Unveiling the Universe with emerging cosmological probes
The detection of the accelerated expansion of the Universe has been one of the major
breakthroughs in modern cosmology. Several cosmological probes (Cosmic Microwave …
breakthroughs in modern cosmology. Several cosmological probes (Cosmic Microwave …
Nonparametric late-time expansion history reconstruction and implications for the Hubble tension in light of recent DESI and type Ia supernovae data
We nonparametrically reconstruct the late-time expansion history in light of the latest baryon
acoustic oscillation (BAO) measurements from DESI combined with various type Ia …
acoustic oscillation (BAO) measurements from DESI combined with various type Ia …
Constraining the curvature density parameter in cosmology
The cosmic curvature density parameter has been constrained in the present work
independent of any background cosmological model. The reconstruction is undertaken …
independent of any background cosmological model. The reconstruction is undertaken …
Learning how to surf: Reconstructing the propagation and origin of gravitational waves with Gaussian Processes
G Cañas-Herrera, O Contigiani… - The Astrophysical …, 2021 - iopscience.iop.org
Soon, the combination of electromagnetic and gravitational signals will open the door to a
new era of gravitational-wave (GW) cosmology. It will allow us to test the propagation of …
new era of gravitational-wave (GW) cosmology. It will allow us to test the propagation of …
Revisiting the cosmic distance duality relation with machine learning reconstruction methods: the combination of HII galaxies and ultra-compact radio quasars
T Liu, S Cao, S Zhang, X Gong, W Guo… - The European Physical …, 2021 - Springer
In this paper, we carry out an assessment of cosmic distance duality relation (CDDR) based
on the latest observations of HII galaxies acting as standard candles and ultra-compact …
on the latest observations of HII galaxies acting as standard candles and ultra-compact …
[HTML][HTML] What are recent observations telling us in light of improved tests of distance duality relation?
T Liu, S Cao, S Ma, Y Liu, C Zheng, J Wang - Physics Letters B, 2023 - Elsevier
As an exact result required by the Etherington reciprocity theorem, the cosmic distance
duality relation (CDDR), η (z)= DL (z)(1+ z)− 2/DA (z)= 1 plays an essential part in modern …
duality relation (CDDR), η (z)= DL (z)(1+ z)− 2/DA (z)= 1 plays an essential part in modern …
Gaussian processes reconstruction of the dark energy potential
Scalar Fields (SF) have emerged as natural candidates for dark energy as quintessential or
phantom fields, as they are the main ingredient of inflation theories. Instead of assuming …
phantom fields, as they are the main ingredient of inflation theories. Instead of assuming …
A possible late-time transition of MB inferred via neural networks
The strengthening of tensions in the cosmological parameters has led to reconsidering the
fundamental aspects of standard cosmology. The tension in the Hubble constant can also be …
fundamental aspects of standard cosmology. The tension in the Hubble constant can also be …
Revisiting a non-parametric reconstruction of the deceleration parameter from combined background and the growth rate data
The cosmic deceleration parameter q has been reconstructed in a non-parametric way using
various combinations of recent observational datasets. The Pantheon compilation of the …
various combinations of recent observational datasets. The Pantheon compilation of the …
Model-independent Test for the Cosmic Distance–Duality Relation with Pantheon and eBOSS DR16 Quasar Sample
B Xu, Z Wang, K Zhang, Q Huang… - The Astrophysical …, 2022 - iopscience.iop.org
In this Paper, we carry out a new model-independent cosmological test for the cosmic
distance–duality relation (CDDR) by combining the latest five baryon acoustic oscillation …
distance–duality relation (CDDR) by combining the latest five baryon acoustic oscillation …