Results 101 to 110 of about 32,756 (306)
The Astrophysical JournalWe aim to improve cluster lens modeling and source reconstruction by utilizing the full information in giant, caustic-crossing arcs lensed by galaxy clusters.
Lana Eid, Charles R. Keeton
doaj +1 more source
The Roman View of Strong Gravitational Lenses
The Astrophysical JournalAbstract Galaxy–galaxy strong gravitational lenses can constrain dark matter models and the Lambda cold dark matter cosmological paradigm at subgalactic scales. Currently, there is a dearth of images of these rare systems with high signal-to-noise ratio (SNR) and angular resolution. The Nancy Grace Roman Space Telescope (hereafter Roman),
Bryce Wedig +15 more
openaire +3 more sources
Family Firms' Boards: Reflections Based on Theoretical Groundings
Strategic Change, EarlyView.ABSTRACT Boards of Directors is one of the most recurring topics in corporate governance literature. In the family firm realm, Boards of Directors have distinctive features compared to non‐family firms; their functions and activities can differ significantly.
Andrea Sangermano +2 more
wiley +1 more source
Strategic Change, EarlyView.ABSTRACT Start‐up CEOs are usually more aligned with the interests of the venture board compared to CEOs in legacy firms, and therefore it is usual to conclude that the traditional agency problem is lower in ventures. In this article, it is argued that this is only half of the story, and that the agency problem is reversed in early ventures such that ...
Glenn Kristiansen
wiley +1 more source
A Lens Finder Map to Check Claimed High-z Galaxies behind SMACS J0723.3-7327
The Astrophysical JournalThe first science image released by the James Webb Space Telescope (JWST) reveals numerous galaxies in the distant background of the galaxy cluster SMACS J0723.3-7327.
Alex Chow +7 more
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The Distance Duality Relation from Strong Gravitational Lensing
, 2016 Under very general assumptions of metric theory of spacetime, photons traveling along null geodesics and photon number conservation, two observable concepts of cosmic distance, i.e.
Biesiada, Marek +5 more
core +1 more source
Differentiable probabilistic programming for strong gravitational lensing [PDF]
Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019), 2019 8 pages, 5 figures.
openaire +4 more sources
GelCam: Visualizing sinking particle flux via a polyacrylamide gel‐based sediment trap
Limnology and Oceanography: Methods, EarlyView.Abstract Sinking particles play a key role in the biological carbon pump. While previous studies have analyzed particulate carbon flux over timescales of days to years, few have been able to resolve flux variability on shorter, hourly scales at multiple depths simultaneously.
Yixuan Song +4 more
wiley +1 more source
A deconstruction of methods to derive one-point lensing statistics
The Open Journal of AstrophysicsGravitational lensing is a crucial tool for exploring cosmic phenomena, providing insights into galaxy clustering, dark matter, and dark energy. Given the substantial computational demands of $N$-body simulations, approximate methods like $\texttt ...
Viviane Alfradique +5 more
doaj +1 more source
Open 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
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