Results 31 to 40 of about 34,012 (161)
Global properties of gravitational lens maps in a Lorentzian manifold setting [PDF]
, 2000 In a general-relativistic spacetime (Lorentzian manifold), gravitational lensing can be characterized by a lens map, in analogy to the lens map of the quasi-Newtonian approximation formalism.
Perlick, Volker
core +3 more sources
Geochemistry, Geophysics, Geosystems, Volume 24, Issue 3, March 2023., 2023 Abstract Giant volcanic eruptions have the potential to overturn civilizations. Yet, the driving mechanism and timescale over which batholithic magma reservoirs transition from non‐eruptible crystal mush to mobile melt‐dominated stages and our capacity to detect a pending super‐eruption remain obscure.
G. Weber, J. Blundy, D. Bevan
wiley +1 more source
IS THERE A DISTINCTIVE QUANTUM THEOLOGY?
Zygon®, Volume 58, Issue 1, Page 265-284, March 2023., 2023 Abstract Quantum mechanics (QM) is a favorite area of physics to feature in “science and religion” discussions. We argue that this is at least partly because the arcane results of QM can be deployed to make big theological claims by the linguistic sleight of hand of “register switching”—sliding imperceptibly from technical into everyday language using ...
Wilson C. K. Poon, Tom C. B. McLeish
wiley +1 more source
Parameters estimation and strong gravitational lensing of nonsingular Kerr-Sen black holes [PDF]
, 2020 The recent time witnessed a surge of interest in strong gravitational lensing by black holes is due to the Event Horizon Telescope (EHT) results, which suggest comparing the black hole lensing in both general relativity and heterotic string theory.
Sushant G. Ghosh +2 more
semanticscholar +1 more source
Journal of Geophysical Research: Atmospheres, Volume 127, Issue 10, 27 May 2022., 2022 Abstract Stratospheric injections of carbonaceous aerosols and combustion gases by extreme wildfires have become increasingly common. Recent “megafires,” particularly large and intense fires, delivered particulate burdens to the lower stratosphere comparable to those of moderate volcanic eruptions.
Gennaro D’Angelo +4 more
wiley +1 more source
Gravitational lensing by charged black hole in regularized 4D Einstein–Gauss–Bonnet gravity
European Physical Journal C: Particles and Fields, 2020 Among the higher curvature gravities, the most extensively studied theory is the so-called Einstein–Gauss–Bonnet (EGB) gravity, whose Lagrangian contains Einstein term with the GB combination of quadratic curvature terms, and the GB term yields ...
Rahul Kumar +2 more
doaj +1 more source
Multiple imaging by gravitational waves [PDF]
, 1997 Gravitational waves act like lenses for the light propagating through them. This phenomenon is described using the vector formalism employed for ordinary gravitational lenses, which was proved to be applicable also to a non-stationary spacetime, with the
Braginsky V. B. +9 more
core +3 more sources
World society and field theory: The infiltration of development into humanitarianism
The British Journal of Sociology, Volume 73, Issue 2, Page 402-420, March 2022., 2022 Abstract Differentiated modern society is commonly viewed as an aggregation of various fields, yet the question of their boundaries is often a silent one. This article builds on this lacuna to argue that cultural globalization should be acknowledged and added to the equation.
Nir Rotem
wiley +1 more source
A Hamiltonian, post-Born, three-dimensional, on-the-fly ray tracing algorithm for gravitational lensing [PDF]
Journal of Cosmology and Astroparticle PhysicsThe analyses of the next generation cosmological surveys demand an accurate, efficient, and differentiable method for simulating the universe and its observables across cosmological volumes. We present Hamiltonian ray tracing (HRT) — the first post-Born (
Alana J Zhou +6 more
semanticscholar +1 more source
Gravitational lensing and modified Newtonian dynamics [PDF]
, 2001 Gravitational lensing is most often used as a tool to investigate the distribution of (dark) matter in the universe, but, if the mass distribution is known a priori, it becomes, at least in principle, a powerful probe of gravity itself.
Daniel J. Mortlock +3 more
core +8 more sources