Results 61 to 70 of about 706,236 (203)

Riverbank Erosion Susceptibility Under Varying Sedimentological and Freeze–Thaw Conditions in Cold Climate Regions

Earth Surface Processes and Landforms, Volume 51, Issue 10, October 2026.
Freeze–thaw processes, moisture, and sediment properties control riverbank erosion in boreal–subarctic rivers. Field measurements, geotechnical analyses and monitoring reveal continuous, seasonally driven erosion, while climate projections indicate reduced freezing, potentially increasing erosion risk under warming conditions.
Tuure Takala, Pauli Kolisoja, Nuutti Vuorimies, Erik van Rooijen, Eliisa Lotsari   +4 more
wiley   +1 more source

The stellar and dark matter distributions in early-type galaxies measured by stacked weak gravitational lensing

The Open Journal of Astrophysics
We investigate stellar mass and central dark matter density profiles of photometric luminous red galaxies with stellar masses of $\sim10^{10}-10^{12}M_\odot$ using weak gravitational lensing measurements from the Hyper Suprime-Cam Subaru Strategic ...
Momoka Fujikawa, Masamune Oguri
doaj   +1 more source

Periglacial Puzzles: Unravelling Environmental Controls on Alpine Solifluction Lobe Dimensions and Shape

Permafrost and Periglacial Processes, Volume 37, Issue 4, Page 765-777, October/December 2026.
ABSTRACT Freeze–thaw processes cause periglacial creep (otherwise known as solifluction) which forms solifluction lobes. These are lobate features characterized by a steep riser (front) and a smooth tread (body). Despite the widespread occurrence of these lobes, the controls on their morphometry remain poorly understood. Research into solifluction lobe
Jil S. van Etten, Jana Eichel, Daniel Draebing   +2 more
wiley   +1 more source

Cosmology with the line-of-sight shear of strong gravitational lenses

Stage-IV photometric galaxy surveys are designed to measure the position and shapes of billions of galaxies. Their aim is to characterise the large-scale distribution of matter in the Universe using galaxy clustering and weak gravitational lensing. As a byproduct, stage-IV surveys are expected to detect more than a hundred thousand strong gravitational
Fleury, Pierre, Johnson, Daniel, Duboscq, Théo, Hogg, Natalie B., Larena, Julien   +4 more
openaire   +2 more sources

Edges In Coadded Images

The Open Journal of Astrophysics
We investigate how discontinuities in the point spread function (PSF) and image noise affect weak gravitational lensing shear measurements. Our focus is on discontinuities that arise in coadded images, particularly when edges from input images cross the ...
Erin Sheldon
doaj   +1 more source

Euclid: Early Release Observations – Weak gravitational lensing analysis of Abell 2390 ★

Astronomy & Astrophysics
The Euclid space telescope of the European Space Agency (ESA) is designed to provide sensitive and accurate measurements of weak gravitational lensing distortions over wide areas on the sky. Here, we present a weak gravitational lensing analysis of early
Schrabback T., Congedo G., Gavazzi R., Hartley W. G., Jansen H., Kang Y., Kleinebreil F., Atek H., Bertin E., Cuillandre J.-C., Diego J. M., Grandis S., Hoekstra H., Kümmel M., Linke L., Miyatake H., Okabe N., Paltani S., Schefer M., Simon P., Tarsitano F., Taylor A. N., Weaver J. R., Bhatawdekar R., Montes M., Rosati P., Toft S., Altieri B., Amara A., Amendola L., Andreon S., Auricchio N., Baccigalupi C., Baldi M., Balestra A., Bardelli S., Battaglia P., Bender R., Biviano A., Branchini E., Brescia M., Brinchmann J., Camera S., Cañas-Herrera G., Candini G. P., Capobianco V., Carbone C., Cardone V. F., Carretero J., Casas S., Castander F. J., Castellano M., Castignani G., Cavuoti S., Chambers K. C., Cimatti A., Colodro-Conde C., Conselice C. J., Conversi L., Copin Y., Costille A., Courbin F., Courtois H. M., Cropper M., Da Silva A., Degaudenzi H., De Lucia G., Dole H., Douspis M., Dubath F., Dupac X., Dusini S., Escoffier S., Farina M., Farinelli R., Farrens S., Faustini F., Ferriol S., Finelli F., Fosalba P., Frailis M., Franceschi E., Fumana M., Galeotta S., George K., Gillard W., Gillis B., Giocoli C., Gracia-Carpio J., Grazian A., Grupp F., Haugan S. V. H., Hoar J., Holmes W., Hook I. M., Hormuth F., Hornstrup A., Hudelot P., Jahnke K., Jhabvala M., Joachimi B., Keihänen E., Kermiche S., Kilbinger M., Kubik B., Kuijken K., Kunz M., Kurki-Suonio H., Laureijs R., Le Brun A. M. C., Le Mignant D., Ligori S., Lilje P. B., Lindholm V., Lloro I., Mainetti G., Maino D., Maiorano E., Mansutti O., Marcin S., Marggraf O., Martinelli M., Martinet N., Marulli F., Massey R. J., Maurogordato S., Medinaceli E., Mei S., Mellier Y., Meneghetti M., Merlin E., Meylan G., Mohr J. J., Mora A., Moresco M., Moscardini L., Nakajima R., Neissner C., Nichol R. C., Niemi S.-M., Padilla C., Pasian F., Pedersen K., Percival W. J., Pettorino V., Pires S., Polenta G., Poncet M., Popa L. A., Pozzetti L., Raison F., Renzi A., Rhodes J., Riccio G., Romelli E., Roncarelli M., Rosset C., Saglia R., Sakr Z., Sapone D., Sartoris B., Schirmer M., Schneider P., Secroun A., Seidel G., Seiffert M., Serrano S., Sirignano C., Sirri G., Spurio Mancini A., Stanco L., Steinwagner J., Tallada-Crespí P., Tereno I., Tessore N., Toledo-Moreo R., Torradeflot F., Tutusaus I., Valentijn E. A., Valenziano L., Valiviita J., Vassallo T., Verdoes Kleijn G., Veropalumbo A., Wang Y., Weller J., Zamorani G., Zerbi F. M., Zucca E., Bolzonella M., Burigana C., Gabarra L., Martín-Fleitas J., Matthew S., Pezzotta A., Scottez V., Sereno M., Viel M., Scott D.   +198 more
doaj   +1 more source

