Results 1 to 10 of about 171,489 (202)
Weak Gravitational Lensing of the CMB [PDF]
Phys.Rept. 429 (2006) 1-65, 2006 Weak gravitational lensing has several important effects on the cosmic microwave background (CMB): it changes the CMB power spectra, induces non-Gaussianities, and generates a B-mode polarization signal that is an important source of confusion for the signal from primordial gravitational waves.
Antony Lewis, Anthony Challinor
arxiv +7 more sources
Weak Gravitational Lensing [PDF]
Phys.Rept.340:291-472,2001, 1999 We review theory and applications of weak gravitational lensing. After summarising Friedmann-Lemaitre cosmological models, we present the formalism of gravitational lensing and light propagation in arbitrary space-times. We discuss how weak-lensing effects can be measured.
Matteo Maturi, Matthias Bartelmann
arxiv +7 more sources
Weak gravitational lensing by voids [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 We consider the prospects for detecting weak gravitational lensing by underdensities (voids) in the large-scale matter distribution. We derive the basic expressions for magnification and distortion by spherical voids. Clustering of the background sources and cosmic variance are the main factors which limit in principle the detection of lensing by voids.
Luca Amendola +4 more
openaire +4 more sources
Weak Gravitational Lensing [PDF]
, 2005 This review forms the Weak Lensing part of the Saas-Fee Advanced Course on Gravitational Lensing. It describes the basicsm applications and results of weak lensing. Contents: (1) Introduction (2) The principles of weak gravitational lensing (3) Observational issues and challenges (4) Clusters of galaxies: Introduction, and strong lensing (5) Mass ...
arxiv +3 more sources
Weak gravitational lensing with deimos [PDF]
Monthly Notices of the Royal Astronomical Society, 2011 7 pages, 3 figures, fixed typo in Eq ...
Melchior, P. +3 more
openaire +6 more sources
Cluster Weak Gravitational Lensing [PDF]
arXiv: Cosmology and Nongalactic Astrophysics, 2010 Weak gravitational lensing of background galaxies is a unique, direct probe of the distribution of matter in clusters of galaxies. We review several important aspects of cluster weak gravitational lensing together with recent advances in weak lensing techniques for measuring cluster lensing profiles and constraining cluster structure parameters.
arxiv +4 more sources
Instrumental systematics and weak gravitational lensing [PDF]
Journal of Instrumentation, 2015 We present a pedagogical review of the weak gravitational lensing measurement process and its connection to major scientific questions such as dark matter and dark energy. Then we describe common ways of parametrizing systematic errors and understanding how they affect weak lensing measurements.
arxiv +6 more sources
Weak Gravitational Lensing [PDF]
arXivThis chapter provides a comprehensive overview of weak gravitational lensing and its current applications in cosmology. We begin by introducing the fundamental concepts of gravitational lensing and derive the key equations for the deflection angle, lensing potential, convergence, and shear.
Prat, J., Bacon, D.
arxiv +3 more sources
Image simulations for strong and weak gravitational lensing [PDF]
arXiv, 2020 Gravitational lensing has been identified as a powerful tool to address fundamental problems in astrophysics at different scales, ranging from exoplanet identification to dark energy and dark matter characterization in cosmology. Image simulations have played a fundamental role in the realization of the full potential of gravitational lensing by ...
arxiv +5 more sources
Simulations of weak gravitational lensing [PDF]
Astroparticle Physics, 2004 15 pages, 9 figures, Astroparticle Physics in ...
Martin White, Chris Vale
openaire +3 more sources