Geiss J, Gloeckler G, von Steiger R, Balsiger H, Fisk L A, Galvin A B, Ipavich F M, Livi S, McKenzie J F, Ogilvie K W
Physikalisches Institut, University of Bern, Switzerland.
Science. 1995 May 19;268(5213):1033-6. doi: 10.1126/science.7754380.
The high-speed solar wind streaming from the southern coronal hole was remarkably uniform and steady and was confined by a sharp boundary that extended to the corona and chromosphere. Charge state measurements indicate that the electron temperature in this coronal hole reached a maximum of about 1.5 million kelvin within 3 solar radii of the sun. This result, combined with the observed lack of depletion of heavy elements, suggests that an additional source of momentum is required to accelerate the polar wind.
从日冕南部孔洞流出的高速太阳风极为均匀且稳定，被一个延伸至日冕和色球层的清晰边界所限制。电荷态测量表明，这个日冕孔洞内的电子温度在距离太阳3个太阳半径范围内达到了约150万开尔文的最大值。这一结果，再加上观测到的重元素未出现耗尽的情况，表明需要额外的动量源来加速极风。
