Some statistical properties of Ellerman bombs
Some statistical properties of Ellerman bombs
复制标题
埃勒曼炸弹的一些统计特性
DOI：
10.1007/bf00152675
复制
发表时间：
1973
期刊：
影响因子：
2.8
通讯作者：
H. Leparskas
中科院分区：
文献类型：
--
作者：
J. Roy;H. Leparskas
178个Ellerman炸弹被识别和研究的两个活动中心，一个靠近盘中心和东翼附近的带内和带外Hα滤波图。通过1/4英寸带通滤波器拍摄的照片，偶尔可以达到0.3英寸的分辨率。在Hα-2的平均爆炸持续时间约为13分钟附近的磁盘中心和11分钟附近的边缘;这些时间略有增加，当我们观察到更接近Hα的核心。近肢体区域86%的炸弹和圆盘中心区域56%的炸弹都伴随着黑色物质的喷射;喷射物长度为3-30英寸。弹射长度似乎与炸弹尺寸乘以炸弹寿命成正比。
One hundred seventy-eight Ellerman bombs were identified and studied with on- and off-band Hα filtergrams of two active centers, one near disk center and the other near the east limb. The photographs, taken through a 1/4 Å bandpass filter, occasionally attained resolution as fine as 0.3″. The mean duration of bombs at Hα-2 Å was about 13 min near disk center and 11 min near the limb; these times increase slightly when we observe closer to the core of Hα. Eighty-six percent of the bombs in the near-limb region and 56% in the disk-center region were seen to be accompanied by ejections of dark material; the ejections were 3–30″ long. The ejection length appears to be proportional to the bomb size times the bomb lifetime.