2006A&A...451..789B


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.15CEST11:46:24

2006A&A...451..789B - Astronomy and Astrophysics, volume 451, 789-796 (2006/6-1)

Large-scale study of the NGC1399 globular cluster system in Fornax.

BASSINO L.P., FAIFER F.R., FORTE J.C., DIRSCH B., RICHTLER T., GEISLER D. and SCHUBERTH Y.

Abstract (from CDS):

We present a Washington C and Kron-Cousins R photometric study of the globular cluster system of NGC1399, the central galaxy of the Fornax cluster. A large areal coverage of 1 square degree around NGC1399 is achieved with three adjoining fields of the MOSAICII Imager at the CTIO 4-m telescope. Working on such a large field, we can perform the first indicative determination of the total size of the NGC1399 globular cluster system. The estimated angular extent, measured from the NGC1399 centre and up to a limiting radius where the areal density of blue globular clusters falls to 30 per cent of the background level, is 45±5arcmin, which corresponds to 220-275kpc at the Fornax distance. The bimodal colour distribution of this globular cluster system, as well as the different radial distribution of blue and red clusters, up to these large distances from the parent galaxy, are confirmed. The azimuthal globular cluster distribution exhibits asymmetries that might be understood in terms of tidal stripping of globulars from NGC1387, a nearby galaxy. The good agreement between the areal density profile of blue clusters and a projected dark-matter NFW density profile is emphasized.

Abstract Copyright:

Journal keyword(s): galaxies: individual: NGC 1399 - galaxies: clusters: general - galaxies: elliptical and lenticular, cD - galaxies: star clusters - galaxies: photometry - galaxies: halos

Simbad objects: 12

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Number of rows : 12

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NGC 1387 GiP 03 36 57.0325944947 -35 30 23.691986124 12.18 11.75 10.69 10.16   ~ 220 1
2 NGC 1399 BiC 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1449 1
3 ACO S 373 ClG 03 38 30 -35 27.3           ~ 1538 0
4 NGC 1404 GiP 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 671 1
5 NGC 1427 GiG 03 42 19.4447168502 -35 23 33.193682690   11.89   10.44   ~ 251 0
6 NAME HYA SUPERCL SCG 08 57.9 +03 10           ~ 152 0
7 NGC 3311 BiC 10 36 42.821 -27 31 42.02   11.93 10.93 10.00 9.67 ~ 269 2
8 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 5825 0
9 M 49 Sy2 12 29 46.798 +08 00 01.48   13.21 12.17     ~ 1959 2
10 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6213 3
11 NGC 4636 LIN 12 42 49.867 +02 41 16.01   12.62 11.84     ~ 1041 1
12 M 60 GiP 12 43 40.008 +11 33 09.40   10.3       ~ 1251 0

    Equat.    Gal    SGal    Ecl

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2020.07.15-11:46:24

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