Dynamic polarizabilities and Rydberg states of the sodium isoelectronic sequence. II

Dynamic quadrupolar polarizabilities ${\alpha }_q$(ω) for the sodium isoelectronic sequence up to Z=18 have been calculated, and analytic representations of Rydberg d- and s-state wave functions have been obtained using time-dependent coupled Hartree-Fock theory. The excitation energies are obtained from the position of the poles of a frequency-dependent functional. The estimated static limit ${\alpha }_q$(ω${)}_{\omega \to 0}$ compares well with existing static results, and the transition energies are in good agreement with the spectroscopic values. The accuracy of the excited-state wave functions is checked indirectly by evaluating quadrupolar oscillator and multiplet strengths which compare favorably with other results wherever available. Furthermore, the quantum-defect values are estimated using complete screening and compared with those obtained spectroscopically. Excellent agreement is observed.