Results 111 to 120 of about 95,116 (297)

Gravitational Lensing at Millimeter Wavelengths

, 2002
With today's millimeter and submillimeter instruments observers use gravitational lensing mostly as a tool to boost the sensitivity when observing distant objects.
A. Omont, A. Omont, A.C. Fabian, A.J. Barger, A.J. Barger, A.J. Barger, A.P. Rao, A.R. Patnaik, A.R. Patnaik, A.W. Blain, A.W. Blain, A.W. Blain, A.W. Blain, A.W. Blain, C. Borys, C. Ledoux, C. Lidman, C.D. Fassnacht, C.L. Carilli, C.L. Carilli, C.L. Carilli, C.L. Carilli, C.S. Kochanek, C.S. Kochanek, D. Alloin, D. Alloin, D. Alloin, D. Downes, D. Downes, D. Downes, D. Downes, D. Turnshek, D.B. Haarsma, D.B. Sanders, D.B. Sanders, D.B. Sanders, D.H. Hughes, D.H. Hughes, D.J. Fixsen, D.J. Wilner, D.L. Jauncey, D.L. Jauncey, D.T. Frayer, D.T. Frayer, D.T. Frayer, D.W. Hogg, E. Bertin, E. Egami, E.S. Perlman, F. Combes, F. Combes, F. Combes, F. Combes, F. Courbin, G. Lagache, G. Thuma, G.F. Lewis, G.F. Lewis, G.F. Lewis, G.L. Granato, G.L. Granato, H.A. Thronson, I. Smail, I. Smail, I. Smail, I. Smail, I.A.W. Browne, I.F. Mirabel, J. Lehár, J. Lehár, J. Pelt, J. Pelt, J. Pelt, J. Tonry, J.-L. Puget, J.-P. Kneib, J.-P. Kneib, J.A. Högbom, J.E.J. Lovell, J.E.J. Lovell, J.J. Swift, J.M. Mazzarella, J.N. Hewitt, K. Ohta, K.M. Menten, K.M. Menten, L.B. Lucy, L.L.R. Williams, L.V.E. Koopmans, L.V.E. Koopmans, M. Gerin, M. Lerner, M. Polletta, M. Rowan-Robinson, M. Ryle, M. Tsuboi, M.J. Irwin, M.S. Yun, N. Metropolis, N.Z. Scoville, N.Z. Scoville, N.Z. Scoville, P. Andreani, P. Cox, P. Magain, P. Papadopoulos, P. Schneider, P.M. Solomon, P.M. Solomon, P.M. Solomon, P.P. Papadopoulos, P.R. Bevington, R. Barkana, R. Barvainis, R. Barvainis, R. Barvainis, R. Barvainis, R. Gispert, R. Kayser, R. Siebenmorgen, R. Subrahmanyan, R.A. Edelson, R.A. Ibata, R.A. Windhorst, R.H. Hildebrand, R.J. Ivison, R.J. Ivison, R.J. Ivison, R.L. Brown, S. Eales, S. Eales, S. Guilloteau, S. Guilloteau, S. Nair, S. Wallington, S.E. Scott, S.G. Djorgovski, S.J.E. Radford, S.L. Ellison, T. Ommen van, T. Wiklind, T. Wiklind, T. Wiklind, T. Wiklind, T. Wiklind, T. Wiklind, T. Wiklind, T. Wiklind, T. Wiklind, T. Yamada, T.G. Phillips, T.J. Broadhurst, T.R. Lauer, T.T. Takeuchi, W. Xu, W.H. Press   +155 more
core   +3 more sources

Cosmic Equation of state from Strong Gravitational Lensing Systems [PDF]

, 2010
Accelerating expansion of the Universe is a great challenge for both physics and cosmology. In light of lacking the convincing theoretical explanation, an effective description of this phenomenon in terms of cosmic equation of state turns out useful ...
Alcaniz, Aleksandra Piórkowska, Allen, Bar-Kana, Bassett, Beata Malec, Biesiada, Bolton, Buchert, Chevalier, Dalal, Davis, Eisenstein, Ellis, Freedman, Futamase, Grillo, Hinshaw, Keeton, Kochanek, Koopmans, Koopmans, Koopmans, Koopmans, Kowalski, Lazkoz, Linder, Linder, Marek Biesiada, Momcheva, Nesseris, Perlmutter, Riess, Riess, Räsänen, Schneider, Silva, Spergel, Treu, Treu, Treu, Treu, Uzan, Wambsganss, Wiltshire, Wood-Vasey   +45 more
core   +1 more source

The spread of non‐native species

Biological Reviews, EarlyView.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock, Ali Serhan Tarkan, Irene Martín‐Forés, Stelios Katsanevakis, Ronaldo Sousa, Ismael Soto, Andy J. Green, Antonín Kouba, Teun Everts, Victoria Dominguez Almela, Nadège Belouard, Cang Hui, Jamie Bojko, Victor Deklerck, Margaux Boeraeve, Franz Essl, J. Robert Britton   +16 more
wiley   +1 more source

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

Topics 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, Travis J. Wiltshire, Elwira A. Hałgas, Josette M. P. Gevers   +3 more
wiley   +1 more source

Witt’s Hyperbola Is Both Predicted and Observed to Pass Close to the Lensing Galaxies in Quadruple Quasars

The Astrophysical Journal
When a rectangular hyperbola is constructed from the image positions of a quadruply lensed quasar, as proposed by Witt, it passes very close to the lensing galaxy. The median measured perpendicular offset between the observed light center of the lens and
Paul L. Schechter, Richard Luhtaru
doaj   +1 more source

Implications from Simulated Strong Gravitational Lensing Systems: Constraining Cosmological Parameters Using Gaussian Processes [PDF]

Astrophysical Journal, 2019
Strong gravitational lensing systems (SGL) encode cosmology information in source/lens distance ratios as , which can be used to precisely constrain cosmological parameters.
Tonghua Liu, Shuo Cao, Jia Zhang, S. Geng, Yuting Liu, Xuan Ji, Zong-hong Zhu   +6 more
semanticscholar   +1 more source

Strong deflection gravitational lensing

, 2012
In this work are reviewed several aspects of gravitational lensing produced by astrophysical bodies that strongly curve the spacetime in their vicinity. When an object with a photon sphere (e.g. a black hole) is interposed between a source and an observer, in addition to primary and secondary images due to small deflections of the light rays, there are
openaire   +2 more sources

Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit

Contributions to Plasma Physics, EarlyView.
ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik, H. M. Thomas, M. Kretschmer, M. Thoma   +3 more
wiley   +1 more source

Uncertainties in Parameters Estimated with Neural Networks: Application to Strong Gravitational Lensing [PDF]

, 2017
In Hezaveh et al. we showed that deep learning can be used for model parameter estimation and trained convolutional neural networks to determine the parameters of strong gravitational-lensing systems.
L. Perreault Levasseur, Y. Hezaveh, Risa Wechsler   +2 more
semanticscholar   +1 more source

Strong Gravitational Lensing and Dark Energy [PDF]

The Astrophysical Journal, 2001
12 pages, 3 figures.
Sarbu, Nick, Rusin, David, Ma, Chung-Pei
openaire   +2 more sources