论文标题

由于脉冲星加速而引起的定时残差模式

The Timing Residual Patterns Due to Pulsar Acceleration

论文作者

Xie, Yi, Wang, Li-Chun

论文摘要

正时残差的形式由于Pulsar旋转周期$ p $及其衍生$ \ dot {p} $的位置以及适当动作的衍生物$ \ dot {p} $的形式。但是,以前尚未报道由于脉冲星加速度错误引起的残留模式,而星系或球状簇(GC)中的脉冲星将不可避免地加速。在这项工作中模拟了PULSAR横向加速度和R $ \ rm {\ ddot {O}} $ mer延迟的耦合效果在这项工作中模拟。结果表明,由于残留物的振荡信封可以识别出效果所产生的残差。还表明,由于效果而导致的残留幅度通常相对较小,但是,对于在附近GC核心附近分布的脉冲星可能可以观察到。

The form of timing residuals due to errors in pulsar spin period $P$ and its derivative $\dot{P}$, in positions, as well as in proper motions, have been well presented for decades in the literature. However, the residual patterns due to errors in the pulsar acceleration have not been reported previously, while a pulsar in the galaxy or a globular cluster (GC) will be unavoidably accelerated. The coupling effect of the pulsar transverse acceleration and the R$\rm{\ddot{o}}$mer delay on timing residuals are simulated in this work. The results show that the residual due to the effect can be identified by the oscillation envelopes of the residuals. It is also shown that the amplitude of the residual due to the effect is usually relatively small, however, it may probably be observable for pulsars distributing in the vicinity of the core of a nearby GC.

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