Constraining dark sector perturbations I: cosmic shear and CMB lensing
We present current and future constraints on equations of state for dark sector perturbations. The equations of state considered are those corresponding to a generalized scalar field model and time-diffeomorphism invariant L(g) theories that are equivalent to models of a relativistic elastic medium...
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ftumanchesterpub:oai:pure.atira.dk:publications/0d3d2b8d-8824-4944-ba47-bc9aea2d309c 2024-09-15T18:36:46+00:00 Constraining dark sector perturbations I: cosmic shear and CMB lensing Battye, R A Moss, A Pearson, J A 2015 https://research.manchester.ac.uk/en/publications/0d3d2b8d-8824-4944-ba47-bc9aea2d309c https://doi.org/10.1088/1475-7516/2015/04/048 eng eng https://research.manchester.ac.uk/en/publications/0d3d2b8d-8824-4944-ba47-bc9aea2d309c info:eu-repo/semantics/closedAccess Battye , R A , Moss , A & Pearson , J A 2015 , ' Constraining dark sector perturbations I: cosmic shear and CMB lensing ' , Journal of Cosmology and Astroparticle Physics , no. 4 . https://doi.org/10.1088/1475-7516/2015/04/048 modified gravity dark energy experiments weak gravitational lensing dark energy theory microwave background anisotropies baryon acoustic-oscillations power spectra energy model supernovae cosmology constant cfhtlens article 2015 ftumanchesterpub https://doi.org/10.1088/1475-7516/2015/04/048 2024-09-02T08:17:27Z We present current and future constraints on equations of state for dark sector perturbations. The equations of state considered are those corresponding to a generalized scalar field model and time-diffeomorphism invariant L(g) theories that are equivalent to models of a relativistic elastic medium and also Lorentz violating massive gravity. We develop a theoretical understanding of the observable impact of these models. In order to constrain these models we use CMB temperature data from Planck, BAO measurements, CMB lensing data from Planck and the South Pole Telescope, and weak galaxy lensing data from CFHTLenS. We find non-trivial exclusions on the range of parameters, although the data remains compatible with w = -1. We gauge how future experiments will help to constrain the parameters. This is done via a likelihood analysis for CMB experiments such as CoRE and PRISM, and tomographic galaxy weak lensing surveys, focussing in on the potential discriminatory power of Euclid on mildly non-linear scales. Article in Journal/Newspaper South pole The University of Manchester: Research Explorer Journal of Cosmology and Astroparticle Physics 2015 04 048 048 |
institution |
Open Polar |
collection |
The University of Manchester: Research Explorer |
op_collection_id |
ftumanchesterpub |
language |
English |
topic |
modified gravity dark energy experiments weak gravitational lensing dark energy theory microwave background anisotropies baryon acoustic-oscillations power spectra energy model supernovae cosmology constant cfhtlens |
spellingShingle |
modified gravity dark energy experiments weak gravitational lensing dark energy theory microwave background anisotropies baryon acoustic-oscillations power spectra energy model supernovae cosmology constant cfhtlens Battye, R A Moss, A Pearson, J A Constraining dark sector perturbations I: cosmic shear and CMB lensing |
topic_facet |
modified gravity dark energy experiments weak gravitational lensing dark energy theory microwave background anisotropies baryon acoustic-oscillations power spectra energy model supernovae cosmology constant cfhtlens |
description |
We present current and future constraints on equations of state for dark sector perturbations. The equations of state considered are those corresponding to a generalized scalar field model and time-diffeomorphism invariant L(g) theories that are equivalent to models of a relativistic elastic medium and also Lorentz violating massive gravity. We develop a theoretical understanding of the observable impact of these models. In order to constrain these models we use CMB temperature data from Planck, BAO measurements, CMB lensing data from Planck and the South Pole Telescope, and weak galaxy lensing data from CFHTLenS. We find non-trivial exclusions on the range of parameters, although the data remains compatible with w = -1. We gauge how future experiments will help to constrain the parameters. This is done via a likelihood analysis for CMB experiments such as CoRE and PRISM, and tomographic galaxy weak lensing surveys, focussing in on the potential discriminatory power of Euclid on mildly non-linear scales. |
format |
Article in Journal/Newspaper |
author |
Battye, R A Moss, A Pearson, J A |
author_facet |
Battye, R A Moss, A Pearson, J A |
author_sort |
Battye, R A |
title |
Constraining dark sector perturbations I: cosmic shear and CMB lensing |
title_short |
Constraining dark sector perturbations I: cosmic shear and CMB lensing |
title_full |
Constraining dark sector perturbations I: cosmic shear and CMB lensing |
title_fullStr |
Constraining dark sector perturbations I: cosmic shear and CMB lensing |
title_full_unstemmed |
Constraining dark sector perturbations I: cosmic shear and CMB lensing |
title_sort |
constraining dark sector perturbations i: cosmic shear and cmb lensing |
publishDate |
2015 |
url |
https://research.manchester.ac.uk/en/publications/0d3d2b8d-8824-4944-ba47-bc9aea2d309c https://doi.org/10.1088/1475-7516/2015/04/048 |
genre |
South pole |
genre_facet |
South pole |
op_source |
Battye , R A , Moss , A & Pearson , J A 2015 , ' Constraining dark sector perturbations I: cosmic shear and CMB lensing ' , Journal of Cosmology and Astroparticle Physics , no. 4 . https://doi.org/10.1088/1475-7516/2015/04/048 |
op_relation |
https://research.manchester.ac.uk/en/publications/0d3d2b8d-8824-4944-ba47-bc9aea2d309c |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1088/1475-7516/2015/04/048 |
container_title |
Journal of Cosmology and Astroparticle Physics |
container_volume |
2015 |
container_issue |
04 |
container_start_page |
048 |
op_container_end_page |
048 |
_version_ |
1810480480215105536 |