Results 101 to 110 of about 779,528 (296)

Dependency of the Bar Formation Timescale on the Halo Spin

The Astrophysical Journal
Bars are among the most prominent structures in disk galaxies. While the widely accepted swing-amplification theory provides a qualitative framework for their formation, the detailed physical processes remain incompletely understood.
Bin-Hui Chen, Sandeep Kumar Kataria, Juntai Shen, Meng Guo   +3 more
doaj   +1 more source

Understanding the PSCz Galaxy Power Spectrum with N-body Simulations

, 2003
By comparing the PSCz galaxy power spectrum with the results of nested pure dark matter N-body simulations, we try to understand how infrared-selected galaxies populate dark-matter haloes, paying special attention to the method of halo identification in ...
Andrew J. S. Hamilton, Baugh, Benson, Benson, Berlind, Berlind, Bertschinger, Bertschinger, Bertschinger, Beylkin, Binney, Cen, Colín, Cooray, Davé, Eisenstein, Eisenstein, Gelb, Gunn, Hamilton, Hamilton, Katz, Kauffmann, Klypin, Kravtsov, Lewis, Mark C. Neyrinck, Mathis, Moore, Nickolay Y. Gnedin, Peacock, Pearce, Pen, Percival, Press, Saunders, Seljak, Sheth, Somerville, Wang, White, White, York, Yoshikawa, Zehavi, Zehavi   +45 more
core   +3 more sources

Overmerging in N-body simulations

, 2000
4 pages, 1 figure, submitted to Monthly ...
openaire   +2 more sources

A Concept of a Digital and Traceable Manufacturing Documentation Based on Formalized Process Description Applied on Composite Aircraft Moveable

Advanced Engineering Materials, EarlyView.
The documentation of component manufacture has become an essential part of today's production processes, especially for the analysis and optimization of production or component design with regard to structural performance, economic efficiency, and sustainability.
Björn Denker, Dominik Delisle, Christian Krombholz, Martin Rädel, Frank Dressel   +4 more
wiley   +1 more source

Jupiter’s Metastable Companions

The Astrophysical Journal Letters
Jovian co-orbitals share Jupiter’s orbit and exhibit 1:1 mean-motion resonance with the planet. This includes >10,000 so-called Trojan asteroids surrounding the leading (L4) and trailing (L5) Lagrange points, viewed as stable groups dating back to planet
Sarah Greenstreet, Brett Gladman, Mario Jurić   +2 more
doaj   +1 more source

On Distributed Gravitational N-Body Simulations

, 2022
The N-body problem is a classic problem involving a system of N discrete bodies mutually interacting in a dynamical system. At any moment in time there are N*(N - 1)/2 such interactions occurring. This scaling as N^2 leads to computational difficulties where simulations range from tens of thousands of bodies to many millions.
openaire   +2 more sources

Recent Progress in Oxide‐Based Na‐Ion Conductors

Advanced Engineering Materials, EarlyView.
Recent advances in oxide‐based sodium‐ion conductors are reviewed, focusing on β/β″‐alumina, NASICON‐type compounds, and Na5YSi4O12‐type (N5) silicates, together with emerging perovskite and layered oxides. Improvements in ionic conductivity, compositional tuning, and processing are highlighted.
Bowei Xun, Jian Wang, Hubertus Rainaldo Arindra, Katsuro Hayashi   +3 more
wiley   +1 more source

Bar Instability and Formation Timescale across Toomre’s Q Parameter and Central Mass Concentration: Slow Bar Formation or True Stability

The Astrophysical Journal
We investigate the bar formation process using N -body simulations across the Toomre’s parameter Q ${}_{{\rm{\min }}}$ and central mass concentration (CMC), focusing principally on the formation timescale.
T. Worrakitpoonpon
doaj   +1 more source

What Do Large Language Models Know About Materials?

Advanced Engineering Materials, EarlyView.
If large language models (LLMs) are to be used inside the material discovery and engineering process, they must be benchmarked for the accurateness of intrinsic material knowledge. The current work introduces 1) a reasoning process through the processing–structure–property–performance chain and 2) a tool for benchmarking knowledge of LLMs concerning ...
Adrian Ehrenhofer, Thomas Wallmersperger, Gianaurelio Cuniberti   +2 more
wiley   +1 more source

Halo Models of Large Scale Structure and Reliability of Cosmological N-Body Simulations

Galaxies, 2013
Halo models of the large scale structure of the Universe are critically examined, focusing on the definition of halos as smooth distributions of cold dark matter. This definition is essentially based on the results of cosmological N-body simulations.
José Gaite
doaj   +1 more source