MeV Dark Energy Emission from a De Sitter Universe

Yasmín B. Alcántara-Pérez, Miguel A. García-Aspeitia*, Humberto Martínez-Huerta, Alberto Hernández-Almada

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The evolution of a de Sitter Universe is the basis for both the accelerated Universe and the late-stationary Universe. So, how do we differentiate between both universes? In this paper, we state that it is not possible to design an experiment using luminous or angular distances to distinguish between the two cases because they are the same during the de Sitter phase. However, this equivalence allows us prediction of the signal of a constant dark energy emission with a signal peak around 29.5 MeV, in which, according to our astrophysical test of survival probability, the radiation must be non-standard photons. Remarkably, experiments by EGRET and COMPTEL have observed an excess of gamma photons in this predicted region, coming from a possible decay process of dark energy emission, which may constitute the smoking gun of a late-stationary Universe with the continuous creation of non-standard radiation, an alternative approach to understanding the current stages of the Universe’s evolution.

Original languageEnglish
Article number513
Issue number12
Publication statusPublished - Dec 2023

Bibliographical note

Publisher Copyright:
© 2023 by the authors.

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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