Benchmarking atomic data for astrophysics: Fe XII

Details Benchmarking atomic data for astrophysics: Fe XII Benchmarking atomic data for astrophysics: Fe XII

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005a%26a...433..731d&link_type=abstract

Astronomy and Astrophysics, Volume 433, Issue 2, April II 2005, pp.731-744

Astronomy and Astrophysics

Astrophysics

39

Atomic Data, Line: Identification

Scientific paper

We use recently calculated electron collisional data by [CITE] for ion{Fe}{xii} (n=3 configurations) to build a model ion to compare to spectroscopic observations of the solar corona and laboratory measurements. We review all the line identifications of the brightest lines, by comparing both wavelengths and line intensities. The presence of blends in different plasma conditions is highlighted. A large number of new energy levels and line identifications are proposed. In particular, we identify the electric quadrupole ^4P{5/2}^e-^4F{9/2}e transition with the bright coronal line observed at 592.6 Å, previously unidentified. This line, when observed with the 1242.0, 1349.5 UV forbidden lines, is a good density diagnostic over a large range of electron densities. We also indicate the best spectral lines to be used for density diagnostics or instrument calibration. From various combinations of lines we obtain electron densities that are significantly different from those published in the previous literature. Some examples are provided. The agreement between theory and experimental data in terms of wavelengths, line intensities and level lifetimes is excellent.
The full datasets of energies (Table 2) and radiative data (Table 3) are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/433/731

Affiliated with

Also associated with

No associations

Rating

Benchmarking atomic data for astrophysics: Fe XII does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Benchmarking atomic data for astrophysics: Fe XII, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Benchmarking atomic data for astrophysics: Fe XII will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1451972