Results 51 to 60 of about 5,542,291 (347)

Dark-matter-deficient galaxies in hydrodynamical simulations [PDF]

Monthly notices of the Royal Astronomical Society, 2018
Low-mass galaxies are expected to be dark-matter-dominated even within their central regions. Recently, two observations reported two dwarf galaxies in a group environment with very little dark matter in their central regions. We explore the population
Yingjie Jing, Chunxiang Wang, Ran Li, Shihong Liao, Jie-Shuang Wang, Q. Guo, Liang Gao   +6 more
semanticscholar   +1 more source

Hydrodynamical Simulations of Recollimation Shocks within Relativistic Astrophysical Jets

Galaxies, 2018
Astrophysical jets launched from active galactic nuclei can remain tightly collimated over large distances due, in part, to recollimation shocks.
Christopher D. Kaye, Timothy V. Cawthorne, Philip A. Hughes   +2 more
doaj   +1 more source

Robust Field-level Likelihood-free Inference with Galaxies

The Astrophysical Journal, 2023
We train graph neural networks to perform field-level likelihood-free inference using galaxy catalogs from state-of-the-art hydrodynamic simulations of the CAMELS project.
Natalí S. M. de Santi, Helen Shao, Francisco Villaescusa-Navarro, L. Raul Abramo, Romain Teyssier, Pablo Villanueva-Domingo, Yueying Ni, Daniel Anglés-Alcázar, Shy Genel, Elena Hernández-Martínez, Ulrich P. Steinwandel, Christopher C. Lovell, Klaus Dolag, Tiago Castro, Mark Vogelsberger   +14 more
doaj   +1 more source

Identification of gravity waves in hydrodynamical simulations

, 2004
The excitation of internal gravity waves by an entropy bubble oscillating in an isothermal atmosphere is investigated using direct two-dimensional numerical simulations.
A. Brandenburg, B. Dintrans, Bogdan, Brandenburg, Brandenburg, Brummell, Cowling, Dintrans, Dintrans, Gabriel, Hurlburt, Hurlburt, Kumar, Lamb, Lele, Nordlund, Nordlund, Rieutord, Schatzman, Stein, Stein, Stein, Talon   +22 more
core   +3 more sources

Numerical simulation of the dynamics of sedimentary river beds with a stochastic Exner equation

ESAIM: Proceedings and Surveys, 2015
At the scale of a river reach, the dynamics of the river bed is typically modelled by Exner equation (conservation of the solid mass) with an empirical solid flux of transported sediments, which is a simple deterministic algebraic ...
Audusse Emmanuel, Boyaval Sébastien, Goutal Nicole, Jodeau Magali, Ung Philippe   +4 more
doaj   +1 more source

Hydrodynamical Simulations of the IGM at High Mach Numbers [PDF]

, 2002
We present a new approach to doing Eulerian computational fluid dynamics that is designed to work at high Mach numbers encountered in hydrodynamical simulations of the IGM.
C-P Ma, D Limber, E Vishniac, RA Sunyaev, RA Sunyaev, U Pen, V Springel, W Hu   +7 more
core   +2 more sources

Chemical enrichment of galaxy clusters from hydrodynamical simulations

, 2007
We present cosmological hydrodynamical simulations of galaxy clusters aimed at studying the process of metal enrichment of the intra--cluster medium (ICM).
Arimoto, Balestra, Bate, Baumgartner, Bertelli, Borgani, Cen, Chiappini, Chiappini, Chieffi, Cora, Dalla Vecchia, Davé, De Grandi, De Lucia, Dolag, Domainko, F. Matteucci, Finoguenov, Finoguenov, François, Gal-Yam, Gal-Yam, Gastaldello, Gibson, Greggio, Haardt, Iwamoto, K. Dolag, Katz, Kawata, Kay, Kennicutt, Kobayashi, Kroupa, L. Tornatore, Larson, Lia, Loewenstein, Maeder, Maoz, Marigo, Matteucci, Matteucci, Matteucci, Matteucci, Matteucci, Mazzotta, Monaco, Mosconi, Murante, Mushotzky, Nagashima, Navarro, Padovani, Pipino, Portinari, Portinari, Raiteri, Rasia, Rasia, Rebusco, Recchi, Renzini, Renzini, Renzini, Roediger, Romano, Romeo, Rosati, S. Borgani, Salpeter, Samland, Sarazin, Saro, Scalo, Scannapieco, Scannapieco, Schmidt, Sijacki, Sijacki, Sommer-Larsen, Springel, Springel, Springel, Springel, Springel, Springel, Strickland, Sutherland, Tamura, Theis, Thielemann, Tormen, Tornatore, Tutukov, Valdarnini, Van Den Hoek, Vikhlinin, Vikhlinin, Voit, Woosley, Yoshikawa   +102 more
core   +2 more sources

Hydrodynamical simulations of galaxy properties: Environmental effects [PDF]

, 1998
Using N-body+hydro simulations we study relations between the local environments of galaxies on 0.5 Mpc scale and properties of the luminous components of galaxies.
Elizondo, D., Kates, R., Klypin, A., Yepes, G.   +3 more
core   +2 more sources

Hydrodynamical Simulations of Nuclear Rings in Barred Galaxies

, 2015
Dust lanes, nuclear rings, and nuclear spirals are typical gas structures in the inner region of barred galaxies. Their shapes and properties are linked to the physical parameters of the host galaxy.
Kim, Woong-Tae, Li, Zhi, Shen, Juntai
core   +1 more source

Comparative Wear and Friction Analysis of Sliding Surface Materials for Hydrostatic Bearing under Oil Supply Failure Conditions

Advanced Engineering Materials, EarlyView.
Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec, Lukáš Daněk, Jan Foltýn, Petr Svoboda, Carsten Gachot, Martin Hartl, Ivan Křupka   +6 more
wiley   +1 more source