Energy of Photons in Expanding Spacetime: Comparing FLRW and Conformal Cosmology Metrics
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10506960" target="_blank" >RIV/00216208:11310/25:10506960 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=sGCNKw4qUB" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=sGCNKw4qUB</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/galaxies13050100" target="_blank" >10.3390/galaxies13050100</a>
Alternative languages
Result language
angličtina
Original language name
Energy of Photons in Expanding Spacetime: Comparing FLRW and Conformal Cosmology Metrics
Original language description
We investigate the behaviour of photons in Riemann spacetime, focusing on how their velocity and energy are affected by cosmic expansion. Specifically, we examine the differences in energy conservation depending on the cosmological model. Our findings indicate that photons exhibit fundamentally different behaviour based on the chosen metric. In the standard Lambda CDM model, which relies on the Friedmann-Lemaître-Robertson-Walker (FLRW) metric, the energy conservation law for redshifted photons is violated. However, in a cosmological model based on the conformal cosmology (CC) metric, this law remains valid. The CC metric offers additional advantages, as it accurately reproduces the cosmological redshift, cosmic time dilation observed in Type Ia supernova light curves, and flat galaxy rotation curves without requiring the introduction of dark matter. These findings underscore the potential significance of the CC metric in cosmological applications.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Galaxies
ISSN
2075-4434
e-ISSN
2075-4434
Volume of the periodical
13
Issue of the periodical within the volume
5
Country of publishing house
CH - SWITZERLAND
Number of pages
11
Pages from-to
100
UT code for WoS article
001601550600001
EID of the result in the Scopus database
2-s2.0-105020050274