论文标题
PSR B1534+12的两个发射状态
The two emission states of PSR B1534+12
论文作者
论文摘要
我们使用五百米的光圈球形射电望远镜（快速）观察到了带有中子星伴侣的脉冲星的PSR〜B1534+12（J1537+1155）。我们发现该脉冲星显示了两个不同的发射状态：一个具有宽脉冲曲线的弱状态和具有窄脉冲轮廓的突发状态。弱国总是存在。我们无法使用当前数据来确定弱状态的脉搏能是否遵循正常或对数正态分布。爆发状态能量分布遵循幂律。爆发状态中单个脉冲发射的幅度差异很大。最亮脉冲的峰值强度比平均脉冲强的334倍。我们还仅使用明亮的脉冲来检查了可以实现的时序精度，由于脉冲抖动，该脉冲没有显示出明显的改进，因此对此脉冲星的抖动噪声水平进行了量化。
We have observed PSR~B1534+12 (J1537+1155), a pulsar with a neutron star companion, using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). We found that this pulsar shows two distinct emission states: a weak state with a wide pulse profile and a burst state with a narrow pulse profile. The weak state is always present. We cannot, with our current data, determine whether the pulse energy of the weak state follows a normal or a log-normal distribution. The burst state energy distribution follows a power-law. The amplitude of the single pulse emission in the burst state varies significantly; the peak flux intensity of the brightest pulse is 334 times stronger than that of the average pulse. We also examined the timing precision achievable using only bright pulses, which showed no demonstrable improvement because of pulse jitter and therefore quantified the jitter noise level for this pulsar.
