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    • Keywords


      Collision strength; configuration interaction

    • Abstract


      Collision strengths for all the transitions between the 15 lowest states of neon-like Ni XIX have been calculated for electron impact in the 80–140 Ry energy range. Configuration-interaction wavefunctions have been used to represent the target states. The standardR-matrix code has been used to calculate the lower scattering partial waves (L≤9), while a no-exchange version of the same code has been used to compute efficiently the higher partial waves (L≥10). Effective collision strengths for 105 excitation transitions between the ground state 2s22p61Se and the 142s22p53l Rydberg states are tabulated for electron temperatures in the range logT=5.40 to logT=7.00, withT expressed in °K.

    • Author Affiliations


      Man Mohan1 M Le Dourneuf2 A Hibbert3 V M Burke3

      1. Department of Physics and Astrophysics, Delhi University, Delhi - 110 007, India
      2. Départment “Atomes et Molécules en Astrophysique”, Observatoire de Paris, Laboratoire de Théorie des Processus Atomiques et Moléculaires (U.P.R. 261 du C.N.R.S.), Meudon - 92195, France
      3. Department of Applied Mathematics and Theoretical Physics, The Queen’s University, Belfast - BT7 1NN, UK
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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