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Gravitational lensing effects of black hole with conformally coupled scalar hair
European Physical Journal C: Particles and Fields, 2023 In this paper, we investigate the gravitational lensing effects in the weak and strong field limits of a static black hole with conformally coupled scalar field.
Qi Qi +3 more
doaj +1 more source
The GL bibliography and an interactive database [PDF]
, 1999 It is now possible to directly access, via the Internet, a bibliographical database on Gravitational Lensing (GL) literature. The Interactive Gravitational Lensing Bibliography (IGLB) totalizes more than 2400 titles of published articles in scientific ...
Detal, A. +3 more
core +2 more sources
Reconstruction of Gravitational Lensing Using WMAP 7-Year Data
, 2011 Gravitational lensing by large scale structure introduces non-Gaussianity into the Cosmic Microwave Background and imprints a new observable, which can be used as a cosmological probe. We apply a four-point estimator to the Wilkinson Microwave Anisotropy
Feng, Chang +3 more
core +1 more source
Intrinsic Galaxy Alignments and Weak Gravitational Lensing [PDF]
, 2001 Gravitational lensing causes background galaxy images to become aligned, and the statistical characteristics of the image alignments can then be used to constrain the power spectrum of mass fluctuations.
Heavens, A. F.
core +3 more sources
A dearth of dark matter in strong gravitational lenses [PDF]
, 2013 I show that the lensing masses of the SLACS sample of strong gravitational lenses are consistent with the stellar masses determined from population synthesis models using the Salpeter IMF. This is true in the context of both General Relativity and modified Newtonian dynamics, and is in agreement with the expectation of MOND that there should be little ...
arxiv +1 more source
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
Cosmological model differentiation through weak gravitational lensing [PDF]
, 2002 We investigate the potential of weak gravitational lensing maps to differentiate between distinct cosmological models, considering cosmic variance due to a limited map extension and the presence of noise.
Antonio C. C. Guimarães +27 more
core +3 more sources
Lectures on Gravitational Lensing [PDF]
arXiv, 1996 These lectures give an introduction to Gravitational Lensing. We discuss lensing by point masses, lensing by galaxies, and lensing by clusters and larger-scale structures in the Universe. The relevant theory is developed and applications to astrophysical problems are discussed.
arxiv
Plasma lensing in comparison to gravitational lensing -- Formalism and degeneracies [PDF]
arXiv, 2020 Gravitational and plasma lensing share the same mathematical formalism in the limit of geometrical optics. Both phenomena can be effectively described by a projected, two-dimensional deflection potential whose gradient causes an instantaneous light deflection in a single, thin lens plane.
arxiv
Dark Matter Distinguished by Skewed Microlensing in the “Dragon Arc”
The Astrophysical Journal LettersMany microlensed stars discovered by JWST closely follow the winding critical curve of A370 along the “Dragon Arc” with m _AB > 26.5, which we show comprises asymptotic giant branch stars microlensed by the observed level of diffuse cluster stars ...
Tom Broadhurst +21 more
doaj +1 more source