Results 41 to 50 of about 184 (166)

Droplet friction on superhydrophobic surfaces

Droplet, EarlyView.
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

Systematic Effects in Galaxy-Galaxy Lensing with DESI

The Open Journal of Astrophysics
The Dark Energy Spectroscopic Instrument (DESI) survey will measure spectroscopic redshifts for millions of galaxies across roughly $14,000 \, \mathrm{deg}^2$ of the sky.
Johannes Ulf Lange, C. Blake, C. Saulder, N. Jeffrey, J. DeRose, G. Beltz-Mohrmann, N. Emas, C. Garcia-Quintero, B. Hadzhiyska, S. Heydenreich, M. Ishak, S. Joudaki, E. Jullo, A. Krolewski, A. Leauthaud, L. Medina-Varela, A. Porredon, G. Rossi, R. Ruggeri, E. Xhakaj, S. Yuan, J. Aguilar, S. Ahlen, D. Brooks, T. Claybaugh, A. de la Macorra, P. Doel, K. Fanning, S. Ferraro, A. Font-Ribera, J. E. Forero-Romero, E. Gaztañaga, S. Gontcho A Gontcho, S. Juneau, R. Kehoe, T. Kisner, A. Kremin, M. Landriau, M. E. Levi, M. Manera, R. Miquel, J. Moustakas, E. Mueller, A. D. Myers, J. Nie, G. Niz, N. Palanque-Delabrouille, C. Poppett, M. Rezaie, E. Sanchez, M. Schubnell, H. Seo, J. Silber, D. Sprayberry, G. Tarlé, M. Vargas-Magaña, R. H. Wechsler, Z. Zhou, H. Zou   +58 more
doaj   +1 more source

DeepLSS: Breaking Parameter Degeneracies in Large-Scale Structure with Deep-Learning Analysis of Combined Probes

Physical Review X, 2022
In classical cosmological analysis of large-scale structure surveys with two-point functions, the parameter measurement precision is limited by several key degeneracies within the cosmology and astrophysics sectors. For cosmic shear, clustering amplitude
Tomasz Kacprzak, Janis Fluri
doaj   +1 more source

Middle to Late Pleistocene landscape evolution and glacial dynamics in the Eastern Alps: the Gröbminger Mitterberg record, Austria

Boreas, EarlyView.
Glacial erosion during the Last Glacial Maximum (LGM) has removed much evidence of earlier glaciations and interglacials in the European Alps. At Gröbminger Mitterberg (GM), beneath a blanket of LGM till, a distinctive sediment archive preserves deposits predating the LGM.
Gerit E. U. Griesmeier, Daniel P. Le Heron, Christopher Lüthgens, Gustav Firla, Bernhard Salcher, Fabian Dremel, Jan‐Christoph Otto, Jürgen M. Reitner   +7 more
wiley   +1 more source

Cluster Lensing Mass Inversion (CLUMI+): Combining Dynamics and Weak Lensing around Galaxy Clusters

The Astrophysical Journal
We present clumi+ , a self-consistent, multiprobe methodology for reconstructing the mass distribution in and around galaxy clusters by combining gravitational lensing and dynamical observations. Building on the joint likelihood framework of K.
Keiichi Umetsu, Michele Pizzardo, Antonaldo Diaferio, Margaret J. Geller   +3 more
doaj   +1 more source

THE SYSTEMATIC ERROR TEST FOR PSF CORRECTION IN WEAK GRAVITATIONAL LENSING SHEAR MEASUREMENT BY THE ERA METHOD BY IDEALIZING PSF [PDF]

The Astrophysical Journal, 2016
ABSTRACT We improve the ellipticity of re-smeared artificial image (ERA) method of point-spread function (PSF) correction in a weak lensing shear analysis in order to treat the realistic shape of galaxies and the PSF. This is done by re-smearing the PSF and the observed galaxy image using a re-smearing function (RSF) and allows us to use
Okura, Yuki, Futamase, Toshifumi
openaire   +2 more sources

Debris at the edge: sedimentological dynamics of Hintereisferner's evolving terminus and glacial forefield, Austrian Alps

Boreas, EarlyView.
The interaction between glaciers and the debris accumulating on their surfaces is critical as the Earth warms, with consequences for ice dynamics, hydrology and mass balance together with slope and sedimentary processes. Understanding this interaction is necessary since it influences ablation rates, sediment and meltwater pathways.
Paulina Mejías Osorio, Ricarda Wohlschlägl, Thomas M. Vandyk, Sara Karbacher, Bethan Joan Davies, Daniel Paul Le Heron   +5 more
wiley   +1 more source

Precision Measurement of Large Shear Signals

The Astrophysical Journal Letters
So far, estimators of galaxy shape distortions are only carefully studied perturbatively in the case of small shear signals, mainly for weak-lensing science.
Jiarui Sun, Jun Zhang, Li Cui, Alessandro Sonnenfeld, Xin Wang   +4 more
doaj   +1 more source

COSMOLOGY, COSMOMICROPHYSICS AND GRAVITATION

Odessa Astronomical Publications, 2013
We derive approximate formulas for the coordinates and magnification of critical images of a point source in a vicinity of a cusp caustic arising in the gravitational lens mapping. In the lowest (zero-order) approximation, these formulas were obtained in
A. N. Alexandrov, V. I. Zhdanov, S. M. Koval   +2 more
doaj   +1 more source

Garnet–Clinopyroxene Double‐Layered Coronae in a Metagabbronorite From the High‐Grade Metamorphic Gföhl Unit, Moldanubian Zone

Journal of Metamorphic Geology, EarlyView.
ABSTRACT This study investigates garnet–clinopyroxene double‐layered coronae in a metagabbronorite from the high‐grade metamorphic Gföhl Unit (Bohemian Massif). The coronae formed at the interfaces between relic magmatic orthopyroxene, still preserved in the cores of the coronae, and the plagioclase‐rich rock matrix.
Rene Asenbaum, Tereza Nemeškalová, Martin Racek, Vojtěch Janoušek, Julian Portenkirchner, Rainer Abart   +5 more
wiley   +1 more source