Relativistic allowed and forbidden transition probabilities for fluorine-like Fe XVIII

Jonauskas, V.; Keenan, F. P.; Foord, M. E.; Heeter, R. F.; Rose, S. J.; Hoof, P. A. M. van; Ferland, Gary J.; Aggarwal, K. M.; Kisielius, R.; Norrington, P. H.

doi:10.1051/0004-6361:20034340

Cited by 19 publications

(20 citation statements)

References 16 publications

(23 reference statements)

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“…This is in continuation of our work on generating atomic data (energy levels, radiative rates, collision strengths, and excitation rates) for iron ions, for which we have already reported our calculations for Fe ix , Fe x (Aggarwal & Keenan 2004b, 2005b, Fe xi (Aggarwal & Keenan 2003a,b), Fe xiii (Aggarwal & Keenan 2004a,b), Fe xv , Fe xvi , 2007, Fe xvii , Fe xviii (Jonauskas et al 2004), Fe xxi (Aggarwal & Keenan 1999, and Fe xxiv (McKeown et al 2004). In this paper we report similar results for transitions in Fe xxvi.…”

Section: Introductionsupporting

confidence: 68%

Radiative rates and electron impact excitation rates for H-like Fe XXVI

Aggarwal¹,

Hamada

Igarashi

et al. 2008

A&A

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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 Fe xxvi.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 reported for all the 300 transitions among the above 25 levels over a wide energy (temperature) range up to 1500 Ryd (10 7.7 K). Comparisons are made with earlier available results and the accuracy of the data is assessed.

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Section: Introductionsupporting

confidence: 68%

Radiative rates and electron impact excitation rates for H-like Fe XXVI

Aggarwal¹,

Hamada

Igarashi

et al. 2008

A&A

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“…This paper is a continuation of our work on generating atomic data (energy levels, radiative rates, collision strengths and excitation rates) for iron ions, for which we have already reported calculations for Fe X (Aggarwal & Keenan 2004b, 2005b, Fe XI (Aggarwal & Keenan 2003a,b), Fe XIII (Aggarwal & Keenan 2004a, 2005a, Fe XV , Fe XVII , Fe XVIII (Jonauskas et al 2004), Fe XXI (Aggarwal & Keenan 1999) and Fe XXIV (McKeown et al 2004). Here we report similar results for transitions in Fe XVI.…”

Section: Introductionmentioning

confidence: 91%

Electron impact excitation of Fe XVI: radiative and excitation rates

Aggarwal

Keenan

2006

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Aims. In this paper we report calculations for energy levels, radiative rates, collision strengths, and effective collision strengths for transitions in Fe XVI. Methods. For energy levels and radiative rates we have used the General purpose Relativistic Atomic Structure Package (grasp), and for the compuations of collision strengths the Dirac Atomic R-matrix Code (darc) has been adopted. Results. Energies for the lowest 39 levels among the n ≤ 7 ( ≤ 4) configurations of Fe XVI are reported. Additionally, 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 these levels. Electron impact excitation collision strengths have also been calculated for all 741 transitions among the above 39 levels over a wide energy range up to 220 Ryd. Resonances have been resolved in the threshold region, and effective collision strengths have been obtained over a wide temperature range up to 10 7 K. Comparisons are made with the available results in the literature, and the accuracy of the present results is assessed.

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“…This paper is a continuation of our work on generating atomic data (energy levels, radiative rates, collision strengths and excitation rates) for iron ions, for which we have already reported calculations for Fe X (Aggarwal & Keenan 2004b, 2005b, Fe XI (Aggarwal & Keenan 2003a,b), Fe XIII (Aggarwal & Keenan 2004a, 2005b, Fe XV , Fe XVI (Aggarwal & Keenan 2006a, b), Fe XVII , Fe XVIII (Jonauskas et al 2004), Fe XXI (Aggarwal & Keenan 1999) and Fe XXIV (McKeown et al 2004). Iron is an abundant element in solar and fusion plasmas, and its emission lines are observed over almost all ionization stages.…”

Section: Introductionmentioning

confidence: 91%

Energy levels and radiative rates for transitions in Fe IX

Aggarwal¹,

Keenan

Katō

et al. 2006

A&A

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Aims. In this paper we report calculations for energy levels and radiative rates for transitions in Fe IX. Methods. The General purpose Relativistic Atomic Structure Package (grasp) has been adopted for the calculation of energy levels and radiative rates. Results. Energies for the lowest 360 levels, including those from the (1s 2 2s 2 2p 6 ) 3s 2 3p 6 , 3s 2 3p 5 3d, 3s3p 6 3d, 3s 2 3p 4 3d 2 , and 3s 2 3p 5 4 configurations of Fe IX, are reported. Additionally, 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 these levels. Comparisons are made with the available results in the literature, and the accuracy of the present data is assessed. Finally, lifetimes for all excited levels are listed, and comparisons made with earlier available measurements and theoretical results.

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Relativistic allowed and forbidden transition probabilities for fluorine-like Fe XVIII

Cited by 19 publications

References 16 publications

Radiative rates and electron impact excitation rates for H-like Fe XXVI

Radiative rates and electron impact excitation rates for H-like Fe XXVI

Electron impact excitation of Fe XVI: radiative and excitation rates

Energy levels and radiative rates for transitions in Fe IX

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