Challenges for ΛCDM: An update

L Perivolaropoulos, F Skara - New Astronomy Reviews, 2022 - Elsevier
A number of challenges to the standard Λ CDM model have been emerging during the past
few years as the accuracy of cosmological observations improves. In this review we discuss …

Teleparallel gravity: from theory to cosmology

S Bahamonde, KF Dialektopoulos… - Reports on Progress …, 2023 - iopscience.iop.org
Teleparallel gravity (TG) has significantly increased in popularity in recent decades, bringing
attention to Einstein's other theory of gravity. In this Review, we give a comprehensive …

The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample …

JE Bautista, R Paviot, M Vargas Magaña… - Monthly Notices of …, 2021 - academic.oup.com
We present the cosmological analysis of the configuration-space anisotropic clustering in
the completed Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic …

The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample …

H Gil-Marín, JE Bautista, R Paviot… - Monthly Notices of …, 2020 - academic.oup.com
We analyse the clustering of the Sloan Digital Sky Survey IV extended Baryon Oscillation
Spectroscopic Survey Data Release 16 luminous red galaxy sample (DR16 eBOSS LRG) in …

Quintom cosmology and modified gravity after DESI 2024

Y Yang, X Ren, Q Wang, Z Lu, D Zhang, YF Cai… - Science Bulletin, 2024 - Elsevier
We reconstruct the cosmological background evolution under the scenario of dynamical
dark energy through the Gaussian process approach, using the latest Dark Energy …

Arbitrating the S8 discrepancy with growth rate measurements from redshift-space distortions

RC Nunes, S Vagnozzi - Monthly Notices of the Royal …, 2021 - academic.oup.com
Within the Lambda cold dark matter (ΛCDM) model, measurements from recent cosmic
microwave background (CMB) and weak lensing (WL) surveys have uncovered a∼ 3σ …

Baryon acoustic oscillations at z= 2.34 from the correlations of Lyα absorption in eBOSS DR14

V de Sainte Agathe, C Balland… - Astronomy & …, 2019 - aanda.org
We measure the imprint of primordial baryon acoustic oscillations (BAOs) in the correlation
function of Lyα absorption in quasar spectra from the Baryon Oscillation Spectroscopic …

A simple phenomenological emergent dark energy model can resolve the Hubble tension

X Li, A Shafieloo - The Astrophysical Journal Letters, 2019 - iopscience.iop.org
Motivated by the current status of cosmological observations and significant tensions in the
estimated values of some key parameters assuming the standard ΛCDM model, we propose …

Evolution of the tension with the determination and implications for modified gravity theories

L Kazantzidis, L Perivolaropoulos - Physical Review D, 2018 - APS
We construct an updated extended compilation of distinct (but possibly correlated) f σ 8 (z)
redshift space distortion (RSD) data published between 2006 and 2018. It consists of 63 …

S 8 increases with effective redshift in ΛCDM cosmology

SA Adil, Ö Akarsu, M Malekjani… - Monthly Notices of …, 2024 - academic.oup.com
Hubble constant H 0 and weighted amplitude of matter fluctuations S 8 determinations are
biased to higher and lower values, respectively, in the late universe with respect to early …