The Dark Sector Cosmology

Abstract

The most important problem in fundamental physics is the description of the contents of the Universe. Today, we know that 95% thereof is totally unknown. Two thirds of that amount is the mysterious Dark Energy described in an interesting and important review. We briefly extend here the ideas contained in that review including the more general Dark Sector, that is, Dark Matter and Dark Energy, eventually composing a new physical Sector. Understanding the Dark Sector with precision is paramount for us to be able to understand all the other cosmological parameters comprehensively as modifications of the modelling could lead to potential biases of inferred parameters of the model, such as measurements of the Hubble constant and distance indicators such as the Baryon Acoustic Oscillations. We discuss several modern methods of observation that can disentangle the different possible descriptions of the Dark Sector. The possible application of some theoretical developments are also included in this paper as well as a more thorough evaluation of new observational techniques at lower frequencies and gravitational waves.

arXiv comment14 pages, invited paper to appear in Int. J. Mod. Phys. D

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Cited by in corpus (13)

• The BINGO Project I: Baryon Acoustic Oscillations from Integrated Neutral Gas Observations
• Interacting quintessence in light of Generalized Uncertainty Principle: Cosmological perturbations and dynamics
• The BINGO Project VII: Cosmological Forecasts from 21cm Intensity Mapping
• DGP and DGPish cosmologies from $f(Q)$ actions
• Primordial Black Hole Merger Rate in $f(R)$ Gravity
• Constraints on interacting dark energy revisited: implications for the Hubble tension
• The BINGO Project IX: Search for Fast Radio Bursts -- A Forecast for the BINGO Interferometry System
• The BINGO project VIII: On the recoverability of the BAO signal on HI intensity mapping simulations
• Strong gravitational lensing by black hole in F(R) Euler Heisenberg Gravity's Rainbow
• The BINGO/ABDUS Project: Forecast for cosmological parameters from a mock Fast Radio Bursts survey
• Asymptotically-Flat Black Hole Solutions in Symmergent Gravity
• Machine learning analysis of Photometric data from the Dark Energy Survey
• The BINGO project X. Cosmological parameter constraints from HI Intensity Mapping lognormal simulations