摘要
给出1999年3月12日至6月8日,使用国家天文观测中心乌鲁木齐南山站25m射电望远镜在0.327GHZ,1.5GHZ,2.3GHZ,4.8GHZ和8.4GHZ频段,对脉冲星PSRB0329+54进行的多波段观测结果.PSRB0329+54的辐射呈幂律谱,并出现频谱转折现象,低频段谱指数为1.59,高频段为2.45,平均谱指数为1.72.五个频段上的平均脉冲轮廓的角宽度和二个弱成分峰值间的角宽度都随频率的增加而减小.
We present the results 0f observations of the pulsar PSR B0329+54 at 0.327, 1.5, 2.3,4.8 and 8.4 GHz during 1999 between 03-12 and 06ro8, using the 25-m radio telescope ofNAOC Urumqi Station. The spectrum shows a bend, the spectral index is 1.59 at the low frequency end, and 2.45 at the high frequency end. The angular width of the average pulse profile and the angular separation between two weak peaks both decrease with increasing frequency.
基金
国家自然科学基金!19773001
国家攀登计划资助
高等学校博士学科点专项科研基金