Results 61 to 70 of about 757 (229)

Star Formation under a Cosmic Microscope: Highly Magnified z = 11 Galaxy behind the Bullet Cluster

The Astrophysical Journal Letters
We present measurements of stellar population properties of a newly discovered, spectroscopically confirmed, $z=11.1{0}_{-0.26}^{+0.11}$ , gravitationally lensed galaxy, using JWST NIRSpec PRISM spectroscopy and NIRCam imaging.
Maruša Bradač, Jon Judež, Chris Willott, Gregor Rihtaršic, Nicholas S. Martis, Anishya Harshan, Giordano Felicioni, Yoshihisa Asada, Guillaume Desprez, Douglas Clowe, Anthony H. Gonzalez, Christine Jones, Brian C. Lemaux, Maxim Markevitch, Vladan Markov, Lamiya Mowla, Gaël Noirot, Annika H. G. Peter, Andrew Robertson, Ghassan T. E. Sarrouh, Marcin Sawicki, Tim Schrabback, Roberta Tripodi   +22 more
doaj   +1 more source

Strong Gravitational Lensing: Bright Galaxies & Lost Dark-Matter [PDF]

Proceedings of the International Astronomical Union, 2007
AbstractGravitational lensing and stellar dynamics provide two complementary methods to probe the smooth and clumpy stellar and dark-matter mass distribution in early-type galaxies, currently already over a range of two orders of magnitude in virial mass, more than ten orders of magnidude in dynamic mass range in each galaxy (i.e.
openaire   +2 more sources

Strong gravitational lensing by spiral galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 1998
6 pages, 2 single-panel figures, 2 double-panel figures, one six-panel figure.
Moeller, Ole, Blain, A. W.
openaire   +2 more sources

Data‐Driven Pathways to Circular E‐Waste Management

Business Strategy and the Environment, EarlyView.
ABSTRACT As the volume and complexity of electronic waste grow worldwide, regional and subnational systems are increasingly tasked with managing the environmental, economic, and social challenges of circular resource recovery. This paper focuses on Canada's e‐waste sector to examine how circular economy (ce) principles can be integrated into regional ...
Saidia Ali, Samin Sahaaban‐Nejad, Farid Shirazi, Nick Hajli   +3 more
wiley   +1 more source

An Opacity-free Test of the Cosmic Distance Duality Relation Using Strongly Lensed Gravitational-wave Signals with Space-based Detector Networks

The Astrophysical Journal
The cosmic distance duality relation (CDDR), expressed as d _L ( z ) = (1 +  z ) ^2 D _A ( z ), is a fundamental relation in modern cosmology. In this work, we apply a method to test the CDDR using simulated strongly lensed gravitational-wave (SLGW ...
Yong Yuan, Minghui Du, Benyang Zhu, Xin-Yi Lin, Wen-Fan Feng, Peng Xu, Xilong Fan   +6 more
doaj   +1 more source

Whose Sustainability Counts? Board Governance, ESG Ratings, and Sustainable Development Goals: Evidence on the ESG–SDG Wedge

Business Strategy and the Environment, EarlyView.
ABSTRACT Institutional investors increasingly rely on ESG ratings to evaluate financially material sustainability risks, while governments promote corporate alignment with the United Nations Sustainable Development Goals (SDGs). Because these frameworks differ substantially in capital market salience and monitoring intensity, board oversight may not ...
Mohamed Hegazy, Diego Prior, Mahmoud Zarea   +2 more
wiley   +1 more source

Quasar Milli-lensing and Cold Dark Matter (TNG50) Subhaloes. I. Image Splitting

The Astrophysical Journal
We use numerical mass density profiles from the TNG50 simulation to study the impact of gravitational milli-lensing by dark matter subhaloes on the images of lensed quasars.
E. Mediavilla, J. Jiménez-Vicente, F. M. Heinze, J. Martín Camalich   +3 more
doaj   +1 more source

The Longest Delay: A 14.5 yr Campaign to Determine the Third Time Delay in the Lensing Cluster SDSS J1004+4112

The Astrophysical Journal, 2022
We present new light curves for the four bright images of the five image cluster-lensed quasar gravitational lens system SDSS J1004+4112. The light curves span 14.5 yr and allow the measurement of the time delay between the trailing bright quasar image D
J. A. Muñoz, C. S. Kochanek, J. Fohlmeister, J. Wambsganss, E. Falco, R. Forés-Toribio   +5 more
doaj   +1 more source

Strong Gravitational Lensing Parameter Estimation with Vision Transformer

, 2023
Quantifying the parameters and corresponding uncertainties of hundreds of strongly lensed quasar systems holds the key to resolving one of the most important scientific questions: the Hubble constant ($H_{0}$) tension. The commonly used Markov chain Monte Carlo (MCMC) method has been too time-consuming to achieve this goal, yet recent work has shown ...
Kuan-Wei Huang, Geoff Chih-Fan Chen, Po-Wen Chang, Sheng-Chieh Lin, Chia-Jung Hsu, Vishal Thengane, Joshua Yao-Yu Lin   +6 more
openaire   +2 more sources

From Confusion to Clarity: A Multi‐Stage Process Framework for Understanding Consumer Confusion

Journal of Consumer Behaviour, EarlyView.
ABSTRACT This paper reconceptualizes consumer confusion as a multi‐stage temporal process rather than a static outcome, addressing theoretical fragmentation in existing antecedent‐consequence models. By integrating cognitive appraisal, contextual amplification, and adaptive coping within a unified framework, we explain how confusion unfolds rather than
Fatih Celik, Erdogan Koc
wiley   +1 more source