Results 81 to 90 of about 340,378 (352)
Formation and growth of multiple, distinct ice lenses in frost heave
International Journal for Numerical and Analytical Methods in Geomechanics, Volume 47, Issue 1, Page 82-105, January 2023., 2023 Abstract This paper presents a fully coupled thermo‐hydro‐mechanical (THM) model which simulates frost heave in fully saturated soils. The model is able to simulate the formation and growth of multiple distinct ice lenses. The basic equations of the system were derived using the continuum theory of mixtures, nonequilibrium thermodynamics, and fracture ...
Hao Gao +5 more
wiley +1 more source
Weak Gravitational Lensing [PDF]
, 2005 This review forms the Weak Lensing part of the Saas-Fee Advanced Course on Gravitational Lensing. It describes the basicsm applications and results of weak lensing. Contents: (1) Introduction (2) The principles of weak gravitational lensing (3) Observational issues and challenges (4) Clusters of galaxies: Introduction, and strong lensing (5) Mass ...
arxiv +1 more source
Strong gravitational lensing’s ‘external shear’ is not shear [PDF]
Monthly Notices of the Royal Astronomical SocietyABSTRACT The distribution of mass in galaxy-scale strong gravitational lenses is often modelled as an elliptical power-law plus ‘external shear’, which notionally accounts for neighbouring galaxies and cosmic shear along our line of sight.
Amy Etherington +22 more
openaire +6 more sources
Strong gravitational lensing of gravitational waves in Einstein Telescope [PDF]
Journal of Cosmology and Astroparticle Physics, 2013 13 pages, 4 figures, accepted to ...
Aleksandra Piórkowska +2 more
openaire +3 more sources
Stellar prospects for FRB gravitational lensing [PDF]
, 2022 Gravitational lensing of fast radio bursts (FRBs) offers an exciting avenue for several cosmological applications. However, it is not yet clear how many such events future surveys will detect nor how to optimally find them. We use the known properties of FRBs to forecast detection rates of gravitational lensing on delay timescales from microseconds to ...
arxiv +1 more source
Searching for Strong Gravitational Lenses
Space Science ReviewsAbstractStrong gravitational lenses provide unique laboratories for cosmological and astrophysical investigations, but they must first be discovered – a task that can be met with significant contamination by other astrophysical objects and asterisms.
Cameron Lemon +11 more
openaire +6 more sources
Strong Lensing of Gravitational Waves as Seen by LISA [PDF]
Physical Review Letters, 2010 We discuss strong gravitational lensing of gravitational waves from merging of massive black hole binaries in the context of the LISA mission. Detection of multiple events would provide invaluable information on competing theories of gravity, evolution and formation of structures and, with complementary observations, constraints on H_0 and other ...
Mauro Sereno +5 more
openaire +3 more sources
Strong-lensing of Gravitational Waves by Galaxy Clusters [PDF]
Proceedings of the International Astronomical Union, 2017 AbstractDiscovery of strongly-lensed gravitational wave (GW) sources will unveil binary compact objects at higher redshifts and lower intrinsic luminosities than is possible without lensing. Such systems will yield unprecedented constraints on the mass distribution in galaxy clusters, measurements of the polarization of GWs, tests of General Relativity,
Christopher P. L. Berry +12 more
openaire +7 more sources
Gravitational lensing of gravitational waves: wave nature and prospects for detection [PDF]
, 2019 We discuss the gravitational lensing of gravitational wave signals from coalescing binaries. We delineate the regime where wave effects are significant from the regime where geometric limit can be used. Further, we focus on the effect of micro-lensing and the combined effect of strong lensing and micro-lensing.
arxiv +1 more source
Time delay of photons coupled to Weyl tensor in a regular phantom black hole
European Physical Journal C: Particles and Fields, 2020 Time delay of the photons coupled to the Weyl tensor in a regular phantom black hole is investigated in both weak and strong deflection gravitational lensing. We find that the time delay in the weak deflection lensing strongly depends on the phantom hair
Xu Lu, Yi Xie
doaj +1 more source