Spectroscopy of globular cluster candidates in the Sculptor group galaxies NGC 253 and 55

Beasley, M. A.; Sharples, R. M.
Bibliographical reference

Monthly Notices of the Royal Astronomical Society, Volume 311, Issue 4, pp. 673-682.

Advertised on:
2
2000
Number of authors
2
IAC number of authors
0
Citations
19
Refereed citations
15
Description
We have obtained spectra for 103 published globular cluster candidates in the Sculptor group galaxies NGC 253 and 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 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.