Results 11 to 20 of about 669,916 (261)

Planetesimal Accretion at Short Orbital Periods

open access: yesThe Astrophysical Journal, 2023
Formation models in which terrestrial bodies grow via the pairwise accretion of planetesimals have been reasonably successful at reproducing the general properties of the Solar System, including small-body populations. However, planetesimal accretion has
Spencer C. Wallace, Thomas R. Quinn
doaj   +1 more source

Regular Polygon Central Configuration of the Restricted 1 + N-Body Problem

open access: yesUniverse, 2023
We consider the central configurations of the 1+N-body problem, where N bodies are infinitesimal and the remaining one body is dominant. For regular polygon central configurations, we prove that the masses of all the infinitesimal bodies are equal when N
Jian Chen, Peng Bi, Mingfang Yang
doaj   +1 more source

Periodic Solutions for N-Body-Type Problems [PDF]

open access: yesChinese Annals of Mathematics, Series B, 2020
We consider non-autonomous $N$-body-type problems with strong force type potentials at the origin and sub-quadratic growth at infinity, and using Ljusternik-Schnirelmann theory, we prove the existence of unbounded sequences of critical values for the Lagrangian action corresponding to non-collision periodic solutions.
Li, Fengying, Zhang, Shiqing
openaire   +2 more sources

A Dynamical Survey of the Trans-Neptunian Region. I. Mean-motion Resonances with Neptune

open access: yesThe Astrophysical Journal Supplement Series, 2023
In this paper, we present a large-scale dynamical survey of the trans-Neptunian region, with particular attention to mean-motion resonances (MMRs). We study a set of 4121 trans-Neptunian objects (TNOs), a sample far larger than in previous works.
E. Forgács-Dajka   +4 more
doaj   +1 more source

Body composition in Serbian police officers [PDF]

open access: yesNBP: Nauka, bezbednost, policija, 2022
Background. Police work belongs to the category of exceptionally responsible and psychologically , socially and physically strenuous and stressful professions.
Vuković Marko   +3 more
doaj   +1 more source

Some problems on the classical n-body problem [PDF]

open access: yesCelestial Mechanics and Dynamical Astronomy, 2012
10 pages, list of mathematical ...
Albouy, Alain   +2 more
openaire   +4 more sources

Busemann Functions for the N-Body Problem [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2014
10 ...
Percino, Boris   +1 more
openaire   +2 more sources

New Classes of Spatial Central Configurations for N + N + 2-Body Problem

open access: yesAbstract and Applied Analysis, 2012
Under arbitrary masses, in this paper, we discuss the existence of new families of spatial central configurations for the N + N + 2-body problem, 𝑁≥2.
Liu Xuefei   +3 more
doaj   +1 more source

Implementation of fast algorithms for 2D flow simulation using vortex particle methods

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки
Vortex particle methods of computational hydrodynamics are widely employed by engineers to solve the problems of flow simulation and estimation of unsteady hydrodynamic loads acting on bodies.
E. P. Ryatina   +3 more
doaj   +1 more source

On an Application of the Hill Approach to the General Case of the Three-body Problem

open access: yesThe Astronomical Journal
In this work, we use the energy and angular momentum integrals as a resource for applying Hill’s approach to the general three-body problem. As a result, we obtain theorems on the Lagrange stability and Hill stability in the general three-body problem ...
Stepan P. Sosnitskii
doaj   +1 more source

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