Results 91 to 100 of about 11,925 (196)

Detecting Gravitational Lensing Cosmic Shear from Samples of Several Galaxies Using Two-dimensional Spectral Imaging

The Astrophysical Journal, 2002
Studies of weak gravitational lensing by large-scale structures require the measurement of the distortions introduced to the shapes of distant galaxies at the few percent level by anisotropic light deflection along the line of sight. To detect this signal on 1-10 arcmin scales in a particular field, accurate measurements of the correlations between the
openaire   +2 more sources

Synthetic Cell‐Based Artificial Stem Cell Niches for Hematopoietic Stem Cell Differentiation

ChemBioChem, Volume 27, Issue 8, April 2026.
Hematopoietic stem cells (HSCs) receive a combination of biochemical and biomechanical signals within the bone marrow that guide their differentiation process. These include soluble factor signaling with cytokines, cellular confinement in the stem cell niche, and contact‐dependent receptor–ligand interactions with stromal cells. Recreating this complex
Ivaylo Balabanov, Sara Madureira, Anna Burgstaller, Maja Fehlberg, Nils Piernitzki, Nurzhan Abdukarimov, Franziska Lautenschläger, Oskar Staufer   +7 more
wiley   +1 more source

Weak Gravitational Lensing around Low Surface Brightness Galaxies in the DES Year 3 Data

The Open Journal of Astrophysics
We present galaxy-galaxy lensing measurements using a sample of low surface brightness galaxies (LSBGs) drawn from the Dark Energy Survey Year 3 (Y3) data as lenses.
N. Chicoine, J. Prat, G. Zacharegkas, C. Chang, D. Tanoglidis, A. Drlica-Wagner, D. Anbajagane, S. Adhikari, A. Amon, R. H. Wechsler, A. Alarcon, K. Bechtol, M. R. Becker, G. M. Bernstein, A. Campos, A. Carnero Rosell, M. Carrasco Kind, R. Cawthon, R. Chen, A. Choi, J. Cordero, C. Davis, J. DeRose, S. Dodelson, C. Doux, K. Eckert, J. Elvin-Poole, S. Everett, A. Ferté, M. Gatti, G. Giannini, D. Gruen, R. A. Gruendl, I. Harrison, K. Herner, M. Jarvis, P. -F. Leget, N. MacCrann, J. McCullough, J. Myles, A. Navarro-Alsina, S. Pandey, M. Raveri, R. P. Rollins, A. Roodman, A. J. Ross, E. S. Rykoff, C. Sánchez, L. F. Secco, I. Sevilla-Noarbe, E. Sheldon, T. Shin, M. A. Troxel, I. Tutusaus, T. N. Varga, B. Yanny, B. Yin, J. Zuntz, M. Aguena, O. Alves, D. Bacon, D. Brooks, J. Carretero, F. J. Castander, C. Conselice, S. Desai, J. De Vicente, P. Doel, I. Ferrero, B. Flaugher, J. Frieman, J. García-Bellido, E. Gaztanaga, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, D. J. James, K. Kuehn, S. Lee, C. Lidman, M. Lima, J. L. Marshall, J. Mena-Fernández, R. Miquel, J. Muir, R. L. C. Ogando, A. Palmese, M. E. S. Pereira, A. Pieres, A. A. Plazas Malagón, A. Porredon, A. R. Walker, S. Samuroff, E. Sanchez, D. Sanchez Cid, M. Smith, E. Suchyta, M. E. C. Swanson, G. Tarle, C. To, D. L. Tucker, V. Vikram, N. Weaverdyck, P. Wiseman   +104 more
doaj   +1 more source

Multiple Weak Deflections in Galaxy-Galaxy Lensing

, 2010
The frequency and effects of multiple weak deflections in galaxy-galaxy lensing are investigated via Monte Carlo simulations. The lenses in the simulations are galaxies with known redshifts and known rest-frame blue luminosities.
Blandford, Cohen, Cohen, Cohen, Cooray, dell’Antonio, Fischer, Hoekstra, Hoekstra, Hogg, Hudson, Lowenthal, Natarajan, Parker, Phillips, Schneider, Sheldon, Smail, Tereasa G. Brainerd, van Waerbeke   +19 more
core   +1 more source

Droplet friction on superhydrophobic surfaces

Droplet, Volume 5, Issue 2, April 2026.
By developing an experimental setup that simultaneously measures the friction force, macroscopic shape profile, and the macro‐ and microscopic contact line dynamics of a laterally sliding droplet, this study establishes an analytical model that predicts droplet friction on pillared superhydrophobic surfaces relying only on surface geometrical ...
Youhua Jiang, Chuanqi Wei
wiley   +1 more source

Exploring Joint Observation of the CSST Shear and Clustering of Astrophysical Gravitational Wave Source Measurements

The Astrophysical Journal
We present a comprehensive forecast for cosmological constraints using the joint observation of the cosmic shear signal from the Chinese Space Station Survey Telescope (CSST) and the clustering signal from the next-generation gravitational wave (GW ...
Pengfei Su, Yan Gong, Qi Xiong, Dingao Hu, Hengjie Lin, Furen Deng, Xuelei Chen   +6 more
doaj   +1 more source

Usability of the NFW Galaxy Profile as a Cosmological Tool Estimated from 2-Image Gravitational Lens Systems

, 1999
The profile of Navarro, Frenk, and White (the NFW profile), which was derived from the {\it N}-body simulations of cold dark-matter halos, is a strong candidate for a galaxy or cluster profile.
Asano, K.
core   +2 more sources

Forecast of Joint Analysis of Cosmic Shear and Supernovae Magnification from the CSST and LSST

The Astrophysical Journal
Cosmic shear and cosmic magnification reflect the same gravitational lensing field. Each of these two probes are affected by different systematics. We study the auto- and cross-correlations of cosmic shear from the China Space Survey Telescope and cosmic
Ye Cao, Bin Hu, Ji Yao, Hu Zhan
doaj   +1 more source

Sheer shear: weak lensing with one mode

The Open Journal of Astrophysics, 2019
3D data compression techniques can be used to determine the natural basis of radial eigenmodes that encode the maximum amount of information in a tomographic large-scale structure survey.
Emilio Bellini, Ludovic van Waerbeke, Shahab Joudaki, David Alonso   +3 more
doaj   +1 more source

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