Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aj....128..712h&link_type=abstract
The Astronomical Journal, Volume 128, Issue 2, pp. 712-722.
Astronomy and Astrophysics
Astronomy
14
Galaxies: Individual: Ngc Number: Ngc 5128, Galaxies: Stellar Content, Galaxy: Globular Clusters: General
Scientific paper
To investigate the global properties of the globular cluster system (GCS) around NGC 5128, the central giant elliptical galaxy in the nearby Centaurus group, we have obtained deep CCD imaging for an area of almost 2 deg2 centered on the galaxy. Our data, in the CMT1 Washington photometric system, reach an approximate limiting magnitude of T1~=R~=22 and contain magnitudes, colors, and coordinates for more than 100,000 objects. Of these, the vast majority (about 99%) are either foreground stars or faint background galaxies; the old-halo globular clusters make up the remaining tiny fraction of the sample. Our database, however, provides the material for understanding the large-scale features of the GCS, including its metallicity distribution (MDF), luminosity distribution, and spatial structure.
Geisler Doug
Harris Gretchen L. H.
Harris William E.
Hesser James Edward
Hulme Scott C.
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