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

美国亚利桑那州大学杰伊·霍尔伯格（JayHolberg）本星系退化的星星群：校准一个巨大的新领域摘要全面研究本星系白色矮星群的计划将被证实，以解决有关单个白色矮星以及这些恒星的光谱子群的银河系起源（薄盘、厚盘或晕）的基本问题。这项研究还将提供有关白色矮星的热演化和化学演化的重要细节，并将本地白色矮星群与更大的更遥远的样本（如斯隆数字巡天中的白色矮星群）联系起来。这项研究的人口是2000至2500白矮星列入维拉诺瓦目录的光谱识别白色矮星。这些目标是通过使用最新的光度、光谱和自行数据来增加现有的关于主要是本地白色矮星的数据来实现的。这项建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色矮星目录和（亚利桑那州）白色矮星数据库，所有这些数据集都将驻留在其中。最后，将开展一个规模不大的观测方案，以深化和扩大已知白色矮星的现有光谱和光度数据，这将填补关键空白，并验证星表和数据库中所有恒星的分类。（通过这项工作观测到的和得出的参数）将通过互联网公开提供，并由多个学科的天文学家使用。（星系结构、形成、致密天体物理学等）。多名本科生将参与亚利桑那州和佛罗里达理工学院的工作。他们将参与数据库的设计，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.