J/MNRAS/431/2703 Stark broadening of CaIII (Alonso-Medina+, 2013)
Ab initio calculations of Ca III Stark broadening parameters,
transition probabilities and radiative lifetimes.
Alonso-Medina A., Colon C.
<Mon. Not. R. Astron. Soc., 431, 2703-2715 (2013)>
=2013MNRAS.431.2703A 2013MNRAS.431.2703A
ADC_Keywords: Atomic physics
Keywords: atomic data - atomic processes
Abstract:
We have determined matrix elements for all experimental configurations
of CaIII, including the 3s3p63d configuration. These values have
been obtained using intermediate coupling (IC). For these IC
calculations, we have used the standard method of least-squares
fitting from the experimental energy levels, using the computer code
developed by Robert Cowan. In this paper, using these matrix elements,
we report the calculated values of the CaIII Stark widths and shifts
for 148 spectral lines, of 56 CaIII spectral line transition
probabilities and of eight radiative lifetimes of CaIII levels. The
Stark widths and shifts, calculated using the Griem semi-empirical
approach, correspond to the spectral lines of CaIII and are presented
for an electron density of 1017cm-3 and temperatures
T=1.0-10.0(x104K). The theoretical trends of the Stark broadening
parameter versus the temperature are presented for transitions that
are of astrophysical interest. There is good agreement between our
calculations, for transition probabilities and radiative lifetimes,
and the experimental values presented in the literature. We have not
been able to find any values for the Stark parameters in the
references.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 69 129 The CaIII 3s23p6-3s23p5ns (n=4,5) and
3s23p54p-3s23p5ns (n=4,5) data
table3.dat 69 276 The CaIII 3s23p53d-3s23p54p and
3s23p54s-3s23p54p data
table4.dat 69 72 The CaIII 3s23p6-3s23p53d and
3s23p54p-3s23p54d data
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See also:
J/A+AS/128/359 : Stark broadening of Ca IX and Ca X lines (Dimitrijevic+ 1998)
J/A+AS/140/191 : Stark broadening of Ca I (Dimitrijevic+, 1999)
Byte-by-byte Description of file: table2.dat table3.dat table4.dat
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Bytes Format Units Label Explanations
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1- 7 F7.2 0.1nm lambda [296/4083] Wavelength in Angstroms (1)
8 A1 --- n_lambda [*] unexplained note on lambda=2231Å
10- 34 A25 --- Conf Configuration of transition levels
37- 45 A9 --- Term Term of transition levels
47 I1 --- J1 [0/4] J value of upper level
48 A1 --- --- [-]
49 I1 --- J0 [0/4] J value of lower level
52- 55 F4.1 10+4K T [1/10] Temperature (2)
58- 62 F5.2 pm omega Stark linewidth ω (FWHM) (2)
64- 69 F6.2 pm d Stark shift (red if positive) (2)
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Note (1): Borgstroem (1971, Phys. Scr., 3, 157).
Note (2): normalized to electron density Ne=1017cm-3.
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 17-Jun-2014