In this paper, we develop a new unsupervised machine learning technique comprised of a
feature extractor, a convolutional autoencoder, and a clustering algorithm consisting of a …

The Etherington reciprocity theorem, or distance duality relation (DDR), relates the mutual
scaling of cosmic distances in any metric theory of gravity where photons are massless and …

The vast quantity of strong galaxy–galaxy gravitational lenses expected by future large-scale
surveys necessitates the development of automated methods to efficiently model their mass …

We introduce a way of measuring H 0 from a combination of independent geometrical data
sets, without the need for calibration or the choice of a cosmological model. We build on the …

General relativity reproduces main current cosmological observations, assuming the validity
of the cosmic distance duality relation (CDDR) at all scales and epochs. However, CDDR is …

Two types of distance measurement are important in cosmological observations, the angular
diameter distance dA and the luminosity distance dL. In this work, we carried out an …

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 …

Abstract In 2012, Bilicki and Seikel (Mon Not R Astron Soc 425: 1664, 2012) showed that H
(z) data reconstructed using Gaussian Process Regression from cosmic chronometers and …

Model-independent Test of the Cosmic Distance Duality Relation - IOPscience This site uses
cookies. By continuing to use this site you agree to our use of cookies. To find out more, see …

A validation of the cosmic distance-duality relation (CDDR) is crucial because any
observational departure from it could be a signal of new physics. In this work, we explore the …