Results 31 to 40 of about 184 (166)
The Astrophysical Journal, 2022 Abstract We study the gravitational lensing influence of a massive object in a dark matter halo, using a simple model of a point mass embedded in a spherical Navarro–Frenk–White halo. Building on the analysis of critical curves and caustics presented in the first part of this work, we proceed to explore the geometry of images formed by ...
Michal Karamazov, David Heyrovský
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The Astrophysical Journal, 2023 Based on independent shear measurements using the Dark Energy Camera Legacy Survey/DR8 imaging data, we measure the weak lensing signals around isolated central galaxies (ICGs) from Sloan Digital Sky Survey/DR7 at z ∼ 0.1.
Pedro Alonso +8 more
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SELF-CALIBRATION OF GRAVITATIONAL SHEAR-GALAXY INTRINSIC ELLIPTICITY CORRELATION IN WEAK LENSING SURVEYS [PDF]
The Astrophysical Journal, 2010 14 pages, 4 figures. Heavily expanded version. No changes in major results and conclusions.
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The imprint of f(R) gravity on weak gravitational lensing – II. Information content in cosmic shear statistics [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 17 pages, 6 figures, 5 tables, accepted for publication in ...
Shirasaki, Masato +3 more
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Characterizing the shapes of galaxy clusters using moments of the gravitational lensing shear
Astroparticle Physics, 2005 17 pages, 6 figures; added references, corrected typos, matches published ...
Schulz, A. E. +2 more
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Particle dark matter searches in the anisotropic sky
Frontiers in Physics, 2014 Anisotropies in the electromagnetic emission produced by dark matter annihilation or decay in the extragalactic sky are a recent tool in the quest for a particle dark matter evidence.
Nicolao eFornengo +3 more
doaj +1 more source
Weak gravitational lensing in the standard cold dark matter model, using an algorithm for three-dimensional shear [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 We investigate the effects of weak gravitational lensing in the standard Cold Dark Matter cosmology, using an algorithm which evaluates the shear in three dimensions. The algorithm has the advantage of variable softening for the particles, and our method allows the appropriate angular diameter distances to be applied to every evaluation location within
Barber, Andrew J. +2 more
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The spread of non‐native species
Biological Reviews, EarlyView.ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock +16 more
wiley +1 more source
COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses [PDF]
Astronomy & Astrophysics, 2012 Accepted for publication in Astronomy and Astrophysics abridged ...
Sluse, Dominique +4 more
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Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit
Contributions to Plasma Physics, EarlyView.ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik +3 more
wiley +1 more source