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Cosmology with the moving lens effect
- Source :
- Physical Review D. 104
- Publication Year :
- 2021
- Publisher :
- American Physical Society (APS), 2021.
-
Abstract
- Velocity fields can be reconstructed at cosmological scales from their influence on the correlation between the cosmic microwave background and large-scale structure. Effects that induce such correlations include the kinetic Sunyaev Zel'dovich (kSZ) effect and the moving-lens effect, both of which will be measured to high precision with upcoming cosmology experiments. Galaxy measurements also provide a window into measuring velocities from the effect of redshift-space distortions (RSDs). The information that can be accessed from the kSZ or RSDs, however, is limited by astrophysical uncertainties and systematic effects, which may significantly reduce our ability to constrain cosmological parameters such as $f\sigma_8$. In this paper, we show how the large-scale transverse-velocity field, which can be reconstructed from measurements of the moving-lens effect, can be used to measure $f\sigma_8$ to high precision.<br />Comment: 7 pages, 5 figures, comments welcome
- Subjects :
- Physics
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Field (physics)
010308 nuclear & particles physics
Cosmic microwave background
FOS: Physical sciences
Sigma
Astrophysics::Cosmology and Extragalactic Astrophysics
Astrophysics
Kinetic energy
01 natural sciences
Measure (mathematics)
Galaxy
Cosmology
0103 physical sciences
Lens effect
010303 astronomy & astrophysics
Astrophysics - Cosmology and Nongalactic Astrophysics
Subjects
Details
- ISSN :
- 24700029 and 24700010
- Volume :
- 104
- Database :
- OpenAIRE
- Journal :
- Physical Review D
- Accession number :
- edsair.doi.dedup.....212080c17ec38b037a44a48f851b17fe