Electron density in coronal jets
Abstract
Coronal jets are observed by the SOHO/LASCO C2 and C3 coronagraphs as thin, highly collimated structures. The determination of their electron density cannot be performed with the standard inversion of pB images because of the inherent assumption of global spherical or axial symmetry of the corona which is totally inappropriate in the case of local structures. Our analysis first isolates the jets by subtracting the background corona. Their radiance is then compared to calculated models which assume a tube like structure. This allows to derive the true radial profile of their electron density.
- Publication:
-
From Solar Min to Max: Half a Solar Cycle with SOHO
- Pub Date:
- June 2002
- Bibcode:
- 2002ESASP.508..379B
- Keywords:
-
- Sun;
- Coronal Jets