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To better constrain models of cool core galaxy cluster formation, we have used X-ray observations taken from the Chandra and ROSAT archives to examine the properties of cool core and non-cool core clusters, especially beyond the cluster…

Cosmology and Nongalactic Astrophysics · Physics 2010-01-15 Jason W. Henning , Brennan Gantner , Jack O. Burns , Eric J. Hallman

Efficient numerical methods are promising tools for delivering unique insights into the fascinating properties of physics, such as the highly frustrated quantum many-body systems. However, the computational complexity of obtaining the wave…

Strongly Correlated Electrons · Physics 2022-06-17 Mingfan Li , Junshi Chen , Qian Xiao , Qingcai Jiang , Xuncheng Zhao , Rongfen Lin , Fei Wang , Hong An , Xiao Liang , Lixin He

I review cosmological simulations of X-ray clusters. Simulations have increased in resolution dramatically and the effects of radiative cooling, star formation feedback, and chemical enrichment on the ICM are being simulated. The structure…

Astrophysics · Physics 2007-05-23 Michael L. Norman

We introduce the new TNG-Cluster project, an addition to the IllustrisTNG suite of cosmological magnetohydrodynamical simulations of galaxy formation. Our objective is to significantly increase the statistical sampling of the most massive…

Astrophysics of Galaxies · Physics 2024-03-08 Dylan Nelson , Annalisa Pillepich , Mohammadreza Ayromlou , Wonki Lee , Katrin Lehle , Eric Rohr , Nhut Truong

The simulated matter distribution on large scales is studied using core-sampling, cluster analysis, inertia tensor analysis, and minimal spanning tree techniques. Seven simulations in large boxes for five cosmological models with COBE…

Astrophysics · Physics 2011-07-19 A. G. Doroshkevich , V. Müller , J. Retzlaff , V. Turchaninov

Emerging new technologies in plasma simulations allow tracking billions of particles while computing their radiative spectra. We present a visualization of the relativistic Kelvin-Helmholtz Instability from a simulation performed with the…

Plasma Physics · Physics 2014-07-01 Axel Huebl , David Pugmire , Felix Schmitt , Richard Pausch , Michael Bussmann

Simulations of the formation of late-type spiral galaxies in a cold dark matter LCDM universe have traditionally failed to yield realistic candidates. Here we report a new cosmological N-body/SPH simulation of extreme dynamic range in which…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Javiera Guedes , Simone Callegari , Piero Madau , Lucio Mayer

The need for computational resources grows as computational algorithms gain popularity in different sectors of the scientific community. This search has stimulated the development of several cloud platforms that abstract the complexity of…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-01-18 Henrique C. T. Santos , Luciano S. de Souza , Jonathan H. A. de Carvalho , Tiago A. E. Ferreira

In this study we explore the complex multi-phase gas of the circumgalactic medium (CGM) surrounding galaxies. We propose and implement a novel, super-Lagrangian 'CGM zoom' scheme in the moving-mesh code AREPO, which focuses more resolution…

Astrophysics of Galaxies · Physics 2018-12-26 Joshua Suresh , Dylan Nelson , Shy Genel , Kate Rubin , Lars Hernquist

I review four decades of numerical simulations of galaxy clusters focussing on the attempts to resolve their internal structure. Overmerging describes the numerical or physical disruption of dark matter halos within dense environments. This…

Astrophysics · Physics 2007-05-23 Ben Moore

Classical simulations of quantum circuits are limited in both space and time when the qubit count is above 50, the realm where quantum supremacy reigns. However, recently, for the low depth circuit with more than 50 qubits, there are…

Quantum Physics · Physics 2018-08-15 Zhao-Yun Chen , Qi Zhou , Cheng Xue , Xia Yang , Guang-Can Guo , Guo-Ping Guo

We present the first results of one extremely high resolution, non-radiative magnetohydrodynamical cosmological zoom-in simulation of a massive cluster with a virial mass M$_\mathrm{vir} = 2.0 \times 10^{15}$ solar masses. We adopt a mass…

Cosmology and Nongalactic Astrophysics · Physics 2023-06-09 Ulrich P. Steinwandel , Klaus Dolag , Ludwig Böss , Tirso Marin-Gilabert

Simulations of dusty plasmas were performed using GRAPE-6, a special-purpose computer designed for gravitational N-body problems. The collective behaviour of dust particles, which are injected into the plasma, was studied by means of…

Plasma Physics · Physics 2007-05-23 Keisuke Yamamoto , Yasunori Mizuno , Hiroshi Inuzuka , Yonggao Cao , Yan Liu , Kenichi Yazawa

Hybrid computational architectures based on the joint power of Central Processing Units and Graphic Processing Units (GPUs) are becoming popular and powerful hardware tools for a wide range of simulations in biology, chemistry, engineering,…

Instrumentation and Methods for Astrophysics · Physics 2015-06-15 Roberto Capuzzo-Dolcetta , Mario Spera

Manycore System-on-Chip include an increasing amount of processing elements and have become an important research topic for improvements of both hardware and software. While research can be conducted using system simulators, prototyping…

Hardware Architecture · Computer Science 2013-04-19 Stefan Wallentowitz , Philipp Wagner , Michael Tempelmeier , Thomas Wild , Andreas Herkersdorf

For decades, researchers have been applying computer simulation to address problems in biology. However, many of these "grand challenges" in computational biology, such as simulating how proteins fold, remained unsolved due to their great…

Biological Physics · Physics 2009-01-08 Stefan M. Larson , Christopher D. Snow , Michael Shirts , Vijay S. Pande

The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will soon carry out an unprecedented wide, fast, and deep survey of the sky in multiple optical bands. The data from LSST will open up a new discovery space in astronomy…

Instrumentation and Methods for Astrophysics · Physics 2021-10-04 A. S. Villarreal , Yadu Babuji , Tom Uram , Daniel S. Katz , Kyle Chard , Katrin Heitmann

We describe source code level parallelization for the {\tt kira} direct gravitational $N$-body integrator, the workhorse of the {\tt starlab} production environment for simulating dense stellar systems. The parallelization strategy, called…

Programmable quantum simulators such as superconducting quantum processors and ultracold atomic lattices represent rapidly developing emergent technology that may one day qualitatively outperform existing classical computers. Yet, apart…

Strongly Correlated Electrons · Physics 2025-03-11 Jin Ming Koh , Tommy Tai , Ching Hua Lee
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