https://doi.org/10.1140/epjc/s10052-023-12186-3
Regular Article - Theoretical Physics
Are we survivors of the sudden past singularity?
1
Institute of Physics, University of Szczecin, Wielkopolska 15, 70-451, Szczecin, Poland
2
Copernicus Center for Interdisciplinary Studies, Szczepańska 1/5, 31-011, Kraków, Poland
3
Institute of Mathematics, Physics and Chemistry, Maritime University of Szczecin, Wały Chrobrego 1-2, 70-500, Szczecin, Poland
Received:
8
September
2023
Accepted:
23
October
2023
Published online:
31
October
2023
In this paper, we investigate the viability of cosmological models featuring a type II singularity that occurs during the past evolution of the Universe. We construct a scenario in which the singularity arises and then constrain the model parameters using observational data from type Ia supernovae, cosmic chronometers, and gamma ray bursts. We find that the resulting cosmological models based on scenarios with the past type II singularity cannot be excluded by kinematical tests using current observations.
© The Author(s) 2023
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