Atomic data from the IRON Project. XXIII. Relativistic excitation rate coefficients for Fe XXII with inclusion of radiation damping

Details Atomic data from the IRON Project. XXIII. Relativistic excitation rate coefficients for Fe XXII with inclusion of radiation damping Atomic data from the IRON Project. XXIII. Relativistic excitation rate coefficients for Fe XXII with inclusion of radiation damping

Jun 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26as..123..575z&link_type=abstract

A & A Supplement series, Vol. 123, Jun II 1997, 575-580.

Astronomy and Astrophysics

Astronomy

17

Atomic Data, Sun: Flares, X-Rays: General

Scientific paper

New collision strengths have been calculated for 990 transitions among 45 fine structure n=2 and n=3 levels of Fe XXII. The relativistic Breit-Pauli formulation of the R-matrix method was employed in the close coupling approximation, with radiation damping of autoionizing resonances included for the first time in the calculations of excitation rate coefficients. It is found that, at low temperatures, the relativistic effects considerably enhance rate coefficients for the intercombination transitions, and the radiation damping effect reduces those for a few transitions. It is also found that resonances due to coupling with the n=3 levels significantly enhance rate coefficients for the transitions to low-lying levels at intermediate and high temperatures, and for the transitions to the n=2 high-lying levels at all temperatures. It is expected that the new data, tabulated at a wide range of temperatures, would lead to a revision of the spectral diagnostics of Fe XXII in laboratory and astrophysical sources, in particular the X-ray spectra observed from solar flares and tokamaks. Table 3, 4 and 5 for complete data for Fe XXII 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/Abstract.html

Affiliated with

Also associated with

No associations

Rating

Atomic data from the IRON Project. XXIII. Relativistic excitation rate coefficients for Fe XXII with inclusion of radiation damping 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 Atomic data from the IRON Project. XXIII. Relativistic excitation rate coefficients for Fe XXII with inclusion of radiation damping, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Atomic data from the IRON Project. XXIII. Relativistic excitation rate coefficients for Fe XXII with inclusion of radiation damping will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1472168