Large-scale study of the NGC 1399 globular cluster system in Fornax

We present a Washington C and Kron-Cousins R photometric study of the globular cluster system of NGC 1399, the central galaxy of the Fornax cluster. A large areal coverage of 1 square degree around NGC 1399 is achieved with three adjoining fields of the MOSAIC II Imager at the CTIO 4-m telescope, Wo...

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Detalles Bibliográficos
Autores principales: Bassino, Lilia Patricia, Faifer, Favio Raúl, Forte, Juan Carlos, Dirsch, B., Richtler, T., Geisler, D., Schuberth, Y.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2006
Materias:
Ciencias Astronómicas
Galaxies: clusters: general
Galaxies: elliptical and lenticular
Galaxies: halos
Galaxies: individual
Galaxies: photometry
Galaxies: star clusters
NGC 1399
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83499
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83499
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Galaxies: clusters: general
Galaxies: elliptical and lenticular
Galaxies: halos
Galaxies: individual
Galaxies: photometry
Galaxies: star clusters
NGC 1399
spellingShingle Ciencias Astronómicas
Galaxies: clusters: general
Galaxies: elliptical and lenticular
Galaxies: halos
Galaxies: individual
Galaxies: photometry
Galaxies: star clusters
NGC 1399
Bassino, Lilia Patricia
Faifer, Favio Raúl
Forte, Juan Carlos
Dirsch, B.
Richtler, T.
Geisler, D.
Schuberth, Y.
Large-scale study of the NGC 1399 globular cluster system in Fornax
topic_facet Ciencias Astronómicas
Galaxies: clusters: general
Galaxies: elliptical and lenticular
Galaxies: halos
Galaxies: individual
Galaxies: photometry
Galaxies: star clusters
NGC 1399
description We present a Washington C and Kron-Cousins R photometric study of the globular cluster system of NGC 1399, the central galaxy of the Fornax cluster. A large areal coverage of 1 square degree around NGC 1399 is achieved with three adjoining fields of the MOSAIC II 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 NGC 1399 globular cluster system. The estimated angular extent, measured from the NGC 1399 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 ± 5 arcmin, which corresponds to 220-275 kpc 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 NGC 1387, a nearby galaxy. The good agreement between the areal density profile of blue clusters and a projected dark-matter NFW density profile is emphasized.
format Articulo
Articulo
author Bassino, Lilia Patricia
Faifer, Favio Raúl
Forte, Juan Carlos
Dirsch, B.
Richtler, T.
Geisler, D.
Schuberth, Y.
author_facet Bassino, Lilia Patricia
Faifer, Favio Raúl
Forte, Juan Carlos
Dirsch, B.
Richtler, T.
Geisler, D.
Schuberth, Y.
author_sort Bassino, Lilia Patricia
title Large-scale study of the NGC 1399 globular cluster system in Fornax
title_short Large-scale study of the NGC 1399 globular cluster system in Fornax
title_full Large-scale study of the NGC 1399 globular cluster system in Fornax
title_fullStr Large-scale study of the NGC 1399 globular cluster system in Fornax
title_full_unstemmed Large-scale study of the NGC 1399 globular cluster system in Fornax
title_sort large-scale study of the ngc 1399 globular cluster system in fornax
publishDate 2006
url http://sedici.unlp.edu.ar/handle/10915/83499
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