Parkes observations for project P971 semester 2022APRS_05

We propose further timing observations of the relativistic pulsar - white-dwarf binary, PSR J1141$-$6545. This unique system offers access to a wide range of physics, from relativistic phenomena through pulsar emission cone studies, to the structure and distribution of interstellar plasma along our line-of-sight. The analysis of existing data has already revealed the first detection of Lense-Thirring precession in a binary star system, and hinted at complex emission beam structure probed via geodetic precession. Further timing of this system for the next few years is needed for studies of these effects at higher precision.

我们提议对相对论性脉冲星-白矮星双星系统PSR J1141−6545开展进一步的计时观测。这个独特的系统为研究广泛的物理现象提供了窗口，涵盖相对论效应、脉冲星辐射锥研究，以及视线方向上星际等离子体的结构与分布。对现有数据的分析已首次在双星系统中探测到伦茨-瑟林进动（Lense-Thirring precession），并暗示通过测地进动（geodetic precession）可探究复杂的辐射束结构。为了更高精度地研究这些效应，未来数年需对该系统开展进一步的计时观测。