2011A&A...525A..19C


Query : 2011A&A...525A..19C

2011A&A...525A..19C - Astronomy and Astrophysics, volume 525A, 19-19 (2011/1-1)

An optical/NIR survey of globular clusters in early-type galaxies. I. Introduction and data reduction procedures.

CHIES-SANTOS A.L., LARSEN S.S., WEHNER E.M., KUNTSCHNER H., STRADER J. and BRODIE J.P.

Abstract (from CDS):

The combination of optical and near-infrared (NIR) colours has the potential to break the age/metallicity degeneracy and offers a better metallicity sensitivity than optical colours alone. Previous tudies of extragalactic globular clusters (GCs) with this colour combination, however, have suffered from small samples or have been restricted to a few galaxies. We compile a homogeneous and representative sample of GC systems with multi-band photometry to be used in subsequent papers where ages and metallicity distributions will be studied. We acquired deep K-band images of 14 bright nearby early-type galaxies. The images were obtained with the LIRIS near-infrared spectrograph and imager at the William Herschel Telescope (WHT) and combined with optical ACS g and z images from the Hubble Space Telescope public archive. For the first time we present homogeneous GC photometry in this wavelength regime for a large sample of galaxies, 14. We achieved a limiting magnitude of K∼20-21. For the majority of the galaxies we detect about 70 GCs each. NGC4486 and NGC4649, the cluster-richest galaxies in the sample contain 301 and 167 GCs, respectively. We present tables containing coordinates, photometry and sizes of the GCs.

Abstract Copyright:

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: star clusters: general

VizieR on-line data: <Available at CDS (J/A+A/525/A19): table4.dat>

Nomenclature: Table 4: [CLW2011] NGC NNNN NNN N=1301.

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 24

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Number of rows : 24
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 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 3943 0
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12762 1
3 NGC 1316 GiP 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1403 1
4 NGC 3377 GiP 10 47 42.400 +13 59 08.30 11.55 11.24 10.38     ~ 783 1
5 NAME M96 Group GrG 10 48 +13.3           ~ 317 0
6 NGC 4278 LIN 12 20 06.8242 +29 16 50.722 11.54 11.09 10.16     ~ 951 2
7 [CLW2011] NGC 4278 59 GlC 12 20 07.721 +29 15 54.88           ~ 5 0
8 NAME Coma I Group GrG 12 22 19.4 +29 53 47           ~ 108 0
9 NGC 4365 GiG 12 24 28.228 +07 19 03.07   11.5       ~ 848 0
10 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1777 2
11 M 85 GiP 12 25 24.053 +18 11 27.89   10.2       ~ 653 0
12 M 86 GiG 12 26 11.814 +12 56 45.49 10.32 9.83 8.90   7.50 ~ 1089 1
13 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6697 0
14 M 49 Sy2 12 29 46.8 +08 00 01   13.21 12.17     ~ 2108 2
15 NGC 4473 GiG 12 29 48.878 +13 25 45.55 11.60 11.16 10.20     ~ 652 1
16 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7280 3
17 IRAS 12315+0758 GiG 12 34 03.029 +07 41 56.90   10.6       ~ 681 0
18 M 89 LIN 12 35 39.80733343 +12 33 22.8308657 11.29 10.73 9.75     ~ 1005 2
19 NGC 4570 GiG 12 36 53.3828233728 +07 14 47.697174852   11.8       ~ 335 0
20 M 59 GiG 12 42 02.2581375168 +11 38 48.909507756   11.0       ~ 701 0
21 M 60 GiP 12 43 39.9680 +11 33 09.696   10.3       ~ 1355 1
22 NGC 4660 GiP 12 44 31.9814021280 +11 11 25.739106972   12.1       ~ 422 0
23 NAME Centaurus A Sy2 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4522 3
24 NGC 5846 BiC 15 06 29.253 +01 36 20.29   11.9   9.74   ~ 860 2

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