Results 71 to 80 of about 11,925 (196)

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

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
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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
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The spread of non‐native species

Biological Reviews, Volume 101, Issue 3, Page 1197-1234, June 2026.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock, Ali Serhan Tarkan, Irene Martín‐Forés, Stelios Katsanevakis, Ronaldo Sousa, Ismael Soto, Andy J. Green, Antonín Kouba, Teun Everts, Victoria Dominguez Almela, Nadège Belouard, Cang Hui, Jamie Bojko, Victor Deklerck, Margaux Boeraeve, Franz Essl, J. Robert Britton   +16 more
wiley   +1 more source

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
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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
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Deformation‐Induced Formation of Stray Grains in Additive Manufacturing of Single Crystals

Advanced Science, Volume 13, Issue 25, 4 May 2026.
Stray grain formation severely limits the additive manufacturing of single‐crystal alloys. By integrating in situ synchrotron techniques, ex situ characterization, and multi‐scale multi‐physics modeling, the authors reveal that stray grains originate from dislocations at the solid‐liquid interface, rather than thermal supercooling in conventional ...
Dongsheng Zhang, Zixu Guo, Yuxiao Li, Lu Wang, Yu Wu, Darui Sun, Wentao Yan, Yuanyuan Guo, Han Wang, Wei Liu, Ye Tao, Bingbing Zhang   +11 more
wiley   +1 more source

The Effect of Intrinsic Alignments on Weak-lensing Statistics in Hydrodynamical Simulations

The Astrophysical Journal
The next generation of weak-gravitational-lensing surveys has the potential to place stringent constraints on cosmological parameters. However, their analysis is limited by systematics such as the intrinsic alignments of galaxies, which alter weak ...
Max E. Lee, Zoltán Haiman, Shivam Pandey, Shy Genel   +3 more
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First measurement of gravitational lensing by cosmic voids in SDSS

, 2014
We report the first measurement of the diminutive lensing signal arising from matter underdensities associated with cosmic voids. While undetectable individually, by stacking the weak gravitational shear estimates around 901 voids detected in SDSS DR7 by
Krause, Elisabeth, Melchior, Peter, Sheldon, Erin S., Sutter, P. M., Wandelt, Benjamin D.   +4 more
core   +2 more sources

Seafloor Sediments, Morphologic Features, and Geotechnical Properties of Harrison Bay in the Alaskan Beaufort Sea

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract Sediments on Arctic continental shelves are impacted by sea ice and ice‐related processes for up to 9 months per year. As a result, seabed morphology in cold regions can exhibit features such as ice scours which are absent on lower‐latitude shelves.
E. F. Eidam, N. Stark, J. H. Nienhuis, D. Duncan, N. Brilli, N. Kallioras, R. Smith, A. D. J. Heath   +7 more
wiley   +1 more source