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
相关论文
共 26 条
[1]  
ALCAINO G, 1984, APJ, V89, P6
[2]  
[Anonymous], STARS STELLAR SYSTEM
[3]   THE PROPERTIES OF THE DISK SYSTEM OF GLOBULAR-CLUSTERS [J].
ARMANDROFF, TE .
ASTRONOMICAL JOURNAL, 1989, 97 (02) :375-389
[4]  
BEARD SM, 1990, MON NOT R ASTRON SOC, V247, P311
[5]  
BICA E, 1986, ASTRON ASTROPHYS, V156, P261
[6]  
BLECHA A, 1986, A A, V154, P32
[7]   GLOBULAR-CLUSTERS IN THE SCULPTOR GROUP GALAXY NGC-55 [J].
DACOSTA, GS ;
GRAHAM, JA .
ASTROPHYSICAL JOURNAL, 1982, 261 (01) :70-+
[8]   SOUTHERN SKY REDSHIFT SURVEY - THE CATALOG [J].
DACOSTA, LN ;
PELLEGRINI, PS ;
DAVIS, M ;
MEIKSIN, A ;
SARGENT, WLW ;
TONRY, JL .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1991, 75 (04) :935-964
[9]   EXTRA-GALACTIC DISTANCE SCALE .4. DISTANCES OF NEAREST GROUPS AND FIELD GALAXIES FROM SECONDARY INDICATORS [J].
DEVAUCOULEURS, G .
ASTROPHYSICAL JOURNAL, 1978, 224 (03) :710-717
[10]   AN EXPANDING ASSOCIATION OF GALAXIES [J].
DEVAUCOULEURS, G .
ASTROPHYSICAL JOURNAL, 1959, 130 (03) :718-727