Results 11 to 20 of about 92,607 (277)
Machine learning for observational cosmology
Reports on Progress in Physics, 2023 Abstract An array of large observational programs using ground-based and space-borne telescopes is planned in the next decade. The forthcoming wide-field sky surveys are expected to deliver a sheer volume of data exceeding an exabyte.
Kana Moriwaki +2 more
openaire +5 more sources
Living Reviews in Relativity, 2001 This is a review of the physics and cosmology of the cosmological constant. Focusing on recent developments, I present a pedagogical overview of cosmology in the presence of a cosmological constant, observational constraints on its magnitude, and the ...
Carroll Sean M.
doaj +2 more sources
Proceedings of European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2019), 2020 Despite the title, I am afraid that I will not be able to really do justice to the broad topic I was given to review. But I will show the current striking level of precise consistency between the CMB and LSS data \textit{within the \LCDM\ theoretical framework} (with the acronyms CMB and LSS standing for Cosmic Microwave Background and Large Scale ...
openaire +2 more sources
Observations in quantum cosmology
Classical and Quantum Gravity, 2023 Abstract In this review, we focus on whether a canonical quantization of general relativity can produce testable predictions for cosmology. In particular, we examine how this approach can be used to model the evolution of primordial perturbations. This program of quantum geometrodynamics, first advocated by John Wheeler and Bryce DeWitt,
Leonardo Chataignier +2 more
openaire +2 more sources
Dark Matter and Galaxy Formation: Challenges for the Next Decade [PDF]
, 2004 The origin of the galaxies represents an important focus of current cosmological research, both observational and theoretical. Its resolution involves a comprehensive understanding of star formation, galaxy dynamics, the cosmology of the very early ...
Silk, Joseph
core +3 more sources
The Astrophysical Journal, 2023 The Dark Energy Spectroscopic Instrument (DESI) Survey has obtained a set of spectroscopic measurements of galaxies to validate the final survey design and target selections.
Ting-Wen Lan +81 more
doaj +1 more source
Observational constraints on soft dark energy and soft dark matter: Challenging ΛCDM cosmology
Nuclear Physics B, 2023 Soft cosmology is an extension of standard cosmology allowing for a scale-dependent equation-of-state (EoS) parameter in the dark sectors, which is one of the properties of soft materials in condensed-matter physics, that may arise either intrinsically ...
Emmanuel N. Saridakis +4 more
doaj +1 more source
Low-Redshift Observational Constraints on Dark Energy Cosmologies [PDF]
Iranian Journal of Astronomy and Astrophysics, 2023 Applying the Markov chain Monte Carlo algorithm and using low-redshift observational data, we put cosmological constraints on dark energy cosmologies. Our main aim is to show the influence of each data sample on the procedure of constraining.
Mohammad Malekjani
doaj +1 more source
Observational constraints on self-accelerating cosmology [PDF]
, 2006 The DGP brane-world model provides a simple alternative to the standard LCDM cosmology, with the same number of parameters. There is no dark energy - the late universe self-accelerates due to an infrared modification of gravity.
Maartens, Roy, Majerotto, Elisabetta
core +2 more sources
Cosmological observations in non-local F(R) cosmology [PDF]
Astrophysics and Space Science, 2011 12 pages, 7 figures, will be published in Astrophysics and space ...
Farajollahi, H. +3 more
openaire +3 more sources