First observations of coronal hole structure and evolution using SOHO-CDS

被引：5

作者：

Insley, JE

Moore, V

Harrison, RA

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Space & Atmospher Phys Grp, London SW7 2BZ, England

[2] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

来源：

SOLAR PHYSICS | 1997年 / 175卷 / 02期

关键词：

D O I：

10.1023/A:1004930219222

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on initial observations of coronal hole structure and evolution by the Coronal Diagnostic Spectrometer (CDS) instrument on board the Solar and Heliospheric Observatory (SOHO). The data show that there is coronal activity on time scales of tens of minutes, manifested as brightenings at chromospheric network cell junctions in extreme ultraviolet (EUV) wavelengths. There are also significant differences in structure seen in different wavelengths in coronal holes. Finally, we show coronal hole EUV spectra and compare them to quiet-Sun spectra, also taken by CDS.

引用

页码：437 / 456

页数：20

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