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The voids between galaxies are identified with the volumes of the Poisson Voronoi tessellation. Two new survival functions for the apparent radii of voids are derived. The sectional normalized area of the Poisson Voronoi tessellation is…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Lorenzo Zaninetti

With the motivation in mind to evaluate the contribution of the cosmological constant $\Lambda$ on the foam like patterns formation process in the distribution of galaxies, we investigate the Newtonian dynamics of a spherical void embedded…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Roland Triay , Henri-Hugues Fliche

The kinetic approach to the formation of the filaments in the large-scale matter distribution in the Universe is considered within the Vlasov formalism. The structures arise due to the self-consistent dynamics, along with the repulsive term…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-19 V. G. Gurzadyan , N. N. Fimin , V. M. Chechetkin

The large-scale distribution of matter in the universe forms a network of clusters, filaments and walls enclosing large empty voids. Voids in turn can be described as a cellular system in which voids/cells define dynamically distinct…

Cosmology and Nongalactic Astrophysics · Physics 2020-09-03 M. A. Aragon-Calvo

Transiting planets are generally close enough to their host stars that tides may govern their orbital and thermal evolution of these planets. We present calculations of the tidal evolution of recently discovered transiting planets and…

Astrophysics · Physics 2009-11-13 Brian Jackson , Rory Barnes , Richard Greenberg

Voids develop in crystalline materials under energetic particle irradiation, as in nuclear reactors. Understanding the underlying mechanisms of void nucleation and growth is of utmost importance as it leads to dimensional instability of the…

Materials Science · Physics 2024-05-24 Sreekar Rayaprolu , Kyle Starkey , Anter El-Azab

[Abridged] Tides may play an important role in determining the observed distributions of mass, orbital period, and eccentricity of the extrasolar planets. In addition, tidal interactions between giant planets in the solar system and their…

Astrophysics · Physics 2009-11-10 G. I. Ogilvie , D. N. C. Lin

Under tidal forcing, icy satellites with subsurface oceans deform as if the surface were a membrane stretched around a fluid layer. `Membrane worlds' is thus a fitting name for these bodies and membrane theory provides the perfect toolbox…

Geophysics · Physics 2015-10-26 Mikael Beuthe

This study concerns an inventory of the gravitational force and tidal field induced by filaments, walls, cluster nodes and voids on Megaparsec scales and how they assemble and shape the Cosmic Web. The study is based on a N$_{\rm…

Cosmology and Nongalactic Astrophysics · Physics 2024-07-24 Roi Kugel , Rien van de Weygaert

The mechanisms of void growth and coalescence are key contributors to the ductile failure of crystalline materials. At the grain scale, single crystal plastic anisotropy induces large strain localization leading to complex shape evolutions.…

Materials Science · Physics 2025-10-20 Jalal Smiri , Joseph Paux , Oguz Umut Salman , Ioan R. Ionescu

The effect of gravitational tidal forces on renormalized quantum fields propagating in curved spacetime is investigated and a generalisation of the optical theorem to curved spacetime is proved. In the case of QED, the interaction of tidal…

High Energy Physics - Theory · Physics 2015-06-03 Timothy J. Hollowood , Graham M. Shore

This note discusses basic properties of vorticity in groundwater flow theory. An evolution equation for the vorticity vector is derived to demonstrate that, when present, vorticity decreases very rapidly. In addition, it is shown how…

Fluid Dynamics · Physics 2014-07-30 José Jorge Nader

Recent N-body simulations have shown that the assembly history of galactic halos depend on the density of large-scale environment. It implies that the galaxy properties like age and size of bulge may also vary with the surrounding…

Astrophysics · Physics 2009-11-13 Jounghun Lee , Bomee Lee

Two formation scenarios have been proposed to explain the tight orbits of hot Jupiters. They could be formed in orbits with a small inclination (with respect to the stellar spin) via disk migration, or in more highly inclined orbits via…

Earth and Planetary Astrophysics · Physics 2015-06-18 Francesca Valsecchi , Frederic A. Rasio

We propose a new definition of cosmic voids based on methods of Lagrangian orbit reconstruction as well as an algorithm to find them in actual data called DIVA. Our technique is intended to yield results which can be modeled sufficiently…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Guilhem Lavaux , Benjamin D. Wandelt

With the discovery during the past decade of a large number of extrasolar planets orbiting their parent stars at a distance lower than 0.1 astronomical unit (and the launch and the preparation of dedicated space missions such as CoRoT and…

Astrophysics · Physics 2008-12-12 Stephane Mathis , Christophe Le Poncin-Lafitte

We perform the first long-time exploration of the classical dynamics of a driven billiard with a four dimensional phase space. With increasing velocity of the ensemble we observe an evolution from a large chaotic sea with stickiness due to…

Chaotic Dynamics · Physics 2015-05-13 F. Lenz , C. Petri , F. N. R. Koch , F. K. Diakonos , P. Schmelcher

We have used convolutional neural network in a classification task to track the radius evolution of levitating evaporating microdroplets of pure diethylene glycol, diethylene glycol water polystyrene microparticles suspension, dipropylene…

Soft Condensed Matter · Physics 2025-05-21 Kwasi Nyandey , Gennadiy Derkachov , Daniel Jakubczyk

Real-world time series exhibit temporally structured uncertainty: volatility clusters in turbulent regimes, dissipates in stable periods, and shifts abruptly around structural breaks. Yet many probabilistic forecasting methods estimate…

Machine Learning · Computer Science 2026-05-26 Yijun Wang , Qiyuan Zhuang , Xiu-Shen Wei

We present a general analytical procedure for computing the number density of voids with radius above a given value within the context of gravitational formation of the large scale structure of the universe out of Gaussian initial…

Astrophysics · Physics 2009-11-10 Santiago G. Patiri , Juan E. Betancort-Rijo , Francisco Prada
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