Dirac R-matrix calculation for electron-impact excitation of S xiii

Author： Li F.   Liang G. Y.   Bari M. A.   Zhao G.  

Publisher： Edp Sciences

E-ISSN： 1432-0746|556|issue|A32-A32

ISSN： 0004-6361

Source： Astronomy & Astrophysics, Vol.556, Iss.issue, 2013-07, pp. : A32-A32

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract

Context. Sulfur emission lines in the soft X-ray and extreme-ultraviolet regions are observed in a variety of laboratory and astrophysical spectra. But accurate electron impact excitation data for S xiii for state-of-the-art NLTE spectral models are scarce.

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