Results 1 to 10 of about 346,394 (320)

Alignments of Voids in the Cosmic Web [PDF]

, 2007
We investigate the shapes and mutual alignment of voids in the large scale matter distribution of a LCDM cosmology simulation. The voids are identified using the novel WVF void finder technique.
Bernard J. T. Jones, Binggeli B., Conway A., Erwin Platen, Icke V., Park D., Rhee G., Rien van de Weygaert, Stoyan D., van de Weygaert R.   +9 more
core   +4 more sources

Statistics and geometry of cosmic voids

, 2009
We introduce new statistical methods for the study of cosmic voids, focusing on the statistics of largest size voids. We distinguish three different types of distributions of voids, namely, Poisson-like, lognormal-like and Pareto-like distributions.
A. Gabrielli, A.V. Tikhonov, A.Z. Mekjian, B.B. Mandelbrot, B.J. Jones, C.M. Bender, D. Sornette, D.S. Mitrinovic, G. Kauffmann, H. El-Ad, J. Betancort-Rijo, J. Einasto, J. Gaite, J. Gaite, J. Gaite, J.M. Colberg ., José Gaite, K. Falconer, M. Vergassola, P. Coles, P.J.E. Peebles, P.J.E. Peebles, S. Borgani, S. Colombi, S.D.M. White, S.N. Gurbatov, V. Icke, W. Franz   +27 more
core   +1 more source

Tracing the gravitational potential using cosmic voids [PDF]

, 2017
The properties of large underdensities in the distribution of galaxies in the Universe, known as cosmic voids, are potentially sensitive probes of fundamental physics.
Crittenden, Robert, Hotchkiss, Shaun, Nadathur, Seshadri   +2 more
core   +2 more sources

General solution and fundamental solution for two-dimensional problem in orthotropic thermoelastic media with voids [PDF]

Theoretical and Applied Mechanics, 2014
The aim of the present paper is to study the fundamental solution in orthotropic thermoelastic media with voids. With this objective, firstly the two-dimensional general solution in orthotropic thermoelastic media with voids is derived.
Kumar Rajneesh, Chawla Vijay
doaj   +1 more source

The Impact of Laser Irradiation on Thin ZrN Films Deposited by Pulsed DC Magnetron Sputtering

Nanomaterials
Transition metal nitrides have extensive applications, including magnetic storage devices, hardware resistance coatings, and low-temperature fuel cells.
Ameena Nazneen, Penghui Lei, Di Yun
doaj   +1 more source

Average luminosity distance in inhomogeneous universes

, 2010
The paper studies the correction to the distance modulus induced by inhomogeneities and averaged over all directions from a given observer. The inhomogeneities are modeled as mass-compensated voids in random or regular lattices within Swiss-cheese ...
A. Fairall, A. Ishibashi, A. Lemaître, A. Sandage, A. Sandage ., A.G. Riess ., B. Granett, B.R. Granett, C. Foster, D.D. Kocevski, G. Ellis, H. Bondi, H.G. Rose, HST collaboration, I. Zehavi, J. Neill, J. Silk, J.A. Willick, J.R. Mould ., K. Van Acoleyen, L. da Costa ., M. Einasto ., M. Hicken ., N. Brouzakis, N. Mustapha, P.J.E. Peebles, R. Giovanelli ., R. Kessler ., S. Jha, T. Haugboelle ., V. Marra, V. Mukhanov, Valentin Kostov, W. Valkenburg, X. Shi, X.-D. Shi   +35 more
core   +2 more sources

Void Mediated Failure at the Extremes: Spallation in Magnesium and Aluminum

Metals, 2022
This paper reviews the role of void nucleation, growth, and coalescence on the spall failure process in light metals. Based on the review of the open literature, the preponderance of evidence show that void nucleation, growth, and coalescence are ...
Cyril Labode Williams
doaj   +1 more source

Slowly rotating voids in cosmology [PDF]

, 2000
We consider a spacetime consisting of an empty void separated from an almost Friedmann-Lema\^\i tre-Robertson-Walker (FLRW) dust universe by a spherically symmetric, slowly rotating shell which is comoving with the cosmic dust.
Barbour J, Barrabès C, Bondi H, Israel W, Israel W, Jirí Bicák, Katz J, Klein C, Klein C, Lewis S M, Lynden-Bell D, Lynden-Bell D, Nathalie Deruelle, Thirring H, Thirring H, Tomás Dolezel, Vadas S   +16 more
core   +2 more sources

Precision cosmography with stacked voids

, 2012
We present a purely geometrical method for probing the expansion history of the Universe from the observation of the shape of stacked voids in spectroscopic redshift surveys.
Abazajian, Albrecht, Ballinger, Benjamin D. Wandelt, Blanton, Cool, Guilhem Lavaux, Hoyle, Ilbert, Jasche, Jimenez, Jones, Kochanek, Komatsu, Kowalski, Laureijs, Lewis, Park, Schlegel, Schmidt, van de Weygaert   +20 more
core   +2 more sources

Luminosity distance in Swiss cheese cosmology with randomized voids. II. Magnification probability distributions

, 2011
We study the fluctuations in luminosity distances due to gravitational lensing by large scale (> 35 Mpc) structures, specifically voids and sheets. We use a simplified "Swiss cheese" model consisting of a \Lambda -CDM Friedman-Robertson-Walker background
Ira Wasserman, J. Wambsganss, M. J. Gellar, Naresh Kumar, P. Valageas, P. Valageas, R. Ali Vanderveld, S. Hilbert, Éanna É. Flanagan   +8 more
core   +1 more source