Results 51 to 60 of about 1,310 (168)

Hydrodynamic instability experiments and simulations [PDF]

open access: yes, 1995
Richtmyer-Meshkov experiments are conducted on the Nova laser with strong radiatively driven shocks (Mach > 20) in planar, two-fluid targets with Atwood number A < 0. Single mode interfacial perturbations are used to test linear theory and 3D random perturbations are used to study turbulent mix.
Dimonte, G.   +2 more
openaire   +2 more sources

Intrinsic alignment of disks and ellipticals across hydrodynamical simulations

open access: yesThe Open Journal of Astrophysics
The correlations between the positions and shapes of galaxies, i.e. intrinsic alignments, have been measured in many observational studies and hydrodynamical simulations.
M. L. van Heukelum, N. E. Chisari
doaj   +1 more source

Relativistic Binary Precession: Impact on Eccentric Massive Binary Black Hole Accretion and Hydrodynamics

open access: yesThe Astrophysical Journal
Recent hydrodynamical simulations have shown that circumbinary gas disks drive the orbits of massive binary black holes (BHs) to become eccentric, even when general relativistic (GR) corrections to the orbit are significant. Here, we study the GR apsidal
Stanislav DeLaurentiis   +6 more
doaj   +1 more source

FLAMINGO: calibrating large cosmological hydrodynamical simulations with machine learning. [PDF]

open access: yesMon Not R Astron Soc, 2023
Kugel R   +19 more
europepmc   +1 more source

3D Radiation-hydrodynamical Simulations of Shadows on Transition Disks

open access: yesThe Astrophysical Journal Letters
Shadows are often observed in transition disks, which can result from obscuring by materials closer to the star, such as a misaligned inner disk. While shadows leave apparent darkened emission as observational signatures, they have significant dynamical ...
Shangjia Zhang, Zhaohuan Zhu
doaj   +1 more source

Vortex Avalanches and Collective Motion in Neutron Stars

open access: yesThe Astrophysical Journal
We simulate the dynamics of about 600 quantum vortices in a spinning-down cylindrical container using a Gross–Pitaevskii model. For the first time, we find convincing spatial-temporal evidence of avalanching behavior resulting from vortex depinning and ...
I-Kang Liu   +3 more
doaj   +1 more source

Morphology and Mach Number Distribution of Merger Shock Surfaces in Merging Galaxy Clusters

open access: yesThe Astrophysical Journal
In a binary merger of two subclusters with comparable masses, a pair of merger shocks are typically generated, often manifesting as double radio relics. Using cosmological hydrodynamic simulations, we identify major merger events with mass ratio $1\lt {{
Eunyu Lee, Dongsu Ryu, Hyesung Kang
doaj   +1 more source

Galaxy catalogs from the Sage Semi-Analytic Model calibrated on The Three Hundred hydrodynamical simulations: A method to push the limits toward lower mass galaxies in dark matter only clusters simulations [PDF]

open access: yesEPJ Web of Conferences
The new generation of upcoming deep photometric and spectroscopic surveys will allow us to measure the astrophysical properties of faint galaxies in massive clusters. This would demand to produce simulations of galaxy clusters with better mass resolution
Gómez Jonathan S.   +3 more
doaj   +1 more source

[C ii] Emission in a Self-regulated Interstellar Medium

open access: yesThe Astrophysical Journal
The [C ii ] 157.74 μ m fine-structure transition is one of the brightest and most well-studied emission lines in the far-infrared, produced in the interstellar medium (ISM) of galaxies.
Alon Gurman   +3 more
doaj   +1 more source

The ASTRID Simulation at z = 0: From Massive Black Holes to Large-scale Structure

open access: yesThe Astrophysical Journal
We present the z = 0 results for the cosmological simulation ASTRID . Hosting 2 × 5500 ^3 ≈ 0.33 trillion particles in a box of 370 Mpc per side, ASTRID is one of the largest cosmological hydrodynamic simulations evolved to z = 0. ASTRID features a large
Yihao Zhou   +9 more
doaj   +1 more source

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