Results 121 to 130 of about 34,013 (306)

Cosmology using Strong Gravitational Lensing

open access: yes, 2023
The light we observe from distant astrophysical objects including supernovae and quasars allows us to determine large distances in terms of a cosmological model. Despite the success of the standard cosmological model in fitting the data, there remains no underlying explanation for the accelerated expansion and dark matter.
openaire   +1 more source

Observable properties of strong gravitational lenses [PDF]

open access: yesAstronomy & Astrophysics, 2016
3 pages, 1 figure, matches published ...
openaire   +3 more sources

The Export and Financial Effects of Immigrant Team Composition in International New Ventures

open access: yesThunderbird International Business Review, EarlyView.
ABSTRACT Immigrant‐owned international new ventures (INVs) often partner with non‐immigrant entrepreneurs as co‐owners. Their mixed immigrant‐nonimmigrant teams could engender varied perspectives. But it is unclear whether such cognitive diversity improves their international strategy and performance.
Horatio M. Morgan, Sui Sui
wiley   +1 more source

Residual Test to Search for Microlensing Signatures in Strongly Lensed Gravitational Wave Signals

open access: yesThe Astrophysical Journal
When a gravitational wave signal encounters a massive object, such as a galaxy or galaxy cluster, it undergoes strong gravitational lensing, producing multiple copies of the original signal.
Eungwang Seo   +5 more
doaj   +1 more source

Microlensing-Based Studies of the Unresolved Structure of AGNs and the Composition of Lensing Galaxies

open access: yesOpen Astronomy, 2011
Multiple images of quasars formed by gravitational lensing are typically seen through the lensing galaxy. The granulation of the galaxy in stars or other compact objects induces local (‘microscopic’) but strong fluctuations in the gravitational potential
Gradolph Teresa Mediavilla   +2 more
doaj   +1 more source

Nonsingular density profiles of dark matter halos and Strong gravitational lensing

open access: yes, 2005
We use the statistics of strong gravitational lenses to investigate whether mass profiles with a flat density core are supported. The probability for lensing by halos modeled by a nonsingular truncated isothermal sphere (NTIS) with image separations ...
Bartelmann M.   +9 more
core   +3 more sources

Vitess 3.8: a modernized framework for Monte Carlo neutron tracing simulations

open access: yesJournal of Applied Crystallography, EarlyView.
VITESS 3.8 introduces modernized neutron‐source modeling with new artificial‐intelligence‐based and KDSource modules, plus expanded component support including a prism module and NCrystal‐integrated sample module. It also delivers major upgrades to existing modules and multiple new features, advancing the simulation framework.VITESS is a modular Monte ...
José Ignacio Robledo   +5 more
wiley   +1 more source

On the cosmic distance duality relation and strong gravitational lens power law density profile [PDF]

open access: green, 2021
F. S. Lima   +3 more
openalex   +1 more source

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