Results 151 to 160 of about 207,712 (289)
European Physical Journal C: Particles and FieldsIn this work, gravitational lensing in the weak and strong field limits is investigated for black hole spacetime within the framework of Hu–Sawicki f(R) gravity. We employ the Ishihara et al.
Gayatri Mohan +2 more
doaj +1 more source
Imaging the 3-D cosmological mass distribution with weak gravitational lensing [PDF]
arXiv, 2001 I show how weak gravitational lensing can be used to image the 3-D mass distribution in the Universe. An inverse relation to the lensing equation, relating the lensing potential evaluated at each source to the full 3-D Newtonian potential, is derived.
arxiv
Indefinitely Flat Circular Velocities and the Baryonic Tully–Fisher Relation from Weak Lensing [PDF]
Astrophysical Journal LettersWe use a new deprojection formula to infer the gravitational potential around isolated galaxies from weak gravitational lensing. The results imply circular velocity curves that remain flat for hundreds of kiloparsecs, greatly extending the classic result
Tobias Mistele +4 more
semanticscholar +1 more source
Bulletin of Latin American Research, EarlyView.Godfrey Bingley was a British industrialist who took up geology, photography and travel in the 1880s. His photographs are housed at the University of Leeds, where he worked with its Chair of Geology. This article analyses the archive's projection of the imperial geological imaginary that emanated from Britain and extended to the Americas.
Rebecca Jarman
wiley +1 more source
Mapping Dark Matter in Galaxy Clusters: Gravitational Lensing & Numerical Simulations [PDF]
arXiv, 2008 The different regimes of gravitational lensing constitutes an interesting tool in order to map the mass distribution in galaxy clusters on different scales. In this proceedings article, I review some work I have performed on this topic. More precisely, I will focus on : (i) galaxy scale substructures, using weak galaxy-galaxy lensing in order to study ...
arxiv
The general theory of secondary weak gravitational lensing [PDF]
Journal of Cosmology and Astroparticle Physics, 2015 Weak gravitational lensing is normally assumed to have only two principle effects: a magnification of a source and a distortion of the sources shape in the form of a shear. However, further distortions are actually present owing to changes in the gravitational field across the scale of the ray bundle of light propagating to us, resulting in the ...
openaire +4 more sources
Boreas, EarlyView.Here we report on the properties of a glacial sediment succession including various till facies and some subglacial meltwater deposits from a site in central Poland close to the outermost extent of the Scandinavian Ice Sheet during the last glaciation.
Piotr Hermanowski, Jan A. Piotrowski
wiley +1 more source
The DCIDE framework: systematic investigation of evolutionary hypotheses, exemplified with autism
Biological Reviews, EarlyView.ABSTRACT Evolutionary explanations of mental disorders are a longstanding aim of evolutionary psychiatry, but have suffered from complexities including within‐disorder heterogeneity and environmental effects of contemporary societies obscuring possible ancestral functions.
Adam D. Hunt, Adrian V. Jaeggi
wiley +1 more source
The Astrophysical JournalWe present a new high-resolution free-form mass model of A2744 that combines both weak-lensing (WL) and strong-lensing (SL) data sets from JWST. The SL data set comprises 286 multiple images, presenting the most extensive SL constraint to date for a ...
Sangjun Cha +4 more
doaj +1 more source
Lect.NotesPhys.608:55-95,2002, 2002 Weak lensing review at the first-year graduate student level.
arxiv