Spectral Line Intensities for n = 3-3 EUV Transitions in Fe XV
Abstract
Transition rates and collision strengths between the fine-structure levels of Fe XV have been calculated using the configurations 3s2, 3s3p, 3p2, 3s3d, 3p3d, and 3d2and are compared here with other calculations. The present calculations were carried out using the Superstructure and distorted-wave programs developed at University College, London. Level populations and line intensity ratios are calculated for three temperatures with logTe(K) = 6.2, 6.4, and 6.6 and for electron densitiesNe= 108-1012cm-3. Calculated intensity ratios of the emission lines are compared with those observed by the Solar EUV Rocket Telescope and Spectrograph (SERTS) in an active region of sun. The present results should also be useful in analyzing observations from the Solar Heliospheric Observatory (SOHO).
- Publication:
-
Atomic Data and Nuclear Data Tables
- Pub Date:
- 1997
- DOI:
- 10.1006/adnd.1997.0743
- Bibcode:
- 1997ADNDT..66..119B