Gas minor-axis velocity gradients in early-type spiral galaxies

被引：0
|
作者：
Corsini, EM [1 ]
Pizzella, A [1 ]
Coccato, L [1 ]
Bertola, F [1 ]
机构：
[1] Univ Padua, Dipartimento Astron, I-35122 Padua, Italy
来源：
MASS OF GALAXIES AT LOW AND HIGH REDSHIFT | 2003年
关键词：
D O I：
10.1007/10899892_51
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We measured a remarkable gas velocity gradient along the minor axis of 5 early-type spiral galaxies. This phenomenon suggests the presence of a kinematically-decoupled component in orthogonal rotation with respect to the galaxy disk. If this is the case a second event has taken place in the history of the galaxy. Alternatively the gas velocity gradient is the result of non-circular motions induced by the potential of a triaxial bulge or of a bar.
引用
收藏
页码：211 / 212
页数：2
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