论文标题
阿根廷放射性研究所的小故障脉冲星监测计划的第一个结果
First results of the glitching pulsars monitoring program at the Argentine Institute of Radioastronomy
论文作者
论文摘要
我们在这里报告了始于2019年的阿根廷放射估算学院对南方小故障脉冲星进行系统监测的第一个结果。我们在Vela Pulsar（PSR J0835 $ -4510）和PSR J1048 $ 5832中发现了Vela Pulsar（PSR J0835 $ -4510）的主要小故障。对于每个故障，我们通过拟合定时残差来介绍小故障参数的测量。然后，我们在小故障之前和之后的观察结果中对Vela进行单独的脉冲研究。我们在7月22日在主要故障周围选择了6天的观察结果，并通过机器学习技术研究了它们的统计特性。我们使用脉冲的变分自动编码器（VAE）重建来清楚地将它们与噪声区分开。我们通过自组织图（SOM）聚类技术进行研究，以在小故障周围的日子里寻找簇的异常行为，找不到明显的质量变化。我们还发现并确认了PSR J0742 $ - $ 2822和PSR J1740 $ - $ 3015中的最近故障。
We report here on the first results of a systematic monitoring of southern glitching pulsars at the Argentine Institute of Radioastronomy that started in the year 2019. We detected a major glitch in the Vela pulsar (PSR J0835$-$4510) and two small-glitches in PSR J1048$-$5832. For each glitch, we present the measurement of glitch parameters by fitting timing residuals. We then make an individual pulses study of Vela in observations before and after the glitch. We selected 6 days of observations around the major glitch on 2021 July 22 and study their statistical properties with machine learning techniques. We use Variational AutoEncoder (VAE) reconstruction of the pulses to separate them clearly from the noise. We perform a study with Self-Organizing Maps (SOM) clustering techniques to search for unusual behavior of the clusters during the days around the glitch not finding notable qualitative changes. We have also detected and confirm recent glitches in PSR J0742$-$2822 and PSR J1740$-$3015.
