Redshift propagation equations in the ${\beta }^{\prime }\ne 0$ Szekeres models

Andrzej Krasiński, Krzysztof Bolejko

The set of differential equations obeyed by the redshift in the general ${\beta }^{\prime }\ne 0$ Szekeres spacetimes is derived. Transversal components of the ray's momentum have to be taken in…