High Time Resolution Study of the Pulsar Emission Region

脉冲星发射区域的高时间分辨率研究

• 批准号: 0139641
• 负责人: Timothy Hankins
• 金额: $ 35.86万
• 依托单位: New Mexico Institute of Mining and Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-10-01 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0139641&HistoricalAwards=false
• 关键词: Time; Resolution; Study; Pulsar; Emission

AST 0139641PI: Timothy H. HankinsThe end state of stellar evolution for many stars is collapse into a highly compact object. These objects often appear as radio sources emitting very frequent short radiation pulses and have become known as pulsars. Pulsars offer many examples of extreme physical conditions that cannot be realized in the laboratory. In this project, Dr. Timothy Hankins and collaborators will study the pulsar plasma region via its coherent radio emission. The research team will carry out a combination of observational and theoretical studies in order to determine conditions in the radio emission region and to test current theoretical models of that region. High time resolution observations with a new data acquisition system capable of time resolution as short as one nanosecond will be used directly to confront and test the theory. The theoretical modeling will predict the characteristic time signatures arising from plasma dynamical processes that are believed to occur in such regions. The new instrumentation will be made available to the radio astronomy community.***

AST 0139641 PI：Timothy H.对于许多恒星来说，恒星演化的最终状态是坍缩成一个高度紧凑的物体。这些天体通常以射电源的形式出现，发射出频率非常高的短辐射脉冲，因此被称为射电星。 脉冲星提供了许多在实验室中无法实现的极端物理条件的例子。 在这个项目中，Timothy Hankins博士和合作者将通过其相干无线电发射研究脉冲星等离子体区域。该研究小组将进行观测和理论研究相结合的工作，以确定无线电发射区的条件，并测试该地区目前的理论模型。高时间分辨率观测与一个新的数据采集系统能够时间分辨率短至一纳秒将直接用于对抗和测试的理论。理论模型将预测的特征时间签名所产生的等离子体动力学过程，被认为是发生在这样的地区。新仪器将提供给射电天文学界。