Results 61 to 70 of about 49,845 (276)

Weak lensing, dark matter and dark energy

, 2010
Weak gravitational lensing is rapidly becoming one of the principal probes of dark matter and dark energy in the universe. In this brief review we outline how weak lensing helps determine the structure of dark matter halos, measure the expansion rate of ...
A. Amara, A. Cooray, A. Cooray, A. Leauthaud, A. Leauthaud, A. Refregier, A. Refregier, A.F. Heavens, A.N. Taylor, A.P. Hearin, A.R. Zentner, B. Jain, B. Jain, B. Jain, B. Joachimi, C. Heymans, C. Schimd, C. Shapiro, C. Shapiro, D. Clowe, D. Huterer, D. Huterer, D. Huterer, D. Huterer, D. Huterer, D. Munshi, D. Wittman, D. Wittman, D. Wittman, D.E. Johnston, D.H. Rudd, D.J. Bacon, D.M. Wittman, D.N. Spergel, Dragan Huterer, E. Rozo, E.S. Sheldon, E.S. Sheldon, E.V. Linder, E.V. Linder, F. Bernardeau, F. Bernardeau, F. Schmidt, F. Schmidt, G. Bernstein, G. Bernstein, G. Wilson, G.B. Zhao, G.M. Bernstein, G.M. Bernstein, G.R. Dvali, H. Dahle, H. Hoekstra, H. Hoekstra, H. Hoekstra, H. Hoekstra, H. Oyaizu, H. Zhan, J. Benjamin, J. Frieman, J. Guzik, J. Miralda-Escude, J. Rhodes, J. Zhang, J.A. Tyson, J.F. Hennawi, J.M. Kratochvil, J.P. Dietrich, J.P. Uzan, K. Heitmann, K. Heitmann, K. Heitmann, L. Amendola, L. Fu, L. Hui, L. Marian, L. Marian, L. Van Waerbeke, L. Waerbeke van, M. Bartelmann, M. Hetterscheidt, M. Ishak, M. Jarvis, M. Jarvis, M. Kamionkowski, M. Kilbinger, M. Kleinheinrich, M. Schirmer, M. Takada, M. Takada, M. Takada, M. Takada, M.J. White, M.J. White, M.L. Brown, N. Kaiser, N. Kaiser, N. Padmanabhan, P. Fischer, P. Schneider, P. Schneider, P. Simon, R. Mandelbaum, R. Mandelbaum, R. Massey, R. Massey, R. Massey, R. Reyes, S. Dodelson, S. Dodelson, S. Miyazaki, S.F. Daniel, T. Hamana, T.D. Kitching, T.G. Brainerd, U.L. Pen, W. Hu, W. Hu, W. Hu, W. Hu, W. Hu, W.J. Fang, Z. Ma, Z.M. Ma   +123 more
core   +1 more source

Light‑Driven Propulsion of Graphene Aerogels in Microgravity

Advanced Science, EarlyView.
Ultralight graphene aerogels convert laser light into thrust. Parabolic‐flight experiments directly compare their motion in microgravity and at 1 g, revealing order‐of‐magnitude enhancements in distance, velocity, and transient thrust when weight and friction are removed (∼50 times enhancement).
Omnia Khattab, Rami Elkaffas, Basel Altawil, Omar Alsuwaidi, Afnan Almubashir, Claire Perfetti, Shanavas Shajahan, Marco Braibanti, Sean Swei, Carlo Saverio Iorio, Yarjan Abdul Samad   +10 more
wiley   +1 more source

Lensing Point-spread Function of Coherent Astrophysical Sources and Nontrivial Wave Effects

The Astrophysical Journal
Most research on astrophysical lensing has been conducted using the geometric optics framework, where there exists a clear concept of lensing images. However, wave optics effects can be important for coherent sources, e.g., pulsars, fast radio bursts ...
Xun Shi
doaj   +1 more source

Modeling the separation of water‐in‐oil emulsions in continuously fed gravity settlers using millifluidic experiments

