Globular cluster systems in low-luminosity early-type galaxies near the Fornax Cluster centre

Details Globular cluster systems in low-luminosity early-type galaxies near the Fornax Cluster centre Globular cluster systems in low-luminosity early-type galaxies near the Fornax Cluster centre

2005-11-28

arxiv.org/abs/astro-ph/0511770v1

Mon.Not.Roy.Astron.Soc.367:156-168,2006

Astronomy and Astrophysics

Astrophysics

14 pages, 12 figures. Accepted for publication in MNRAS

Scientific paper

10.1111/j.1365-2966.2005.09919.x

We present a photometric study of the globular cluster systems of the Fornax cluster galaxies NGC 1374, NGC 1379, and NGC 1387. The data consists of images from the wide-field MOSAIC Imager of the CTIO 4-m telescope, obtained with Washington C and Kron-Cousins R filters. The images cover a field of 36 x 36 arcmin, corresponding to 200 x 200 kpc at the Fornax distance. Two of the galaxies, NGC 1374 and NGC 1379, are low-luminosity ellipticals while NGC 1387 is a low-luminosity lenticular. Their cluster systems are still embedded in the cluster system of NGC 1399. Therefore the use of a large field is crucial and some differences to previous work can be explained by this. The colour distributions of all globular cluster systems are bimodal. NGC 1387 presents a particularly distinct separation between red and blue clusters and an overproportionally large population of red clusters. The radial distribution is different for blue and red clusters, red clusters being more concentrated towards the respective galaxies. The different colour and radial distributions point to the existence of two globular cluster subpopulations in these galaxies. Specific frequencies are in the range S_N= 1.4-2.4, smaller than the typical values for elliptical galaxies. These galaxies might have suffered tidal stripping of blue globular clusters by NGC 1399.

Affiliated with

Also associated with

No associations

Rating

Globular cluster systems in low-luminosity early-type galaxies near the Fornax Cluster centre does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Globular cluster systems in low-luminosity early-type galaxies near the Fornax Cluster centre, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Globular cluster systems in low-luminosity early-type galaxies near the Fornax Cluster centre will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-25164