Abstract
In this paper, we generalize the Phenomenologically Emergent Dark Energy (PEDE) model, famous for solving the long standing Hubble tension, with our Modified Emergent Dark Energy (MEDE) scenario. This new model introduces one additional parameter ‘[Formula: see text]’ that, depending on the value assumed by the analysis, can recover [Formula: see text]CDM (if [Formula: see text]), PEDE (if [Formula: see text]). We perform a robust observational analysis of MEDE using various observational datasets including cosmic microwave background (CMB) radiation, baryon acoustic oscillations (BAO) distance measurements, a local value of the Hubble constant (R19) and the Pantheon sample of Supernovae Type Ia. We find that when [Formula: see text] is free to vary, the [Formula: see text] tension is alleviated but not solved like in PEDE, and the [Formula: see text]CDM is always preferred by the data when R19 is excluded, as confirmed by the bayesian evidence analysis.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
