High Time Resolution Study of the Pulsar Emission Region

蒂莫西H.汉金斯：许多恒星演化的最终状态是坍缩成高度致密的物体。这些天体经常以射电源的形式出现，发出非常频繁的短辐射脉冲，并被称为脉冲星。脉冲星提供了许多在实验室无法实现的极端物理条件的例子。在这个项目中，蒂莫西·汉金斯博士和合作者将通过脉冲星等离子体区域的相干无线电发射来研究它。研究小组将进行观测和理论研究相结合的研究，以确定无线电发射区域的条件，并测试该区域的现有理论模型。高时间分辨率的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理论。理论模型将预测等离子体动力学过程产生的特征时间特征，这些过程被认为发生在这些区域。新的仪器将提供给射电天文学界使用

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.***