EDP Sciences
Free access
Volume 373, Number 2, July II 2001
Page(s) 720 - 729
Section Atomic and molecular data
DOI http://dx.doi.org/10.1051/0004-6361:20010633

A&A 373, 720-729 (2001)
DOI: 10.1051/0004-6361:20010633

Regularities along spectral series in forbidden transitions of Ti $\mathsf{^{11+}}$

E. Charro and I. Martín

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

(Received 17 January 2001 / Accepted 4 April 2001)

Electric quadrupole (E2) transitions of $\rm Ti^{11+}$ have been computed with the Relativistic Quantum Defect Orbital (RQDO) method. The correctness of our predictions has been analysed through the inspection of the systematic behaviour of the RQDO line strengths along the spectral series, and by the excellent accord of the $S_{\rm RQDO}$ results with the scarce data available in the literature. $\rm Ti^{11+}$ being one of the ions of the iron group, the study of its forbidden lines is of particular interest. The spectrum of this ion is important for the study of plasmas in astrophysical objects and fusion devices.

Key words: atomic data

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

© ESO 2001