Science. 1965 Nov 12;150(3698):883-4. doi: 10.1126/science.150.3698.883.
A radio map of the Andromeda galaxy, M 31, made with the 400-foot (122 m) radio telescope at the University of Illinois has been extended northward to cover the full optical extent of the galaxy. Several condensations of radio emission appear along the major axis of the galaxy, and other radio features are resolved.
使用伊利诺伊大学 400 英尺（122 米）射电望远镜制作的仙女座星系（M31）射电图已向北扩展，覆盖了星系的全部光学范围。在星系的主旋臂上出现了几个无线电辐射凝结，其他的射电特征也被解析出来。
