ALFALFA: The Arecibo Extragalactic HI Legacy Survey

位于波多黎各的305米射电望远镜的阿雷西博遗产快速阿尔法项目(“阿尔法”是一种新的七光束射电相机的名称：阿雷西博L波段馈电阵列)是一项正在进行的尖端测量，将绘制大约17%的整个天空的地图。在2010年完成后，将发现大约20,000个河外中性氢线源。这项调查是有史以来在可比较的天空区域进行的最深、最高分辨率的银河系外中性氢盲测。首席调查员和他的团队领导着这项调查，这项调查是以开放合作的方式组织的，以实现最大限度的科学回报和吸引最广泛的研究人员为原则。处女座星系团是调查区域的首要目标，这使得该项目可能更加有趣，因为很可能会发现重要的新结构。研究生参与项目的所有阶段，帮助规划和执行观测计划，开发数据处理和分析软件，制作公共数据产品，以及承担自己的科学项目。该小组将提供丰富和同质的数据集，使尽可能广泛的社区能够进行许多应用，并有助于与在其他波长进行的广域调查的协同作用。

The Arecibo Legacy Fast ALFA project, ("ALFA" is the name of a new seven-beam radio camera: the Arecibo L-band Feed Array) at the 305-m radio telescope in Puerto Rico is an ongoing cutting-edge survey which will map approximately 17% of the entire sky. Upon its completion in 2010, approximately 20,000 extragalactic neutral-hydrogen line sources will be found. This survey is the deepest, highest resolution blind extragalactic neutral hydrogen survey ever conducted over a comparable area of the sky. The Principal Investigator and his team lead the survey, which is organized as an open collaboration and based on principles of enabling maximal scientific return and engaging the broadest community of researchers. The Virgo Cluster is a top target in the survey area, which makes the project potentially even more interesting as it is likely that important new structures may be found. Graduate students are involved in all phases of the project, helping to plan and execute the observing program, developing software for data processing and analysis, and producing public data products, as well as undertaking their own science projects. The group will provide a rich and homogeneous dataset, which enables many applications by the broadest possible community ans is useful in synergy with wide area surveys conducted at other wavelengths.