Dielectronic recombination of lithium-like Ar15+

Schennach, S.; Müller, A.; Uwira, O.; Haselbauer, J.; Spies, W.; Frank, A.; Wagner, M.; Becker, R.; Kleinod, M.; Jennewein, E.; Angert, N.; Mokler, P. H.; Badnell, N. R.; Pindzola, M. S.

doi:10.1007/bf01426394

Cited by 43 publications

(23 citation statements)

References 18 publications

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“…The cooler electrons employed in this technique allowed resolution of resonances associated with ∆n = 0 and ∆n = 1 excitations and some resolution of fine structure components. This good agreement between theory and experiment was extended to Ar 15+ by Schennach et al (1994).…”

Section: Introductionmentioning

confidence: 85%

Dielectronic recombination data for dynamic finite-density plasmas

Colgan

Pindzola

Badnell

2004

A&A

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Section: Introductionmentioning

confidence: 85%

Dielectronic recombination data for dynamic finite-density plasmas

Colgan

Pindzola

Badnell

2004

A&A

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“…2 DR exist for a number of Li-like ions from Be + (Mohamed et al 2002) to Cu 26+ (Kilgus et al 1992). We also note the high-resolution, single-pass, merged-beams measurement for Ar 15+ of Schennach et al (1994). For Be-like ions measurements have been carried out for a number of systems from C 2+ (Fogle et al 2005) to Cu 25+ (M. Schnell et al 2006, in preparation; see also Schnell et al 2003).…”

Section: Introductionmentioning

confidence: 90%

“…Results have been published for Li-like Si 11+ (Kenntner et al 1995) and Cu 26+ (Kilgus et al 1992). Again, it is worth noting the work on Ar 15+ by Schennach et al (1994). For Be-like, O-like, and F-like ions, the only measurements we are aware of are, respectively, those for Mg 8+ (Schippers et al 2004), Fe 18+ (Savin et al 2002a), and F-like Se 25+ (even though this is above our Z ¼ 30 cutoff; Lampert et al 1996).…”

Section: Introductionmentioning

confidence: 94%

Dielectronic Recombination of FexxiiiForming Fexxii: Laboratory Measurements and Theoretical Calculations

Savin

Gwinner

Grieser

et al. 2006

ApJ

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We have measured resonance strengths and energies for dielectronic recombination (DR) of beryllium-like Fe xxiii forming boron-like Fe xxii via N ¼ 2 ! N 0 ¼ 2 and N ¼ 2 ! N 0 ¼ 3 core excitations. All measurements were carried out using the heavy-ion Test Storage Ring at the Max Planck Institute for Nuclear Physics (MPI-K) in Heidelberg, Germany. We have also calculated these resonance strengths and energies using three independent, perturbative, state-of-the-art theoretical techniques: the multiconfiguration Breit-Pauli (MCBP) method, the multiconfiguration Dirac-Fock (MCDF ) method, and the Flexible Atomic Code (FAC). Overall reasonable agreement is found between our experimental results and these theoretical calculations. We have used our measurements to produce a Maxwellian-averaged DR rate coefficient for Fe xxiii. Our experimentally derived rate coefficient is estimated to be accurate to better that %20%. At temperatures where Fe xxiii is predicted to form in both photoionized and electron-ionized gas, we find mixed agreement between our experimental rate coefficient and previously published rate coefficients. We find good agreement at these temperatures between the experimentally derived rate coefficient and our MCBP, MCDF, and FAC results.

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“…Thus, the precision and limited scope of these experiments left ambiguities. Effects of unknown external electric fields on DR were also invoked in the interpretation of results obtained in a second generation of merged-beam experiments on Li-like ions, C 31 and O 51 [12,13], N 41 , F 61 , and Si 111 [14], and Ar 151 [15]. By adjusting the field values (a bit) larger than estimated, agreement of DRF theory and the experiment could be obtained.…”

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confidence: 95%

Field Enhanced Dielectronic Recombination ofSi11+Ions

et al. 1997

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The enhancement of dielectronic recombination by applied electric fields has been observed and measured for the first time in a wide range of controlled and measurable fields using multiply charged ions. The heavy ion storage ring CRYRING at Stockholm University was used to store a beam of Si 111 and collide it with a cold electron target. Rydberg resonances up to n 25 are resolved for both the 2p 3͞2 and 2p 1͞2 series. The observation of a substantial monotonic increase of the rate coefficient for the group of higher Rydberg states is in puzzling disagreement with theoretical calculations of electric field enhanced dielectronic recombination.[S0031-9007(97)04040-4]

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Dielectronic recombination of lithium-like Ar15+

Cited by 43 publications

References 18 publications

Dielectronic recombination data for dynamic finite-density plasmas

Dielectronic recombination data for dynamic finite-density plasmas

Dielectronic Recombination of FexxiiiForming Fexxii: Laboratory Measurements and Theoretical Calculations

Field Enhanced Dielectronic Recombination ofSi11+Ions

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