Microlensing Theory and Galactic Astrophysics

俄亥俄州立大学：Andrew GouldTitle：微透镜理论与银河系天体物理研究。俄亥俄州立大学的安德鲁·古尔德将承担几个与微透镜相关的项目，因为它适用于银河系天体物理。这些项目包括调查微透镜视差中的简并度，以便能够适当解释所有微透镜视差测量，以及研究双微透镜事件的近双星和宽双星模型之间的简并度。此外，将开发新的代码，以允许对有限源效应进行详细建模，以便对高倍率事件提供适当的解释。另一个项目将涉及建立一个由10万颗晕星组成的新星表，以探测晕参数和子结构。对这一研究领域的研究生的培训将是这项工作的更广泛影响之一。

AST-0452758INSTITUTION: Ohio State UniversityPI: Andrew GouldTITLE: Microlensing Theory and Galactic Astrophysics ABSTRACTDr. Andrew Gould at Ohio State University will undertake several projects related to microlensing, as it applies to galactic astrophysics. Among the projects are investigations of degeneracies in the microlens parallax, in order to allow for proper interpretation of all microlensing parallax measurements, and studies of degeneracy between close-binary and wide-binary models of binary microlensing events. Additionally, new codes to allow for detailed modeling of finite-source effects will be developed, in order to provide for proper interpretation of high-magnification events. Another project will involve the construction of a new catalog of 100,000 halo stars, to probe halo parameters and substructure. Training of graduate students in this research area will be among the broader impacts of this work.