Atomic data and spectral line intensities for the neon isoelectronic sequence (Si V through Kr XXVII)

Abstract

The electron impact collision strengths and the spontaneous radiative decay rates are presented for the following ions of the Ne isoelectronic sequence: Si V, Ar IX, Ti XIII, Fe XVII, Ge XXIII and Kr XXVII. Data are given for the 27 levels that belong to four different configurations (2 s 22 p 6, 2 s 22 p 53 s, 2 s 22 p 53 p, and 2 s 22 p 53 d). By use of the atomic data calculations of the above-mentioned ions, the atomic data for all the ions with 14 ⩽ Z ⩽ 36 have been interpolated. Energy levels and level populations are presented for all the even- Z ions with 14 ⩽ Z ⩽ 36 (Si V, S VII, Ar IX, Ca XI, Ti XIII, Cr XV, Fe XVII, Ni XIX, Zn XXI, Ge XXIII, Se XXV, and Kr XXVII). The level populations are given for the three electron densities 10 13, 10 14, and 10 15 cm −3. Spectral line intensities are also presented for all transitions with intensities within two orders of magnitude of the most intense line in each ion.