Compact Objects Viewed Through Turbulent Interstellar Plasma

Backer，DonaldUniversity of California，BerkeleyAST 98-20662 Dr.Backer将使用各种射电望远镜和仪器对SgrA*、蟹状星云和脉冲星进行研究。这些研究被高能等离子体天体物理学和利用星际介质中的扭曲作为探测天体性质的常见技术的主题统一起来。对银河系中心射电源SgrA*的研究将包括成像，研究其时间变异性的性质，以及在动力学研究中使用其本身的运动。对蟹状星云和脉冲星的研究依赖于对通过星际介质传播的脉冲星信号的解释，以研究诸如银河系部分区域的磁场结构结构以及脉冲星本身的内在属性等问题。

Backer, DonaldUniversity of California, BerkeleyAST 98-20662Dr. Backer will carry out studies of Sgr A* and the Crab nebula and pulsar using a variety of radio telescopes and instrumentation. The studies are unified by the theme of high energy plasma astrophysics and the common technique of using distortions in the interstellar medium as probes of the nature of the object. Studies of the radio source at the galactic center, Sgr A* will include imaging, investigations of the nature of its temporal variability, and the use of its proper motions in dynamical studies. Studies of the Crab nebula and pulsar rely on interpreting pulsar signals that propagate through the interstellar medium to study issues such as the structure of the magnetic field structure in parts of the Galaxy, and the intrinsic properties of the pulsars themselves.