Results 61 to 70 of about 3,543 (266)
Detecting Dark Objects with Plasma Microlensing by Their Gravitational Wakes
The Astrophysical JournalA moving mass makes a gravitational wake in the partially ionized interstellar medium, which acts as a lens for radio-frequency light. Consequently, plasma microlensing could complement gravitational microlensing in the search for invisible massive ...
M. Sten Delos
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Revisiting a Quasar Microlensing Event Towards AGN J1249+3449
UniverseThe gravitational wave event GW190521 seems to be the only BH merger event possibly correlated with an electromagnetic counterpart, which appeared about 34 days after the GW event.
Mario Cazzolla +3 more
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The quadrupole gravitational lens
The Astrophysical Journal, 1987 An asymmetric lens made of a spherically symmetric galaxy and a quadrupole tidal part allows a very simple pictorial examination of the multiplicity and positions of the images, for any mass density profile. The lens equations can be reduced to one equation in one variable.
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Business Strategy and the Environment, EarlyView.ABSTRACT This integrative review explores the evolution of sustainability in supply chain management and positions regenerative supply chain within the strong sustainability paradigm. It adopts a transdisciplinary approach, unfolding in two parallel stages.
Abhijeet Tewary +2 more
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European Physical Journal C: Particles and FieldsIn this manuscript, we provide a comprehensive study of gravitational lensing by dark compact objects predicted by modified gravity (MOG) based on the scalar–vector–tensor action, with the aim of providing new insights into the nature of gravitational ...
Nagina Rehman +3 more
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Auto-detection of strong gravitational lenses using convolutional neural networks
Emergent Scientist, 2018 We propose a method for the automated detection of strong galaxy-galaxy gravitational lenses in images, utilising a convolutional neural network (CNN) trained on 210 000 simulated galaxy-galaxy lens and non-lens images.
Pearson James +2 more
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Data‐Driven Pathways to Circular E‐Waste Management
Business Strategy and the Environment, EarlyView.ABSTRACT As the volume and complexity of electronic waste grow worldwide, regional and subnational systems are increasingly tasked with managing the environmental, economic, and social challenges of circular resource recovery. This paper focuses on Canada's e‐waste sector to examine how circular economy (ce) principles can be integrated into regional ...
Saidia Ali +3 more
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Inferring Properties of Dark Galactic Halos Using Strongly Lensed Gravitational Waves
The Astrophysical JournalGravitational waves (GWs) can be deflected, similarly to electromagnetic (EM) waves, by massive objects through the phenomenon of gravitational lensing .
Eungwang Seo +2 more
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Magnetised black hole as a gravitational lens [PDF]
Physics Letters B, 2007 5 pages, 2 figures, to be published in Phys. Lett.
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Business Strategy and the Environment, EarlyView.ABSTRACT Institutional investors increasingly rely on ESG ratings to evaluate financially material sustainability risks, while governments promote corporate alignment with the United Nations Sustainable Development Goals (SDGs). Because these frameworks differ substantially in capital market salience and monitoring intensity, board oversight may not ...
Mohamed Hegazy +2 more
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