Results 181 to 190 of about 61,905 (297)

Galaxy–Galaxy Strong Lensing with U-Net (GGSL-UNet). I. Extracting Two-dimensional Information from Multiband Images in Ground and Space Observations

The Astrophysical Journal Supplement Series
We present a novel deep learning method to separately extract the two-dimensional flux information of the foreground galaxy (deflector) and background system (source) of galaxy–galaxy strong-lensing events using U-Net (GGSL-UNet for short). In particular,
Fucheng Zhong, Ruibiao Luo, Nicola R. Napolitano, Crescenzo Tortora, Rui Li, Xincheng Zhu, Valerio Busillo, L. V. E. Koopmans, Giuseppe Longo   +8 more
doaj   +1 more source

Gravitational lensing from compact bodies: Analytical results for strong and weak deflection limits [PDF]

, 2007
Paolo Amore, M. Cervantes, A. De Pace, Francisco M. Fernández   +3 more
openalex   +1 more source

The simplicity of physical laws

Noûs, EarlyView.
Abstract Physical laws are strikingly simple, yet there is no a priori reason for them to be so. I propose that nomic realists—Humeans and non‐Humeans—should recognize simplicity as a fundamental epistemic guide for discovering and evaluating candidate physical laws.
Eddy Keming Chen
wiley   +1 more source

QSO Strong Gravitational Lensing and the Detection of Dark Halos [PDF]

, 2007
Andrea V. Macciò
openalex   +1 more source

Interbrain Synchrony Mitigates Extremism Within Echo Chambers

Annals of the New York Academy of Sciences, EarlyView.
People engage with content that aligns with their pre‐existing attitudes, forming echo chambers and amplifying extremism. Participants engaged in a moral judgment task where they privately rated and discussed the appropriateness of actions taken to resolve moral dilemmas. Brain activity was scanned using fNIRS.
Aial Sobeh, Tomer Marcos Vakrat, Simone Shamay‐Tsoory   +2 more
wiley   +1 more source

The gravitational bending of acoustic Schwarzschild black hole. [PDF]

Eur Phys J C Part Fields, 2023
Qiao CK, Zhou M.
europepmc   +1 more source

Cold Dark Matter and Strong Gravitational Lensing: Concord or Conflict?

, 2001
Charles R. Keeton
openalex   +1 more source

A Three‐Stage Model of the Maturation of Nascent Policy Subsystems Toward Stable Advocacy Coalitions, With Evidence From the UK's Response to COVID‐19

Policy Studies Journal, EarlyView.
ABSTRACT Policy subsystems are comprised of competing advocacy coalitions, in which public and private political actors with shared belief systems learn from each other and coordinate their strategies in the pursuit of influencing policy making in their favor.
Kristijan Garic, Philip Leifeld
wiley   +1 more source

TEMPLATES: Direct Abundance Constraints for Two Lensed Lyman-break Galaxies

The Astrophysical Journal
Using integrated spectra for two gravitationally lensed galaxies from the JWST TEMPLATES Early Release Science program, we analyze faint auroral lines, which provide direct measurements of the gas-phase chemical abundance.
Brian Welch, Grace M. Olivier, Taylor A. Hutchison, Jane R. Rigby, Danielle A. Berg, Manuel Aravena, Matthew B. Bayliss, Jack E. Birkin, Scott C. Chapman, Håkon Dahle, Michael D. Gladders, Gourav Khullar, Keunho J. Kim, Guillaume Mahler, Matthew A. Malkan, Desika Narayanan, Kedar A. Phadke, Keren Sharon, J. D. T. Smith, Manuel Solimano, Justin S. Spilker, Joaquin D. Vieira, David Vizgan   +22 more
doaj   +1 more source

Embracing the politics of transformation: Policy action as “battle‐settlement events”

Review of Policy Research, EarlyView.
Abstract Societal transformations for addressing climate change are intensely contested and at risk of resistance and backlash to ambitious policy action. But they are frequently modeled through heuristics such as S‐curves which abstract from such conflicts, assuming increasing returns to scale as a driver of transformations.
James Patterson, Matthew Paterson
wiley   +1 more source