Neutron Stars: Searches, Planets, Kinematics and Calibrators of Interstellar Seeing

本研究是基于使用阿雷西博和绿色银行无线电设施对卫星进行的长期搜索。 周期短于1.5毫秒的类星体的发现对核物质的状态方程和转动能的损失机制提出了重要的限制。 在几个平行的努力之一中，射电天体测量将在甚大阵列进行，以确定超新星过程中赋予中子星的速度反冲。 这样得到的速度分布可以提供有用的信息的对称性和能量的超新星爆炸，这是标准的距离指标用于宇宙学研究。 将进行第三个主要项目，以便利用无线电闪烁作为探测器，确定星际介质中电离气体的分布和脉冲星磁层的结构。 预计这些项目将产生关于中子星的人口特征的有用信息，并确定某些中子星周围的其他行星候选者。

ABSTRACTAST-9819931Cordes, JamesThis research is based upon a long-term search for pulsars using the Arecibo and Green Bank radio facilities. The discovery of pulsars with periods shorter than about 1.5 ms sets important constraints on the equation of state for nuclear matter and the mechanism by which rotational energy is lost. In one of several parallel efforts, radio astrometry will be conducted at the Very Large Array to determine the velocity kicks imparted to neutron stars during the supernova process. The velocity distribution so derived may provide useful information on the symmetry and energy of supernova explosions, which are standard distance indicators used in cosmological studies. A third major project will be conducted, in order to determine the distribution of ionized gas in the interstellar medium and the structure of pulsar magnetospheres using radio scintillation as a probe. These projects are expected to yield useful information on the population characteristics of neutron stars, and to identify additional planetary candidates around certain pulsars.