Statistical analysis of EUV and UV lines inside and outside of solar coronal holes

被引：13

作者：

Dammasch, IE ^{[1
]}

Hassler, DM

Curdt, W

Wilhelm, K

机构：

[1] Max Planck Inst Aeron, D-37191 Katlenburg Lindau, Germany

[2] SW Res Inst, Boulder, CO 80302 USA

来源：

SPACE SCIENCE REVIEWS | 1999年 / 87卷 / 1-2期

关键词：

Solar Wind; Coronal Hole; Line Shift; Spatial Scan; Average Doppler Shift;

D O I：

10.1023/A:1005103224223

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Two studies performed with SUMER (the Solar Ultraviolet Measurements of Emitted Radiation spectrometer on SOHO) in September 1996 are presented. Spatial scans, a long exposure time and a broad spectral window provide reliable line profiles for various regions of the Sun (off-limb corona, coronal hole, quiet Sun, bright and dark regions on disk) and for different formation temperatures (Si II, 14 000 K; C IV, 100 000 K; Ne VIII, 630 000 K). Line intensity, position and width distributions are presented together with the line positions relative to the wavelength seen above the limb.

引用

页码：161 / 164

页数：4