Results 11 to 20 of about 89,722 (300)

Observational constraints on Rastall’s cosmology [PDF]

open access: yesThe European Physical Journal C, 2013
Latex file, 14 pages, 6 figures in eps format.
C. E. M. Batista   +3 more
openaire   +6 more sources

Observational cosmology in macroscopic gravity [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2012
22 ...
Clifton, T, Coley, A, Hoogen, RVD
openaire   +6 more sources

Observational effects from quantum cosmology [PDF]

open access: bronze, 2013
The status of quantum cosmologies as testable models of the early universe is assessed in the context of inflation. While traditional Wheeler-DeWitt quantization is unable to produce sizable effects in the cosmic microwave background, the more recent ...
Gianluca Calcagni
openalex   +5 more sources

Observational issues in loop quantum cosmology [PDF]

open access: green, 2014
Quantum gravity is sometimes considered as a kind of metaphysical speculation. In this review, we show that, although still extremely difficult to reach, observational signatures can in fact be expected.
Aurélien Barrau   +3 more
openalex   +5 more sources

Observational exclusion of a consistent loop quantum cosmology scenario [PDF]

open access: green, 2016
It is often argued that inflation erases all the information about what took place before it started. Quantum gravity, relevant in the Planck era, seems therefore mostly impossible to probe with cosmological observations.
Boris Bolliet   +3 more
openalex   +5 more sources

Predicting cosmological observables with PyCosmo

open access: yesAstronomy and Computing, 2021
Astronomy and Computing ...
F. Tarsitano   +9 more
openaire   +4 more sources

Machine learning for observational cosmology

open access: yesReports 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   +3 more sources

The DESI Survey Validation: Results from Visual Inspection of Bright Galaxies, Luminous Red Galaxies, and Emission-line Galaxies

open access: yesThe 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

Republication of: Observations in cosmology [PDF]

open access: yesGeneral Relativity and Gravitation, 2010
This is a reprinting of a paper by Jerome Kristian and Rainer K. Sachs, first published in 1966, in which they proposed a power-series scheme for reading out various parameters of the Universe directly from observations in a model-independent way. The paper has been selected by the Editors of General Relativity and Gravitation for re-publication in the
Jerome Kristian, Rainer K. Sachs
openaire   +2 more sources

Reionization and Cosmology with 21 cm Fluctuations [PDF]

open access: yes, 2009
Measurement of the spatial distribution of neutral hydrogen via the redshifted 21 cm line promises to revolutionize our knowledge of the epoch of reionization and the first galaxies, and may provide a powerful new tool for observational cosmology from ...
J. Stuart B. Wyithe   +4 more
core   +1 more source

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