EDP Sciences
Free access
Volume 395, Number 2, November IV 2002
Page(s) 719 - 725
Section Atomic and molecular data
DOI http://dx.doi.org/10.1051/0004-6361:20021216

A&A 395, 719-725 (2002)
DOI: 10.1051/0004-6361:20021216

MCDF and RQDO study of the fine-structure lines of transition array np $^2 \to n$p (n+1)s in isoelectronic atomic systems

E. Charro and I. Martín

Departamento de Química Física, Universidad de Valladolid, 47011 Valladolid, Spain

(Received 22 May 2002 / Accepted 2 July 2002)

Relativistic calculations of electric dipole (E1) allowed transition for a number of ions in the germanium sequence have been performed. Oscillator strengths for fine-structure transitions within the $\rm 4p^2$- $\rm 4p 5s$ array have been calculated with both the Multiconfigurational Dirac-Fock (MCDF) approach and the Relativistic Quantum Defect Orbital (RQDO) method. The results are analysed on the grounds of the theoretical data available in the literature. Also, a comparative analysis with the homologous silicon sequence is made. The spectra of systems such as Mo XI are important in the context of plasma physics and thermonuclear fusion measurements.

Key words: atomic data -- line: identification

Offprint request: E. Charro, lmnieto@wamba.cpd.uva.es

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