Eur. Phys. J. D (2015) 69: 140
https://doi.org/10.1140/epjd/e2015-50634-6

Regular Article

Dielectronic recombination rate coefficients of initially rubidium-like tungsten^*

¹ Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, P.R. China
² Helmholtz-Institut Jena, 07743 Jena, Germany
³ Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität Jena, 07743 Jena, Germany

^a e-mail: wuzhongwen05@126.com

Received: 28 August 2014
Received in final form: 8 April 2015
Published online: 27 May 2015

Abstract

Ab initio calculations of dielectronic recombination (DR) rate coefficients of initially rubidium-like W³⁷⁺ ions have been performed for the electron temperatures from 1 eV to 5 × 10⁴ eV, by using the Flexible Atomic Code based on the relativistic configuration-interaction method. Special attention has been paid to the partial contributions to total DR rate coefficients as associated with the excitation of individual subshells. A detailed comparison of the calculations shows that the excitation from 4p subshell dominates total DR rate coefficients followed by the excitations from 4s and 4d subshells, while the contribution of excitations from 3l(l = s,p,d) subshells becomes important only at high temperatures. Besides, it is found that the electron excitations associated with △ n = 0,1 dominate at low-temperature plasmas, however, the excitations associated with △ n ≥ 2 become non-negligible at high-temperature ones.