Coefficients of sensitivity to α variation for astrophysically relevant transitions in Ni ii

E. A. Konovalova, M. G. Kozlov, and R. T. Imanbaeva
Phys. Rev. A 90, 042512 – Published 30 October 2014

Abstract

We calculated the dependence of the transition frequencies on the fine-structure constant α (q factors) for Ni ii. Nickel is one of the few elements with high sensitivity to α variation, whose lines are observed at high redshifts. This makes it a sensitive probe for α variation on the cosmological time scale. The electronic structure of Ni ii ion was treated within the configuration interaction method using the Dirac-Coulomb Hamiltonian.

  • Figure
  • Received 27 August 2014

DOI:https://doi.org/10.1103/PhysRevA.90.042512

©2014 American Physical Society

Authors & Affiliations

E. A. Konovalova1, M. G. Kozlov1,2, and R. T. Imanbaeva2,1

  • 1Petersburg Nuclear Physics Institute, Gatchina 188300, Russia
  • 2St. Petersburg Electrotechnical University “LETI”, Prof. Popov Str. 5, 197376 St. Petersburg, Russia

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Vol. 90, Iss. 4 — October 2014

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