Rotation curves of luminous spiral galaxies
Rotation curves of luminous spiral galaxies
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发光螺旋星系的旋转曲线
DOI：
10.1002/asna.201111582
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
A. Pizzella
中科院分区：
文献类型：
--
作者：
I. Yegorova;A. Babić;P. Salucci;K. Spekkens;A. Pizzella
我们研究了局部宇宙中高光度螺旋星系的恒星光分布和旋转曲线。样品包含30条高质量的扩展H α和HI旋转曲线。这些天体的星盘尺度长度被测量或从文献中获取。我们发现，在这些大质量天体的恒星盘的最外层，旋转曲线与通用旋转曲线一致（Salucci et al. 2007），但样本的少数旋转曲线显示出分歧。
We have investigated the stellar light distribution and the rotation curves of high-luminosity spiral galaxies in the local Universe. The sample contains 30 high-quality extended H alpha and HI rotation curves. The stellar disk scale-length of these objects was measured or taken from the literature. We find that in the outermost parts of the stellar disks of these massive objects, the rotation curves agree with the Universal Rotation Curve (Salucci et al. 2007), however a few rotation curves of the sample show a divergence.