EDP Sciences
Free access
Volume 389, Number 3, July III 2002
Page(s) 1086 - 1089
Section Atomic and molecular data
DOI http://dx.doi.org/10.1051/0004-6361:20020717

A&A 389, 1086-1089 (2002)
DOI: 10.1051/0004-6361:20020717

Experimental Stark widths and shifts of triply ionized sulfur spectral lines

S. Djenize1, 2, 3, A. Sreckovic1, 2, M. Jelisavcic1 and S. Bukvic1, 2

1  Faculty of Physics, University of Belgrade, 11001 Belgrade, PO Box 368, Serbia, Yugoslavia
2  Isaac Newton Institute of Chile, Yugoslavia Branch, Belgrade, Yugoslavia
3  Hungarian Academy of Sciences, Budapest, Hungary

(Received 11 February 2002 / Accepted 30 April 2002)

Stark widths and shifts of two prominent triply ionized sulfur (S IV) ultraviolet spectral lines (309.727 nm and 311.761 nm) in the $4{\rm s} ^2{\rm S}$- $4{\rm p} ^2{\rm P}^0$ transition have been measured in a linear, low-pressure, pulsed arc discharge created in a SF 6 plasma at 33 600 K electron temperature and at 2.8 $\times$ 10 23 m -3 electron density. Presented Stark shifts are the first measurement of the line shift in the S IV spectrum. Obtained broadening parameters have been compared to the available experimental and theoretical data. The transition probability ratio of the mentioned S IV spectral lines is also obtained.

Key words: lines: profiles -- atomic data

Offprint request: S. Djenize, steva@ff.bg.ac.yu

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