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

被引:16
作者
Beasley, MA [1 ]
Sharples, RM [1 ]
机构
[1] Univ Durham, Dept Phys, Durham DH1 3LE, England
关键词
galaxies : individual : NGC 55; galaxies : individual : NGC 253; galaxies : spiral; galaxies : star clusters;
D O I
10.1046/j.1365-8711.2000.03080.x
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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.
引用
收藏
页码:673 / 682
页数:10
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