Spectroscopy of Globular Clusters in the Sculptor Group Galaxies NGC 253 and NGC 55

Details Spectroscopy of Globular Clusters in the Sculptor Group Galaxies NGC 253 and NGC 55 Spectroscopy of Globular Clusters in the Sculptor Group Galaxies NGC 253 and NGC 55

1999-09-14

arxiv.org/abs/astro-ph/9909230v1

Astronomy and Astrophysics

Astrophysics

11 pages, 9 postscript figures, accepted for publication in MNRAS

Scientific paper

10.1046/j.1365-8711.2000.03080.x

We have obtained spectra for 103 published globular cluster candidates in the Sculptor Group galaxies NGC 253 and NGC 55. On the basis of radial velocities and digitized plate images, 14 globular clusters are identified in NGC 253 and one probable globular cluster is identified in NGC 55. The majority of the objects in the sample appear to be background galaxies. We have obtained and analysed COSMOS plate scans of NGC 253 and NGC 55 and use these along with the spectroscopically identified clusters to define new samples of globular cluster candidates in the two galaxies which should have reduced contamination.

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