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It has recently been proposed that both dark matter (DM) and dark energy (DE) can be treated as a single component when they are considered in the context of a… Click to show full abstract
It has recently been proposed that both dark matter (DM) and dark energy (DE) can be treated as a single component when they are considered in the context of a polytropic DM fluid with thermodynamical content. Depending on only one free parameter, that is, the polytropic exponent, − 0.103 k ph , of the form k ph 3+ n s eff , with the associated scalar spectral index, n s eff , being equal to n s eff = 0.970. This theoretical value reproduces the corresponding observational Planck result, that is, n s obs = 0.968 ± 0.006.
Keywords:
perturbations cdm;
dark matter;
cdm like;
polytropic;
cosmological perturbations
Journal Title: Astronomy and Astrophysics
Year Published: 2017
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Journal Title: Astronomy and Astrophysics
Year Published: 2017
Link to full text (if available)
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recommendations!