RUI: Local Supercluster Studies

这项研究将是对处女座研究的继续 星系团、其本星系团和相关星系 系统. 拟议的工作主要是观察性的，使用 阿雷西博望远镜观察21厘米光谱线的 中性氢（HI）研究气体含量和内部 室女座矮星系的动力学，在后面的低密度区域 室女座和朝向超星系团极点， 超星系团中的星系 全球HI属性 将允许我们对这些星系 N体模拟的观测结果， 关于大规模隔离的问题，最近的偏见理论， 星系的形成，以及形态学的各种机制 隔离和HI缺陷。 新的HI数据，沿着数据 从其他来源，将扩大塔利-费舍尔相关性 蓝色亮度和HI轮廓宽度之间的关系 非常小的矮星系的光谱线 构成了大多数星系群的主体。 本科生将直接参与研究。

The research will be a continuation of studies of the Virgo Cluster of galaxies, its local supercluster, and related galaxy systems. The proposed work is largely observational, using the Arecibo telescope to observe the 21 centimeter spectral line of neutral hydrogen (HI) to study the gas content and internal dynamics of dwarf galaxies in Virgo, in low density regions behind Virgo and toward the supercluster pole, and around groups of galaxies within the local supercluster. The global HI properties of these galaxies will allow a critical comparison of these observations with N-body simulations which should resolve questions concerning mass segregation, recent theories of biased galaxy formation, and various mechanisms of morphological segregation and HI deficiencies. The new HI data, along with data from other sources, will extend the Tully-Fisher correlation between the blue color magnitude (luminosity) and HI profile width of the spectral line to the quite small dwarf galaxies which constitute the dominant population of most galaxy groups. Undergraduate students will be directly involved in the research.