Radiative rates and electron impact excitation rates for H-like Ar XVIII

Details Radiative rates and electron impact excitation rates for H-like Ar XVIII Radiative rates and electron impact excitation rates for H-like Ar XVIII

Aug 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008a%26a...487..383a&link_type=abstract

Astronomy and Astrophysics, Volume 487, Issue 1, 2008, pp.383-388

Astronomy and Astrophysics

Astrophysics

6

Atomic Data, Atomic Processes

Scientific paper

Aims: In this paper we report on calculations for energy levels, radiative rates, collision strengths, and effective collision strengths for transitions among the lowest 25 levels of the n ≤ 5 configurations of H-like Ar xviii. Methods: The general-purpose relativistic atomic structure package (grasp) and Dirac atomic R-matrix code (darc) are adopted for the calculations. Results: Radiative rates, oscillator strengths, and line strengths are reported for all electric dipole (E1), magnetic dipole (M1), electric quadrupole (E2), and magnetic quadrupole (M2) transitions among the 25 levels. Furthermore, collision strengths and effective collision strengths are listed for all 300 transitions among the above 25 levels over a wide energy (temperature) range up to 800 Ryd (107.4 K).
Tables 2-4 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/487/383

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