@article{202403.1663, doi = {10.20944/preprints202403.1663.v1}, url = {https://doi.org/10.20944/preprints202403.1663.v1}, year = 2024, month = {March}, publisher = {Preprints}, author = {Espen Haug}, title = {The Photon Energy Density Parameter Ωγ of the Universe Exactly Derived}, journal = {Preprints} }