Results 101 to 110 of about 42,790 (257)

Weak Gravitational Lensing—The Need for Surveys [PDF]

Symposium - International Astronomical Union, 1997
Light rays from distant sources are deflected if they pass near an intervening matter inhomogeneity. This gravitational lens effect is responsible for the well-established lens systems like multiple-imaged QSOs, (radio) ‘Einstein’ rings, the giant luminous arcs in clusters of galaxies, and the flux variations of stars in the LMC and the Galactic bulge ...
openaire   +1 more source

Periglacial Puzzles: Unravelling Environmental Controls on Alpine Solifluction Lobe Dimensions and Shape

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Freeze–thaw processes cause periglacial creep (otherwise known as solifluction) which forms solifluction lobes. These are lobate features characterized by a steep riser (front) and a smooth tread (body). Despite the widespread occurrence of these lobes, the controls on their morphometry remain poorly understood. Research into solifluction lobe
Jil S. van Etten, Jana Eichel, Daniel Draebing   +2 more
wiley   +1 more source

Epistemic diversity and the politics of knowledge in plant disease management: Insights from the Xylella fastidiosa epidemic in southern Italy

PLANTS, PEOPLE, PLANET, EarlyView.
Xylella fastidiosa is a major plant pathogen affecting crops such as grapes, citrus, almonds, and olives, with potentially severe consequences for agricultural production and rural livelihoods worldwide. This paper examines the conflict around the management of the X. fastidiosa outbreak affecting olive trees in southern Italy.
Fabio Gatti, David Ludwig, Phil Macnaghten   +2 more
wiley   +1 more source

Galaxy-Galaxy weak gravitational lensing in cluster environment

, 2012
An investigation was carried out into the phenomenon of galaxy-galaxy weak lensing in a sample of 10 X-ray selected galaxy clusters. Using high resolution Hubble Space Telescope imaging data and mathematical techniques described within, the feasibility ...
James, Timothy, John
core  

Gravitational lensing effect of black holes in effective quantum gravity [PDF]

Physical Review D
In the present work, we investigate the gravitational lensing effects of two quantum-modified black hole models recently proposed in effective quantum gravity.
Haoyu Liu, Meng-Yun Lai, Xiao-Yin Pan, Hyat Huang, De-Cheng Zou   +4 more
semanticscholar   +1 more source

Developing and Testing a Citywide Inclusive Sanitation Financial Tool

Sustainable Development, EarlyView.
ABSTRACT Citywide Inclusive Sanitation (CWIS) represents a paradigm shift in the provision of safely managed sanitation services with a framework of three outcomes—equity, safety and sustainability. There are several sanitation financial tools, but none of these fully address all CWIS outcomes. Citywide Inclusive Sanitation Financial Tool (CWIS‐FiT) is
Camila Silva Franco, Shirish Singh, Albert Ocharo, Timothy Mugo, Prajwal Shrestha, Kabita B. Shrestha, Damir Brdjanovic   +6 more
wiley   +1 more source

Gravitational lensing of a Schwarzschild-like black hole in Kalb-Ramond gravity [PDF]

Physical Review D
In this paper, we investigate the gravitational lensing effect for the Schwarzschild-like black hole spacetime in the background of a Kalb-Ramond (KR) field proposed in [K. Yang et. al., Phys. Rev. D 108 (2023) 124004]. The solution is characterized by a
E. L. Junior, J. T. S. Junior, F. S. Lobo, Manuel E. Rodrigues, D. Rubiera-García, Luís F. Dias da Silva, Henrique A. Vieira   +6 more
semanticscholar   +1 more source

Current status of weak gravitational lensing

New Astronomy Reviews, 2002
Weak gravitational lensing of distant galaxies by foreground structures has proven to be a powerful tool to study the mass distribution in the universe. Nowadays, attention has shifted from clusters of galaxies to the statistical properties of the large scale structures and the halos of (field) galaxies. These applications have become feasible with the
Hoekstra, Henk, Yee, Howard, Gladders, Mike   +2 more
openaire   +2 more sources

Gravity‐Driven Assembly Dynamics of Liquid Metal Microdroplets for Functional Composite Films

Small, EarlyView.
This article presents a new understanding of the gravitational settling of liquid metal microdroplets in polymer resin films. It employs an experimental and analysis platform for quantification of the process‐structure relationships to inform the dynamics of gravity‐driven assembly in soft circuit architectures. ABSTRACT Liquid metal (LM) microdroplets
Brittan T. Wilcox, Ryan C. Rothermel, Michael D. Bartlett   +2 more
wiley   +1 more source

Resource Letter: Gravitational Lensing

, 2012
This Resource Letter provides a guide to a selection of the literature on gravitational lensing and its applications. Journal articles, books, popular articles, and websites are cited for the following topics: foundations of gravitational lensing ...
Philip J. Marshall, Tommaso Treu, Douglas Clowe, Clowe, D, Treu, T, Marshall, Philip, Marshall, PJ   +6 more
core   +1 more source