12.4       ~ 279 0
29 LGG 402 GrG 15 39 26.2 +59 04 11           ~ 10 0
30 NAME SDG G 18 55 03.1 -30 28 42   4.5 3.6     ~ 1788 2
31 NGC 7252 IG 22 20 44.7751096408 -24 40 41.905677809 12.26 12.46 12.06 11.57   ~ 665 1
32 NAME HDF-S reg 22 32 56 -60 33.0           ~ 545 0
33 NGC 7332 GiP 22 37 24.522 +23 47 54.06   12.0       ~ 357 0
34 NAME NGC 7619 Group GrG 23 20 32.1 +08 22 26           ~ 44 0
35 NGC 7626 rG 23 20 42.524 +08 13 01.43   12.8       ~ 405 1

    Equat.    Gal    SGal    Ecl

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2020.12.03-17:00:37

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