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DC Field | Value | Language |
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dc.contributor.author | Sultana, Joseph | - |
dc.date.accessioned | 2020-05-27T07:26:39Z | - |
dc.date.available | 2020-05-27T07:26:39Z | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | Sultana, J. (2016). The Rh = ct universe and quintessence. Monthly Notices of the Royal Astronomical Society, 457(1), 212-216. | en_GB |
dc.identifier.uri | https://www.um.edu.mt/library/oar/handle/123456789/56829 | - |
dc.description.abstract | Over the last few years the Rh = ct universe has received a lot of attention, particularly when observational evidence seems to favour this over the standard ∧ cold dark matter (∧CDM) universe. Like the ∧CDM, the Rh = ct universe is based on a Friedmann-Robertson-Walker (FRW) cosmology where the total energy density ρ and pressure p of the cosmic fluid contain a dark energy component besides the usual (dark and baryonic) matter and radiation components. However, unlike the∧CDMthis model has the simple equation of state ρ +3p=0, i.e. its total active gravitational mass vanishes, which would therefore exclude a cosmological constant as the source of its dark energy component. Faced with this issue, in this paper, we examine various possible sources for the dark energy component of the Rh = ct universe and show that quintessence which has been used in other various dynamical dark energy models could also be a possible source in this case. | en_GB |
dc.language.iso | en | en_GB |
dc.publisher | Oxford University Press | en_GB |
dc.rights | info:eu-repo/semantics/openAccess | en_GB |
dc.subject | Gravitation | en_GB |
dc.subject | Cosmology | en_GB |
dc.subject | Dark energy (Astronomy) | en_GB |
dc.subject | Dark matter (Astronomy) | en_GB |
dc.title | The Rh = ct universe and quintessence | en_GB |
dc.type | article | en_GB |
dc.rights.holder | The copyright of this work belongs to the author(s)/publisher. The rights of this work are as defined by the appropriate Copyright Legislation or as modified by any successive legislation. Users may access this work and can make use of the information contained in accordance with the Copyright Legislation provided that the author must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the prior permission of the copyright holder. | en_GB |
dc.description.reviewed | peer-reviewed | en_GB |
dc.identifier.doi | 10.1093/mnras/stv3012 | - |
dc.publication.title | Monthly Notices of the Royal Astronomical Society | en_GB |
Appears in Collections: | Scholarly Works - FacSciMat |
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File | Description | Size | Format | |
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The_Rh_ct_universe_and_quintessence.pdf | 197.22 kB | Adobe PDF | View/Open |
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