The Nearby Universe with 2MASS

AST-0406906 Huchra尽管观测宇宙学取得了重大进展，但仍然存在几个重要的问题，可以通过对附近宇宙的新认识来回答。 这项研究将使用2微米全天巡天（2 MASS）测量重子和物质的局部分布。 主要目标是创建一个包含超过100，000个星系的红移和超过10，000个星系的速度无关距离的目录，这将是附近宇宙唯一完整的全天空地图。 请注意，在数十兆秒差距尺度上探测和测量暗物质的唯一已被证明的方法是测量星系特有的速度场。 这些数据将用于星系密度、类型和性质的各种研究，以及星系流场、非线性偏置和结构形成的研究。 重要的教育和公众宣传活动将包括研究生、本科生和高中生研究、公开讲座、双语（英语/西班牙语）互动网站以及迅速提供数据。

AST-0406906HuchraDespite major progress in observational cosmology, there remain several questions of significance that could be answered with a new look at the nearby Universe. This research will measure the local distributions of baryons and matter using the 2 Micron All-Sky Survey (2MASS). The primary goal is the creation of a catalog with redshifts for more than 100,000 galaxies and velocity-independent distances for more than 10,000 galaxies, which will be the only complete, all-sky map of the nearby Universe. Note that the only proven method for detecting and measuring dark matter on scales of tens of mega-parsecs is to measure the galaxy peculiar velocity field. These data will then be used for various studies of galaxy density, types and properties, and of the galaxy flow fields, non-linear biasing, and structure formation. Significant education and public outreach activities will include graduate, undergraduate, and high school student research, public talks, a bilingual (English/Spanish) interactive web site, and prompt availability of the data.