Enabling Science at the Petascale: From Binary Systems and Stellar Core Collapse To Gamma-Ray Bursts

实现千万亿次科学：从双星系统和恒星核心塌陷到伽马射线爆发

• 批准号: 0941653
• 负责人: Peter Diener
• 金额: $ 3.59万
• 依托单位: Louisiana State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-15 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0941653&HistoricalAwards=false
• 关键词: Enabling; Science; Petascale; Binary; Systems

ABSTRACT/0941653This award provides travel funds to support technical coordination between the Blue Waters project team and a team of astrophysical researchers to explore the readiness of an astrophysics code for use on the Blue Waters system. If successful, it is anticipated that the code will be used to continue the research programs of the collaborators who are using codes in the Cactus framework to study (a) the dynamics of the collapse of a massive star and (b) the mergers of a pair of neutron stars and of a neutron star and black hole. The proposal hypothesizes that the former is a possible explanation of long-wave gamma-ray bursts and the latter may give rise to short-wave gamma-ray bursts. Planned work preparing the numerical simulation tool involves work on improving the physics of the astrophysics code and includes adding neutrino transport and interactions, radiation transport, the capability to handle ultra-relativistic flows, gamma-ray emission from relativistic plasmas, and afterglow photon emission.The project team contains a number of relatively recent Ph.D.s. It plans to make the codes developed publicly available. One post-doctoral researcher will be involved in the interaction between the project team and the Blue Waters team. At least one member of the project team is from an under-represented group.

摘要/0941653该奖项提供旅费，以支持蓝色沃茨项目组和天体物理研究人员团队之间的技术协调，以探索蓝色沃茨系统上使用的天体物理代码的准备情况。 如果成功，预计该代码将用于继续合作者的研究方案，这些合作者正在使用Cactus框架中的代码研究（a）大质量星星坍缩的动力学和（B）一对中子星和一颗中子星星与黑洞的合并。 该提案假设，前者是长波伽马射线爆发的一种可能解释，后者可能导致短波伽马射线爆发。 计划中的数值模拟工具的准备工作包括改进天体物理学代码的物理学，包括增加中微子传输和相互作用、辐射传输、处理超相对论流的能力、相对论等离子体的伽马射线发射和余辉光子发射。项目团队包括一些相对较新的博士。 它计划将制定的守则公之于众。 项目组与蓝色沃茨团队之间的互动将有一名博士后研究员参与。 项目团队中至少有一名成员来自代表性不足的群体。