Results 81 to 90 of about 64,982 (304)

Weak lensing of the CMB

open access: yes, 2009
The cosmic microwave background (CMB) represents a unique source for the study of gravitational lensing. It is extended across the entire sky, partially polarized, located at the extreme distance of z=1100, and is thought to have the simple, underlying ...
Challinor, Anthony   +2 more
core   +1 more source

Current status of weak gravitational lensing

open access: yesNew 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
Henk Hoekstra   +3 more
openaire   +3 more sources

Weak gravitational lensing with CO galaxies [PDF]

open access: yes, 2018
Optical weak lensing surveys have become a powerful tool for precision cosmology, but remain subject to systematic effects that can severely bias cosmological parameter estimates if not carefully removed. We discuss the possibility of performing complementary weak lensing surveys at radio/microwave frequencies, using detections of CO-emitting galaxies ...
Bull, P, Harrison, I, Huff, E
openaire   +2 more sources

3D weak gravitational lensing of the CMB and galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
Accepted to ...
Kitching, TD, Heavens, AF, Das, S
openaire   +5 more sources

Biased Dark Energy Constraints from Neglecting Reduced Shear in Weak Lensing Surveys [PDF]

open access: yes, 2008
The weak gravitational lensing of distant galaxies by large-scale structure is expected to become a powerful probe of dark energy. By measuring the ellipticities of large numbers of background galaxies, the subtle gravitational distortion called "cosmic ...
Shapiro, Charles
core   +2 more sources

A Methodological Framework to Study Change in Team Cognition Under the Dynamical Hypothesis

open access: yesTopics in Cognitive Science, EarlyView., 2023
Abstract The dynamical hypothesis claims that cognitive systems, such as teams, are dynamical systems (i.e., an interdependent collection of individuals and their technology that change together over time). Following this hypothesis, team researchers have adopted dynamical approaches to better understand the team cognitive processes and states that ...
Kyana van Eijndhoven   +3 more
wiley   +1 more source

GLASS: Generator for Large Scale Structure

open access: yesThe Open Journal of Astrophysics, 2023
We present GLASS, the Generator for Large Scale Structure, a new code for the simulation of galaxy surveys for cosmology, which iteratively builds a light cone with matter, galaxies, and weak gravitational lensing signals as a sequence of nested shells ...
Nicolas Tessore   +4 more
doaj   +1 more source

Inverted PAINT for Material‐Specific Super‐Resolution Fluorescence Imaging of Semiconductors

open access: yesAdvanced Materials, EarlyView.
This study presents Inverted PAINT, a label‐free super‐resolution fluorescence imaging method optimized for thick and non‐transparent semiconductor materials. By employing electrostatic dye–surface interactions in an inverted geometry, the technique enables material‐specific, multicolor, and 3D nanoscale imaging, with applications in semiconductor ...
Uidon Jeong, Doory Kim
wiley   +1 more source

Gravitational lensing phenomena of Ellis-Bronnikov-Morris-Thorne wormhole with global monopole and cosmic string

open access: yesPhysics Letters B
In this paper, we theoretically investigate gravitational lensing within the space-time framework of traversable wormholes, focusing on the combined effects of a global monopole and a cosmic string.
Faizuddin Ahmed   +2 more
doaj   +1 more source

Probing a regular non-minimal Einstein-Yang-Mills black hole with gravitational lensings

open access: yesPhysics Letters B, 2019
We investigate weak and strong deflection gravitational lensings of the regular black hole predicted by a non-minimal Einstein–Yang–Mills theory. We find that its weak deflection lensing is the same as a Reissner–Nordström black hole's.
Feng-Yuan Liu   +3 more
doaj   +1 more source

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