English

On the luminosity-angular distances relation for an expanding universe

General Physics 2023-05-04 v8

Abstract

The luminosity-angular distance relation for an expanding universe is given by DL=DA(1+z)2D_L=D_A(1+z)^2. This relation is commonly proven by geometrical considerations from the source point of view assuming an expanding universe. In this note, the same cosmological relation is derived from the observer point of view for the assumed expanding universe.

Cite

@article{arxiv.2003.05307,
  title  = {On the luminosity-angular distances relation for an expanding universe},
  author = {Juan De Vicente},
  journal= {arXiv preprint arXiv:2003.05307},
  year   = {2023}
}

Comments

Deduction of luminosity-angular distance relation from the observer point of view for an expanding universe

R2 v1 2026-06-23T14:11:38.198Z