Transition probabilities in Te II and Te III spectra

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...

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Bibliographic Details
Published in:Astronomy and astrophysics (Berlin) 2013-03, Vol.551, p.1-10
Main Authors: Zhang, W., Palmeri, P., Quinet, P., Biémont, É.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics
atomic data
atomic processes
Electric dipoles
Mathematical analysis
Micrometers
Spectra
Tellurium
Transition probabilities
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Summary: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.
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361/201220918