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Kr II transition probability measurements for the UV spectral region

AutorBelmonte, M. T.; Gavanski, L.; Peláez, Ramón J. ; Aparicio, J. A.; Djurović , S.; Mar, S.
Palabras clavePlasmas
Techniques: spectroscopic
Line: profiles
Fecha de publicación15-dic-2015
EditorBlackwell Publishing
CitaciónMonthly Notices of the Royal Astronomical Society 456: 518-524 (2016)
ResumenThe determination of radiative transition probabilities or oscillator strengths is of common interest in astrophysics. The analysis of the high-resolution stellar spectra is now available in order to estimate the stellar abundances. In this paper, 93 experimentally obtained transition probability values (A) for singly ionized krypton spectral lines belonging to the ultraviolet (UV) wavelength region (208-360) nm are presented. These data, expressed in absolute units, were derived from the measurements of relative spectral line intensities and the values of transition probability data taken from the literature. The results obtained extend considerably the transition probability data base. As a light source, a plasma from a low-pressure pulsed arc was used. Its electron density was in the range of (1.5-3.4) × 10 m, while the temperature was between 28 000 and 35 000 K. A detailed analysis of the results is also given. Only a few relative and a few absolute transition probabilities from other authors, for the mentioned spectral region, are available in the literature.
Descripción7 págs.; 4 figs.; 3 tabs.
Versión del editorhttp://doi.org/10.1093/mnras/stv2710
Identificadoresdoi: 10.1093/mnras/stv2710
issn: 1365-2966
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