中文摘要：

利用美国甚长基线干涉阵对致密陡谱源1150＋497进行双波段全偏振观测，获得该源在5GHz和8GHz波段的偏振流量和偏振矢量分布结果，发现该源偏振主要集中在核心处，并通过对三个频率偏振角的拟合，首次获得了源1150＋497毫角秒尺度的旋转量约为66rad／m2．移去旋转量后，获得该源毫角秒尺度的内禀磁场分布，显示磁场矢量与喷流方向一致．

英文摘要：

Using the Very Long Baseline Array, the polarization observations for a com- pact steep spectrum source 1150＋497 have been made at two bands. Firstly, the intensity of polarization and distribution of P-vectors have been acquired. The results show that the polarization flux is mostly distributed in the core region. According to the fitting re- sult of polarization angle at three frequencies, the Faraday rotation measure of 66 rad/m2 is achieved for the first time. After removing the Faraday screen, the direction of the intrinsic magnetic field is consistent with the direction of the inner jet.