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Energies of ns[1/2] (n= 6-9), np[j] (n = 6-8), nd[j] (n= 6-7), and 5f[j]states in neutral Au and Au-like ions with nuclear charges Z = 80 - 83 arecalculated using relativistic many-body perturbation theory. Reduced matrixelements, oscillator strengths, transition rates and lifetimes are determinedfor the 30 possible nl[j]-n'l'[j'] electric-dipole transitions. Results for alimited number states ns[1/2], np[j] (n= 6-7) and 6d[j] are obtained in therelativistic single-double (SD) approximation, where single and doubleexcitations of Dirac-Fock wave functions are included to all orders inperturbation theory. Using SD wave functions, accurate values are obtained forenergies of the eight lowest states and for the fourteen possibleelectric-dipole matrix elements between these states. With the aid of the SDwave functions, we also determine transition rates and oscillator strengths forthe fourteen transitions together with lifetimes of 6p[j], 7p[j], and 6d[j]levels. We investigate the hyperfine structure in HgII and TlIII. The hyperfineA-values are determined for 6s[1/2] and 6p[j] states in 199Hg+, 201Hg+, and205Tl++ isotopes. These calculations provide a theoretical benchmark forcomparison with experiment and theory.Comment: 8 figure

Excitation energies, oscillator strengths, and lifetimes of levels along the gold isoelectronic sequence