Volume 551, March 2013
|Number of page(s)||10|
|Section||Atomic, molecular, and nuclear data|
|Published online||07 March 2013|
Transition probabilities in Te II and Te III spectra⋆
1 Astrophysique et Spectroscopie, Université de Mons − UMONS, Place du Parc 20, 7000 Mons, Belgium
2 IPNAS (Bât. B15), Université de Liège, Sart Tilman, 4000 Liège, Belgium
Received: 14 December 2012
Accepted: 5 February 2013
Context. Due to the need of transition probabilities for heavy ions, including those of tellurium, in different fields of physics and in astrophysics, we have investigated theoretically the atomic structure of two selected tellurium ions (Te+ and Te++) for which no theoretical data were available so far.
Aims. The first transition probabilities have been calculated for the electric dipole (E1) transitions with wavelengths shorter than 1 micrometer in Te II-III.
Methods. Both the multiconfiguration Dirac-Hartree-Fock (MCDHF) method and the relativistic Hartree-Fock (HFR) approach, in which core-polarization (CPOL) effects were included, have been used for the calculations.
Results. The results obtained with these two completely independent methods are in reasonable agreement. As a consequence, the transition probabilities obtained in this work are expected to be reliable. They fill in a gap concerning the radiative parameters in these two ions.
Key words: atomic data / atomic processes
Tables 8 and 9 are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (22.214.171.124) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/551/A136
© ESO, 2013
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