Results 71 to 80 of about 184 (166)

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

Engineering Hierarchically Nano‐Structured Cu Foams: Dynamic Hydrogen Bubble Templated Binder‐Free Freestanding Electrodes for Energy Applications

Small, Volume 22, Issue 8, 6 February 2026.
The competition between H2 evolution (HER) and Cu electrodeposition during the dynamic hydrogen bubble templating (DHBT) crucially influences the synthesized foam morphology. Generally, when HER is dominating, numerous small H2 bubbles form, resulting in compact Cu foams.
Mina Attia, Chen Zhao, Miriam Lindner, Philipp Hawe, Christina Roth   +4 more
wiley   +1 more source

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

Propagating Residual Biases in Cosmic Shear Power Spectra

The Open Journal of Astrophysics, 2019
In this paper we derive a full expression for the propagation of multiplicative and additive shape measurement biases into the cosmic shear power spectrum.
Thomas D. Kitching, Paniez Paykari, Henk Hoekstra, Mark Cropper   +3 more
doaj   +1 more source

Describing the Global Gravity Field of Mars With Lithospheric Flexure and Deep Mantle Flow

Journal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract The volcanic complex Tharsis Region on Mars is known for its numerous volcanoes on top of the crust, elevated topography (doming), and a long‐wavelength gravity anomaly correlated with the region. Flexural modeling of the lithosphere has commonly been used to understand the relationship between observed topography, crustal structure, and ...
Bart Root, Weilun Qin, Youandi van der Tang, Cedric Thieulot   +3 more
wiley   +1 more source

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

Morphological Evolution of Impact Craters and Associated Gravity Anomalies: New Perspectives From Numerical Modeling

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract Hyper‐velocity impacts on planetary surfaces lead to impact craters whose morphology evolves due to exogenous factors such as atmospheric processes, as well as endogenous factors including tectonic and metamorphism. On Earth, erosion processes driven by climate (fluvial, aeolian, glacial processes) progressively erase these structures, or even
Lounis Ait Oufella, Yoann Quesnel, Vincent Godard, Anthony Lagain   +3 more
wiley   +1 more source

A Unified Photometric Redshift Calibration for Weak Lensing Surveys Using the Dark Energy Spectroscopic Instrument

The Astrophysical Journal
The effective redshift distribution n ( z ) of galaxies is a critical component in the study of weak gravitational lensing. Here, we introduce a new method for determining n ( z ) for weak lensing surveys based on high-quality redshifts and neural ...
J. U. Lange, D. Blanco, A. Leauthaud, A. H. Wright, A. Fisher, J. Ratajczak, J. Aguilar, S. Ahlen, S. Bailey, D. Bianchi, C. Blake, D. Brooks, T. Claybaugh, A. Cuceu, K. S. Dawson, A. de la Macorra, J. DeRose, Arjun Dey, P. Doel, N. Emas, S. Ferraro, A. Font-Ribera, J. E. Forero-Romero, C. Garcia-Quintero, E. Gaztañaga, S. Gontcho A Gontcho, G. Gutierrez, S. Heydenreich, H. Hildebrandt, M. Ishak, J. Jimenez, S. Joudaki, R. Kehoe, D. Kirkby, T. Kisner, A. Kremin, O. Lahav, C. Lamman, M. Landriau, L. Le Guillou, M. E. Levi, L. Medina-Varela, A. Meisner, R. Miquel, J. Moustakas, S. Nadathur, J. A. Newman, N. Palanque-Delabrouille, A. Porredon, F. Prada, I. Pérez-Ràfols, G. Rossi, R. Ruggeri, E. Sanchez, C. Saulder, D. Schlegel, M. Schubnell, D. Sprayberry, Z. Sun, G. Tarlé, B. A. Weaver, S. Yuan, P. Zarrouk, H. Zou   +63 more
doaj   +1 more source

Chemical‐Thermomechanical Modeling of Open‐System Mass Transfer: Application to the Subduction Interface

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract One of the main limitations in simulating subsolidus metasomatism is the decoupling between thermomechanical models and chemical/thermodynamic modeling. This decoupling amplifies the uncertainty associated with mass transport. Here, we introduce a fluid‐rock chemical‐thermomechanical interaction scheme, which integrates thermodynamic modeling (
Jun Ren, Manuele Faccenda, Xin Zhong, Matthieu E. Galvez, Jianfeng Yang, Nicolas Riel   +5 more
wiley   +1 more source

Gravity-selected Cluster Samples: A New Take on the Compton-y–Mass Relation

The Astrophysical Journal
We investigate the scaling relation between the Compton- y parameter and mass in a gravity-selected sample of galaxy clusters, selected based on their gravitational lensing effects on background galaxies. Unlike intracluster medium (ICM)−selected samples,
S. Andreon, M. Radovich
doaj   +1 more source