标题： 脉冲星 PSR B1929$+$10 全脉冲相位发射的辐射子脉冲调制和光谱特征 显示英文标题

标题： The radiative subpulse modulation and spectral features of PSR B1929$+$10 with the whole pulse phase emission

摘要： 在本研究中，我们利用五百米口径球面射电望远镜（FAST）观测了邻近的脉冲星PSR B1929+10。 我们首次发现了两个新的发射成分，其观测通量密度极其微弱，约为PSR B1929+10峰值射电发射强度的$10^{-4}$。 结果表明，PSR B1929+10的本征射电发射覆盖了$360^{\circ}$经度，表明该脉冲星是一个完整的$360^{\circ}$经度发射脉冲星。 我们在平均脉冲轮廓中发现至少15个脉冲发射成分。 此外，我们在不同的发射区域中识别出5种与脉冲成分不同的子脉冲调制模式。 此外，在该脉冲星的单次脉冲中还检测到了窄带发射特征和观测到的线性极化位置角（PPA）的频繁跳跃。 为了了解该脉冲星的磁层，我们分析了在整个$360^{\circ}$经度范围内观测到的PPA变化，并使用经典旋转矢量模型（RVM）对其进行了拟合。 对于最佳拟合模型，脉冲星的倾斜角，$\alpha$，以及撞击角，$\beta$，分别为$55^{\circ}.56$ 和 $53^{\circ}.47$。 使用磁偶极子场的旋转磁层近似，我们研究了三维脉冲星磁层以及极帽表面的放电模式。 我们的分析表明，与高空磁层区域相关的极帽的极窄区域是弱辐射窗口的原因。 这个脉冲星具有极高海拔的磁层无线电波发射。 显示英文摘要

摘要： In this work, we observe the nearby pulsar, PSR B1929$+$10, using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). We find, for the first time, two new emission components with an extremely weak observed flux density of about $10^{-4}$ of the magnitude of the peak radio emission of PSR B1929$+$10. Our results show that the intrinsic radio emission of PSR B1929$+$10 covers the $360^{\circ}$ of longitude, demonstrating that this pulsar is a whole $360^{\circ}$ of longitude emission pulsar. We find at least 15 components of pulse emission in the average pulse profile. Additionally, we identify 5 modes of subpulse modulation in different emission regions, which differ from the pulse components. Moreover, the narrowband emission feature and the frequent jumps in the observed linear polarization position angle (PPA) are also detected in the single pulse of this pulsar. To understand the magnetosphere of this pulsar, we analyze the observed PPA variations across the whole $360^{\circ}$ of longitude and fit them using the classical rotating vector model (RVM). For the best-fit model, the inclination angle,$\alpha$, and the impact angle, $\beta$, of this pulsar are $55^{\circ}.56$ and $53^{\circ}.47$, respectively. Using the rotating magnetosphere approximation of the magnetic dipole field, we investigate the three-dimensional pulsar magnetosphere and the sparking pattern on the polar cap surface. Our analysis indicates that the extremely narrow zone of the polar cap, which is associated with a high-altitude magnetospheric region, is responsible for the weak emission window. This pulsar has extremely high-altitude magnetospheric radio emissions.