Electron impact excitation of the Fe XIV EUV transitions |
P.J. Storey, H.E. Mason, P.R. Young |
Astronomy & Astrophysics Supplement Series, 2000, Vol.141, pp.285-296 |
We calculate the collision strengths and thermally averaged collision
strengths for electron excitation between the forty energetically lowest
levels of Fe. The scattering calculation is more complete than any
previous work on this ion and significant differences are found in the
excitation rates for many of the extreme ultra-violet (EUV) transitions,
compared to earlier work. A detailed comparison is made between predicted
line intensity ratios and those observed in solar coronal spectra which
shows that several outstanding discrepancies are resolved by the new atomic
data.