The anomalous intensities of helium lines in a coronal hole
Observations made at the quiet Sun-centre with the Coronal Diagnostic Spectrometer (CDS) and Solar Ultraviolet Measurements of Emitted Radiation (SUMER) instruments on the Solar and Heliospheric Observatory (SOHO) have shown that the intensities of the resonance lines of He I and He II are significa...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2001
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