The Effect of Environment of Mass and Light in Spiral Galaxies

这项研究调查了星系中亮物质和暗物质的比例与这些星系的环境之间的关系。光学光谱和21厘米谱线都将从空间中相对密集和稀疏区域的星系中获得。除了使用这样得到的自转曲线来研究这些天体的质量分布之外，测量的平均速度还将被用来研究相对较近的星系团系统的特殊运动。

This research investigates the relation between the proportion of luminous and dark matter in galaxies, and the environment of those galaxies. Both optical and 21 cm line spectra will be obtained from galaxies in both relatively dense and sparse regions of space. In additon to using the rotation curves thus obtained to study the mass distribution in these objects, the average velocity measured will be utilized to study peculiar motions of systems of relatively nearby clusters of galaxies.