在Cepheus E中C^(18)O(J=1-0)分子外流的不准直分布的研究

A STUDY OF THE NONCOLLIMATION OF C^（18）O (J=1-0)MOLECULAR OUTFLOWS IN CEPHEUS E

从在CepheusE中C18O（J＝1－0）的谱线频谱图发现，相对于峰速度的蓝移成分的积分流量密度明显大于相对于红移成分的积分流量密度．从在它的强度分布图也可以发现强度分布轮廓向西北和向东延伸．为此，研究了在CepheusE中C18O（J＝1－0）的速度分段积分等高图，发现相对于峰速度的蓝移速度分段积分等高图中的C18O（J＝1－0）的积分强度，要大于相对于红移速度分段积分等高图中的C18O（J＝1－0）的积分强度，同时强度分布图中的分子外流的不准直分布是由相对于峰速度的蓝移成分的分布的不准直性所引起的．

It is found from the spectral profile of C18O (J =1-0) emission in Cepheus E that the integrated flux density of the blue-shifted component relative to peak velocity is obviously larger than that of the red-shifted component It is also found from the integrated intensity map of C18O(J =1-0) emission in Cepheus E that the contour extends toward the northwest and the east. Therefore, the author studied the contour maps integrated over a 0.5 km / s velocity range from - 11.5 to - 9.0km / s. It may be seen from the contour maps that the integrated intensity of C18O (J = 1-0)emission in the contur maps of the blue-shifted components relative to the peak velocity is larger than that of the red-shifted components. Meanwhile, the noncollimation of molecular outflows in integrated intensity maps is caused by the noncollimation of the blue-shifted components relative to the peak velocity.