论文标题
使用孔/脉冲星的北部山脉脉冲星的法拉第旋转度量
Faraday rotation measures of northern-hemisphere pulsars using CHIME/Pulsar
论文作者
论文摘要
使用加拿大氢强度映射实验（Chime）PULSAR后端系统运行第一年的调试数据，我们对孔检测到的北半球脉冲星的法拉第旋转量度（RM）进行了系统分析。我们提供55个新的RMS，并为25个脉冲星提供了改进的RM不确定性。 Chime在400-800 MHz之间的低观测频率和较大的带宽有助于我们的测量精度，而高节奏观察则提供了极高的信噪比共同补充数据。我们的结果代表了Pulsar RM人口普查的显着增加，特别是在北半球方面。这些新的RMS适用于位于银河平面至10 kpc的源，以及平面的高度高度约为16 kpc。对法拉第天空的这种改善的知识将有助于未来的银河大规模磁性结构和电离层建模。
Using commissioning data from the first year of operation of the Canadian Hydrogen Intensity Mapping Experiment's (CHIME) Pulsar backend system, we conduct a systematic analysis of the Faraday Rotation Measure (RM) of the northern hemisphere pulsars detected by CHIME. We present 55 new RMs as well as obtain improved RM uncertainties for 25 further pulsars. CHIME's low observing frequency and wide bandwidth between 400-800 MHz contribute to the precision of our measurements, whereas the high cadence observation provide extremely high signal-to-noise co-added data. Our results represent a significant increase of the pulsar RM census, particularly regarding the northern hemisphere. These new RMs are for sources that are located in the Galactic plane out to 10 kpc, as well as off the plane to a scale height of ~16 kpc. This improved knowledge of the Faraday sky will contribute to future Galactic large-scale magnetic structure and ionosphere modelling.
