论文标题
PSR J1022+1001的单个脉冲研究
A single pulse study of PSR J1022+1001
论文作者
论文摘要
使用五百米的光圈球形射电望远镜（快速），我们记录了PSR J1022+1001的10^5个单脉冲。我们研究了极化特性，它们的能量分布和它们的到达时间。只有使用快速使用高灵敏度，这才有可能。没有迹象表明PSR〜J1022+1001表现出巨大的脉冲，无效或传统模式变化现象。综合轮廓的前导和尾随组件中的能量显示为相关。线性和圆极化的程度随脉冲通量密度的增加而增加。我们的数据表明，脉搏抖动会导致定时残差的过量噪声，当缩放到一个小时时，这与Liu等人一致。 （2015）。我们未能通过选择特定的单个脉冲来提高定时精度的各种方法。我们的工作表明，快速可以检测到观察到的脉冲星的单个脉冲，以检测和研究重力波。该功能可以详细研究影响脉冲星正时阵列灵敏度的噪声过程。
Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we have recorded 10^5 single pulses from PSR J1022+1001. We studied the polarization properties, their energy distribution and their times of arrival. This is only possible with the high sensitivity available using FAST. There is no indication that PSR~J1022+1001 exhibits giant pulse, nulling or traditional mode changing phenomena. The energy in the leading and trailing components of the integrated profile is shown to be correlated. The degree of both linear and circular polarization increases with the pulse flux density for individual pulses. Our data indicates that pulse jitter leads to an excess noise in the timing residuals of 67 ns when scaled to one hour, which is consistent with Liu et al. (2015). We have unsuccessfully trialled various methods to improve timing precision through the selection of specific single pulses. Our work demonstrates that FAST can detect individual pulses from pulsars that are observed in order to detect and study gravitational waves. This capability enables detailed studies, and parameterisation, of the noise processes that affect the sensitivity of a pulsar timing array.
