Collaborative Research: Massive Surveys for Pulsars and Radio Transients Using the Arecibo L-band Feed Array

AST0507797亚利桑那州Jay Holberg大学局部简并恒星群：校准一个庞大的新领域综合研究局部白矮星群的计划，以解决关于单个白矮星的银河系起源(薄盘、厚盘或光晕)以及这些恒星的光谱亚群的基本问题。这项研究还将提供关于白矮星的热和化学演化的重要细节，并将当地的白矮星种群与更大、更遥远的样本联系起来，例如斯隆数字天空调查中的白矮星种群。这项研究的种群是在维拉诺瓦光谱鉴定白矮星目录中列出的2000到2500颗白矮星。这些目标是通过使用新获得的光度、光谱和自行数据来增强现有的数据来实现的，这些数据主要是局部白矮星。这项提议的一个基本方面是维护和升级现有的维拉诺瓦光谱识别白矮星星表和(亚利桑那州)白矮星数据库，所有这些数据集都将驻留在其中。最后，将实施一项适度的观测计划，以深化和扩展现有的已知白矮星的光谱和光度学数据，以填补关键空白，并验证目录和数据库中所有恒星的分类。数据库内容(包括观测数据和通过这项工作得出的参数)将通过互联网公开，供天文学家在几个学科(银河系结构、形成、致密天体物理等)使用。多名本科生将参与亚利桑那州和佛罗里达理工大学这项工作的各个方面。他们将参与数据库的设计、其人口和分析，并将有机会体验大型数据集的科学研究。

AST 0507797Jay HolbergUniversity of ArizonaThe Local Degenerate Star Population: Calibrating a Vast New DomainABSTRACTA program to comprehensively study the local white dwarf population will be undertakento address fundamental questions concerning the Galactic origin (thin disk, thick disk or halo) ofboth individual white dwarfs as well as the spectroscopic subpopulations of these stars. Thisstudy will also provide important details on the thermal and chemical evolution of white dwarfsand link the local white dwarf population with larger more distant samples such as the white dwarfpopulation in the Sloan Digital Sky Survey. The population for this study is the 2000 to 2500 whitedwarfs listed in the Villanova Catalog of Spectroscopically Identified White Dwarf. These goals areachieved through the use of newly available photometric, spectroscopic and proper motion datato augment existing data on this population of predominantly local white dwarfs. A fundamentalaspect of this proposal is the maintenance and upgrading of the existing Villanova Catalog ofSpectroscopically Identified White Dwarfs and the (Arizona) White Dwarf Database, in which all these datasets will reside. Finally, a modest observing program will be conducted to deepen and expandthe existing spectroscopic and photometric data for known white dwarfs that will fill key gaps as wellas validate the classifications for all stars in the catalog and database.The database contents (both observed and parameters derived through this work) willbe made publicly available via the internet and used by astronomers across several disciplines(Galactic structure, formation, compact object physics, etc.). Multiple undergraduate students willbe involved with aspects of the work at both Arizona and Florida Tech. They will participatein the design of the database, its population, and analysis and will have the opportunity to experiencescientific research with large data sets.