Sensitivity coefficients to $\alpha$-variation for astrophysically relevant transitions in Ni II
Atomic Physics
2014-11-03 v2 Cosmology and Nongalactic Astrophysics
Abstract
We calculated the dependence of the transition frequencies on the fine-structure constant (-factors) for Ni~II. Nickel is one of the few elements with high sensitivity to -variation, whose lines are observed at high redshifts. This makes it a sensitive probe for -variation on the cosmological timescale. The electronic structure of Ni II ion was treated within the configuration interaction (CI) method using Dirac-Coulomb Hamiltonian.
Keywords
Cite
@article{arxiv.1407.1860,
title = {Sensitivity coefficients to $\alpha$-variation for astrophysically relevant transitions in Ni II},
author = {E. A. Konovalova and M. G. Kozlov and R. T. Imanbaeva},
journal= {arXiv preprint arXiv:1407.1860},
year = {2014}
}