Abstract
The reduced white light emission often observed at the base of streamers
in coronagraphic or total solar eclipse images is commonly referred to
as a prominence cavity. Using multiwavelength eclipse observations, we
show that these cavities are invariably associated with very hot
material, often exceeding 2 million degrees. These empirical results
provide observational evidence for the early model studies of prominence
environments, which predicted the existence of these hot envelopes.
Their implications for the plasma properties of coronal mass ejections
associated with prominence eruptions will also be discussed.
| Original language | English |
|---|---|
| Pages | 3 |
| Publication status | Published - 01 Dec 2010 |