Extreme ultraviolet observations of the solar corona: first results from the coronal diagnostic spectrometer on SOHO
Abstract
We present first results from the Coronal Diagnostic Spectrometer (CDS) aboard the ESA/NASA Solar and Heliospheric Observatory (SOHO). CDS is a double spectrometer operating in the 151-785 A˚ range. This region of the solar spectrum is rich in emission lines from trace elements in the solar atmosphere, which can be used to derive diagnostic information on coronal and transition region plasma. Early spectra are presented and well identified lines are listed. In addition, examples of images in selected wavelength ranges are shown, for a prominence, a loop system and a bright point, demonstrating well the power of such extreme ultraviolet observations.
- Publication:
-
Advances in Space Research
- Pub Date:
- January 1997
- DOI:
- 10.1016/S0273-1177(97)01059-4
- Bibcode:
- 1997AdSpR..20.2239H