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. =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 3s^3^p^6^3d 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 10^17^cm^-3^ and temperatures T=1.0-10.0(x10^4^K). 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: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table2.dat 69 129 The CaIII 3s^2^3p^6^-3s^2^3p^5^ns (n=4,5) and 3s^2^3p^5^4p-3s^2^3p^5^ns (n=4,5) data table3.dat 69 276 The CaIII 3s^2^3p^5^3d-3s^2^3p^5^4p and 3s^2^3p^5^4s-3s^2^3p^5^4p data table4.dat 69 72 The CaIII 3s^2^3p^6^-3s^2^3p^5^3d and 3s^2^3p^5^4p-3s^2^3p^5^4d data -------------------------------------------------------------------------------- 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 -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 7 F7.2 0.1nm lambda [296/4083] Wavelength in Angstroms (1) 8 A1 --- n_lambda [*] unexplained note on lambda=2231{AA} 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 {omega} (FWHM) (2) 64- 69 F6.2 pm d Stark shift (red if positive) (2) -------------------------------------------------------------------------------- Note (1): Borgstroem (1971, Phys. Scr., 3, 157). Note (2): normalized to electron density N_e_=10^17^cm^-3^. -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Patricia Vannier [CDS] 17-Jun-2014