Spiral arms in stellar disks

被引：0
|
作者：
Grosbol, P [1 ]
Patsis, PA [1 ]
机构：
[1] European So Observ, D-8046 Garching, Germany
来源：
GALAXY DISKS AND DISK GALAXIES | 2001年 / 230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：
Deep K-band surface photometry of 12 spiral galaxies was used to analyze the spiral structure in their disks. Amplitude and shape of tile main two-armed spiral arms were determined. Further, synthetic rotation curves were derived using the radial distribution of the K surface photometry and kinematic data available for the galaxies. The radial extent of the main spiral patterns was compared to the locations of major resonances (e.g., ILR, 4:1, CR, OLR) suggested by the rotation curves. This was used to estimate possible values for the angular speed of tile spiral patterns.
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页码：149 / 150
页数：2
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