/ftp/cats/J_A+A/510/A79



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J/A+A/510/A79    Effective collision strengths for K II           (Tayal+, 2010)
The following files can be converted to FITS (extension .fit or fit.gz)
	levels.dat table2.dat table3.dat table4.dat
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Query from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/A+A/510/A79
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drwxr-xr-x 20 cats archive 4096 Jan 29 2012 [Up] drwxr-xr-x 2 cats archive 4096 Dec 15 2013 [TAR file] -rw-r--r-- 1 cats archive 499 May 3 2010 .message -r--r--r-- 1 cats archive 6756 May 3 2010 ReadMe -r--r--r-- 1 cats archive 911 Dec 11 2009 levels.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 16429 Dec 11 2009 table2.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 70434 Dec 11 2009 table3.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 30265 Dec 11 2009 table4.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : J/A+A/510/A79 Effective collision strengths for K II (Tayal+, 2010) ================================================================================ Electron impact excitation collision strength for transitions in K II. Tayal S.S., Zatsarinny O. <Astron. Astrophys. 510, A79 (2010)> =2010A&A...510A..79T ================================================================================ ADC_Keywords: Atomic physics Keywords: atomic data - atomic processes - line formation Abstract: Oscillator strengths and electron impact excitation collision strengths for transitions between the 43 fine-structure levels of the 3p^6^, 3p^5^ 4s, 3p^5^ 3d, 3p^5^ 4p, 3p^5^ 4d and 3p^5^ 5s configurations in KII are calculated. Thermally averaged collision strengths are presented as a function of electron temperature for application to astrophysical plasmas. Description: The B-spline Breit-Pauli R-matrix method is used to investigate the electron impact excitation of forbidden and allowed transitions in singly ionized potassium. The relativistic effects have been incorporated through mass, Darwin and spin-orbit one-body operators in the Breit-Pauli Hamiltonian in the scattering calculation, while in the calculation of oscillator strengths the one-body and two-body relativistic operators are included. Flexible non-orthogonal sets of spectroscopic and correlation radial functions are used to obtain accurate description of KII levels and to represent the scattering functions. The 43 fine-structure levels of the 3p^6^, 3p^5^ 4s, 3p^5^ 3d, 3p^5^ 4p, 3p^5^ 4d and 3p^5^ 5s configurations have been considered in both the radiative and scattering calculations.

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