Publication: Tracker phantom field and a cosmological constant: Dynamics of a composite dark energy model
Issued Date
2021-12-15
Resource Type
ISSN
24700029
24700010
24700010
Other identifier(s)
2-s2.0-85120826194
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Physical Review D. Vol.104, No.12 (2021)
Suggested Citation
Francisco X.Linares Cedeño, Nandan Roy, L. Arturo Ureña-López Tracker phantom field and a cosmological constant: Dynamics of a composite dark energy model. Physical Review D. Vol.104, No.12 (2021). doi:10.1103/PhysRevD.104.123502 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/78989
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Tracker phantom field and a cosmological constant: Dynamics of a composite dark energy model
Other Contributor(s)
Abstract
In this work, we study tracker phantom dark energy models with a general parametrization of the scalar potentials. Our analysis also considers the scenario of having both phantom field and the cosmological constant as the dark energy components. A detailed statistical analysis with current cosmological observations shows an increase in the value of the Hubble parameter due to the presence of phantom dark energy but it cannot alleviate the Hubble tension completely. Our results using Bayesian methods suggest a decisive evidence in favor of a phantom field over a positive cosmological constant, although the possibility of a negative cosmological constant cannot be ruled out, hidden in the dark sector.