论文标题
搜索具有相特征的脉冲星
Searching for pulsars with phase characteristics
论文作者
论文摘要
我们通过使用无线电观察数据的相特征进行脉冲星搜索和候选识别来提出一种方法。相特征是脉冲星信号与频域中的相位校正之间的关系，我们将其视为一种新的搜索诊断特征。根据相位特征，提出了一种搜索方法：计算DM（分散度量） - 选择候选频率的频率数据，然后通过使用PULSAR信号的宽带特征来确认候选者。基于这种方法，我们对M15和M71的简短观察数据进行了搜索测试，这是通过五百米的孔径球形射电望远镜（FAST）观察到的，以及某些银河平面Pulsar Snapshot Shopshot Survey（GPPS）数据。结果表明，在处理速度更快的同时，它可以获得与Presto（Pulsar探索和搜索工具包）相似的搜索结果。
We present a method by using the phase characteristics of radio observation data for pulsar search and candidate identification. The phase characteristics are relations between the pulsar signal and the phase correction in the frequency-domain, and we regard it as a new search diagnostic characteristic. Based on the phase characteristics, a search method is presented: calculating DM (dispersion measure) -- frequency data to select candidate frequencies, and then confirming of candidates by using the broadband characteristics of pulsar signals. Based on this method, we performed a search test on short observation data of M15 and M71, which were observed by Five-hundred-meter Aperture spherical radio Telescope (FAST), and some of the Galactic Plane Pulsar Snapshot survey (GPPS) data. Results show that it can get similar search results to PRESTO (PulsaR Exploration and Search TOolkit) while having a faster processing speed.