Ultrasonic Vibration Assisted Laser Processing: A Hybrid Paradigm for Extreme Surface Enhancement

Rare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Traditional laser processing techniques offer many advantages, but they often encounter limitations such as heat‐affected zones, recast layers, residual tensile stresses, and poor surface finish. The integration of ultrasonic vibration (UV) presents a promising hybrid approach to overcome these challenges by introducing beneficial effects like
Aziz Ul Hassan Mohsan, Xuedao Shu, Hu Zong, Su Zhao, Khamis Essa, Di Tie, Changyong Chen   +6 more
wiley   +1 more source

Raychaudhuri equation and Weyl-driven shear: A weak-field approach to lensing and gravitational waves

Physics Letters A
The letter studies phenomena like gravitational wave propagation and gravitational lensing using the celebrated Raychaudhuri equation (RE) in the weak field limit. Newtonian analogue of Relativistic RE has been explored. In doing so, role of shear has been found to be extremely important in explaining these phenomena. Consequently, the RE for shear has
Madhukrishna Chakraborty, Subenoy Chakraborty   +1 more
openaire   +2 more sources

Validation of the DESI-DR1 3x2-pt analysis: scale cut and shear ratio tests

The Open Journal of Astrophysics
Combined survey analyses of galaxy clustering and weak gravitational lensing (3x2-pt studies) will allow new and accurate tests of the standard cosmological model. However, careful validation is necessary to ensure that these cosmological constraints are
Ni Putu Audita Placida Emas, A. Porredon, C. Blake, J. DeRose, J. Aguilar, S. Ahlen, D. Bianchi, D. Brooks, F. J. Castander, T. Claybaugh, A. Cuceu, A. de la Macorra, A. Dey, B. Dey, P. Doel, S. Ferraro, J. E. Forero-Romero, C. Garcia-Quintero, E. Gaztañaga, S. Gontcho A Gontcho, G. Gutierrez, S. Heydenreich, K. Honscheid, D. Huterer, M. Ishak, S. Joudaki, R. Joyce, E. Jullo, S. Juneau, R. Kehoe, D. Kirkby, T. Kisner, A. Kremin, A. Krolewski, O. Lahav, M. Landriau, J. U. Lange, L. Le Guillou, A. Leauthaud, M. Manera, R. Miquel, S. Nadathur, W. J. Percival, F. Prada, G. Rossi, R. Ruggeri, E. Sanchez, C. Saulder, A. Semenaite, H. Seo, J. Silber, D. Sprayberry, Z. Sun, G. Tarlé, B. A. Weaver, R. H. Wechsler, R. Zhou   +56 more
doaj   +1 more source

Accurate cosmological emulator for the probability distribution function of gravitational lensing of point sources

Astronomy & Astrophysics
Aims. We developed an accurate and computationally efficient emulator to model the gravitational lensing magnification probability distribution function (PDF), enabling robust cosmological inference of point sources such as supernovae and gravitational ...
Turker Tunç, Marra Valerio, Castro Tiago, Quartin Miguel, Borgani Stefano   +4 more
doaj   +1 more source