Globular clusters and planetary nebula kinematics in NGC 5128 (Cen A)

被引：0
|
作者：
Peng, EW [1 ]
Ford, HC
Freeman, KC
机构：
[1] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
[2] Australian Natl Univ, RSAA, Canberra, ACT, Australia
来源：
EXTRAGALACTIC STAR CLUSTERS | 2002年 / 207卷
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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.
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页码：312 / 314
页数：3
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