AIChE Journal, EarlyView.
Abstract Emulsion separation remains a persistent challenge in chemical and process industries due to the metastable nature of dispersed droplets. In gravity separators, the overall separation rate is governed by the formation of a densely packed zone (DPZ) of deforming and coalescing droplets that mediates between the dispersed and continuous phases ...
Andrei Zlobin, José Esteban Andino‐Enriquez, Thomas Gouëzec, Maurice Bourrel, Enric Santanach‐Carreras, Nicolas Passade‐Boupat, Laurence Talini, François Lequeux, Pascal Panizza   +8 more
wiley   +1 more source

Gear Up for the Action Replay: Leveraging Lensing for Enhanced Gravitational-wave Early Warning

The Astrophysical Journal Letters, 2023
Premerger gravitational-wave (GW) sky localization of binary neutron star (BNS) and neutron star–black hole (NSBH) coalescence events would enable telescopes to capture precursors and electromagnetic (EM) emissions around the time of the merger.
Sourabh Magare, Shasvath J. Kapadia, Anupreeta More, Mukesh Kumar Singh, Parameswaran Ajith, A. N. Ramprakash   +5 more
doaj   +1 more source

Cosmological model differentiation through weak gravitational lensing [PDF]

, 2002
We investigate the potential of weak gravitational lensing maps to differentiate between distinct cosmological models, considering cosmic variance due to a limited map extension and the presence of noise.
Antonio C. C. Guimarães, Bacon, Bartelmann, Bartelmann, Bernardeau, Cooray, Couchman, Fischer, Guimarães, Hoekstra, Hui, Jain, Jain, Juszkiewicz, Kaiser, Kaiser, Maoli, Matsubara, Matsubara, Mellier, Munshi, Rhodes, Sato, Van Waerbeke, Van Waerbeke, Van Waerbeke, Winitzki, Wittman   +27 more
core   +3 more sources

Lymphatic Abnormalities in Noonan Syndrome Extend Beyond Clinically Apparent Disease

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Lymphatic disease represents a well‐described manifestation of Noonan syndrome (NS), yet the full phenotypic spectrum remains incompletely characterized, especially in asymptomatic individuals. We conducted a cross‐sectional study including 10 individuals with NS (four with peripheral lymphedema and six without) and 10 age‐ and sex‐matched ...
Inger Norlyk Sheyanth, Benjamin Kelly, Sheyanth Mohanakumar, Steffen Ringgaard, Yoav Dori, Irene Kibæk Nielsen, Uffe Birk Jensen, Vibeke Elisabeth Hjortdal   +7 more
wiley   +1 more source

Mimicking Symmetry‐Breaking Einstein Ring by Optical Lens

Advanced Photonics Research
The celebrated theory of general relativity has inspired research on optical simulations using artificial microstructures to mimic curved space–times.
Jun‐Liang Duan, Wen Xiao, Minyong Guo, Tong Liu, Huanyang Chen, Jin‐Hui Chen   +5 more
doaj   +1 more source

The GL bibliography and an interactive database [PDF]

, 1999
It is now possible to directly access, via the Internet, a bibliographical database on Gravitational Lensing (GL) literature. The Interactive Gravitational Lensing Bibliography (IGLB) totalizes more than 2400 titles of published articles in scientific ...
Detal, A., Jean, C., Pospieszalska-Surdej, A., Surdej, J.   +3 more
core   +2 more sources

A Systematic Review of Strong Gravitational Lens Modeling Software

, 2013
Despite expanding research activity in gravitational lens modeling, there is no particular software which is considered a standard. Much of the gravitational lens modeling software is written by individual investigators for their own use.
Aazami, Alan T. Lefor, Alard, Allam, Berciano Alba, Bertin, Boughen, Brewer, Brewer, Coe, Coe, Cohn, Jullo, Jullo, Kneib, Knudson, Liesenborgs, Liesenborgs, Liesenborgs, Liesenborgs, Limousin, Lin, Mohammad Akhlaghi, Newbury, Oguri, Oguri, Peng, Richard, Richard, Saha, Saha, Saha, Smith, Suyu, Toshifumi Futamase, Wallington, Warren, Wayth, Wayth, Williams   +39 more
core   +1 more source