We report the emission variations in PSR J1047$-$6709 observed at 1369 MHz using the Parkes 64 m radio telescope. This pulsar shows two distinct emission states: a weak state and a bright emission state. We detected giant pulses (GPs) in the bright state for the first time. We found 75 GPs with pulse width ranging from 0.6 to 2.6 ms. The energy of GPs follows a power-law distribution with the index $\alpha=-3.26\pm0.22$. The peak flux density of the brightest GP is 19 Jy which is 110 times stronger than the mean pulse profile. The polarization properties of the average profile of GPs are similar to that of the pulses with energy less than 10 times average pulse energy in the bright state. This indicates that the emission mechanism is basically the same for them. Our results provide a new insight into the origin of the GPs in pulsars.

中文翻译：

---

检测 PSR J1047−6709 中的巨脉冲

我们报告了使用 Parkes 64 m 射电望远镜在 1369 MHz 观察到的 PSR J1047$-$6709 的发射变化。这颗脉冲星显示出两种不同的发射状态：弱发射状态和亮发射状态。我们首次在明亮状态下检测到巨脉冲 (GP)。我们发现了 75 个脉冲宽度从 0.6 到 2.6 ms 的 GP。GPs 的能量服从指数为 $\alpha=-3.26\pm0.22$ 的幂律分布。最亮的 GP 的峰值通量密度为 19 Jy，比平均脉冲轮廓强 110 倍。GPs 的平均轮廓的偏振特性与能量小于亮态平均脉冲能量 10 倍的脉冲的偏振特性相似。这表明它们的排放机制基本相同。我们的研究结果为了解脉冲星中 GP 的起源提供了新的见解。