Doppler, gravitational and cosmological redshifts
General Physics
2025-04-08 v2
Abstract
Ortiz and Ibarra-Castor (2024) have presented a "Generalized redshift formula" taking account of only energy conservation considerations. Contrary to their claim, we emphasize to invoke both energy and momentum considerations in order to deduce all three types of redshift (Doppler, gravitational and cosmological). We formulate our views on the three physical e ects in a consistent manner in addition to addressing the lack of relevant references in Ref. (Ortiz and Ibarra-Castor, 2024)
Keywords
Cite
@article{arxiv.2502.00087,
title = {Doppler, gravitational and cosmological redshifts},
author = {Klaus Wilhelm and Bhola N. Dwivedi},
journal= {arXiv preprint arXiv:2502.00087},
year = {2025}
}
Comments
20 pages, 2 figures