activity
20102026
most citedCosmological models with linearly varying deceleration parameter

198 citations · 1.8k across the 47 of their papers we have counts for

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Showing 2024Show all

7 papers · 1 filter

gr-qc2024★ 17 cited

Unexplored regions in teleparallel gravity: Sign-changing dark energy density

Ozgur Akarsu, Bilal Bulduk, Antonio De Felice +2

While gravity has shown considerable potential in addressing cosmological tensions, we explore previously overlooked solution spaces that hold further promise. We examine th…

astro-ph.CO2024★ 23 cited

Exploring new physics in the late Universe's expansion through non-parametric inference

Miguel A. Sabogal, Özgür Akarsu, Alexander Bonilla +2

In this study, we investigate deviations from the Planck-CDM model in the late universe () using the Gaussian Processes method, with minimal assumptions. Our goa…

astro-ph.CO2024★ 28 cited

CDM cosmology: Alleviating major cosmological tensions by predicting standard neutrino properties

Anita Yadav, Suresh Kumar, Cihad Kibris +1

We investigate a two-parameter extension of the CDM model by allowing variations in the effective number of neutrino species and their total mass $\sum m_ν…

astro-ph.CO2024★ 38 cited

Cosmological constraints on CDM scenario in a type II minimally modified gravity

Özgür Akarsu, Antonio De Felice, Eleonora Di Valentino +5

The idea of a rapid sign-switching cosmological constant (mirror AdS-dS transition) in the late universe at , known as the CDM model, has significantly improve…

astro-ph.CO2024★ 10 cited

CDM cosmology from a type-II minimally modified gravity

Özgür Akarsu, Antonio De Felice, Eleonora Di Valentino +5

We integrate CDM, a promising scenario for alleviating cosmological tensions, into VCDM, a type-II minimally modified gravity. This promotes the scenario to a fully pred…

astro-ph.CO2024★ 31 cited

Transition dynamics in the CDM model: Implications for bound cosmic structures

Evangelos A. Paraskevas, Arman Cam, Leandros Perivolaropoulos +1

We explore the predictions of CDM, a novel framework suggesting a rapid anti-de Sitter (AdS) to de Sitter (dS) vacua transition in the late Universe, on bound cosmic str…

astro-ph.CO2024★ 51 cited

CDM Tensions: Localising Missing Physics through Consistency Checks

Özgür Akarsu, Eoin Ó Colgáin, Anjan A. Sen +1

CDM tensions are by definition model dependent; one sees anomalies through the prism of CDM. Thus, progress towards tension resolution necessitates checking the consistency o…