Axial Bianchi I meets drifting extragalactic sources
arXiv:2407.02889 · doi:10.1088/1361-6382/adbda5
Abstract
We recompute {\it ab initio} the drift of comoving sources in axial Bianchi I universes. Our result resolves the long-standing disagreement between the computations by Quercellini et al. from 2009 and by Marcori et al. from 2018 in favour of the latter. These computations have a potential impact on Gaia data analysis and cosmological parameter estimation.
12 pages; version 2: 16 pages, 1 figure, matches published version + second appendix