[2] Australian Natl Univ, RSAA, Canberra, ACT, Australia
来源:
EXTRAGALACTIC STAR CLUSTERS
|
2002年
/
207卷
关键词:
D O I:
暂无
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
We have conducted a wide-field optical survey of NGC 5128 (Cen A), the nearest large elliptical galaxy (3.5 Mpc). From UBVRI imaging and spectroscopic follow-up, we have identified and obtained kinematics for 125 new globular clusters out to a projected radius of 40 kpc. We also extend our survey of field star kinematics in NGC 5128, and now possess a total of 736 radial velocities for planetary nebulae out to a projected radius of 80 kpc. . The PNe sample along the photometric major axis shows significant rotational support out to 80 kpc. . The blue globular clusters seem to possess little or no angular momentum. . The kinematics of the red globular cluster sample show some evidence for rotation around an axis common to that of the field stars.