14 papers
Braginskii Viscosity in Cosmological Simulations of Galaxy Clusters: Implementation, Validation, and First Application
Tirso Marin-Gilabert, Ulrich P. Steinwandel, Milena Valentini +2
We present the implementation of an anisotropic viscosity solver within the magnetohydrodynamics (MHD) framework of the TreeSPH code OpenGadget3. The solver models anisotropic visc…
Improving divergence cleaning in cosmological SPMHD simulations
Ulrich P. Steinwandel, Daniel J. Price
We implement the constrained hyperbolic/parabolic divergence cleaning algorithm into the cosmological smoothed particle magnetohydrodynamics (SPMHD) code {\sc OpenGadget3}, modifyi…
Learning the Universe: Constrained simulations of the Coma galaxy cluster -- I. Radial X-ray and Compton-y signatures
Ulrich P. Steinwandel, Stuart McAlpine, Richard Stiskalek +7
We present a suite of 50 high-fidelity simulations of Coma cluster analogues constructed from BORG/MANTICORE constrained initial conditions and evolved with the IllustrisTNG galaxy…
Learning the Universe with PRFM-vol: Introducing a new subgrid model for star formation in cosmological simulations
Jan D. Burger, Volker Springel, Eve C. Ostriker +7
We introduce PRFM-vol, a new subgrid model for star formation in cosmological simulations that aims to increase the physical realism of cosmological simulations by leveraging resul…
The GHOSDT Simulations: II. Missing H in Simulations of a Self-Regulated Interstellar Medium
Alon Gurman, Chia-Yu Hu, Michael Y. Grudic +2
Observations in the Galaxy and nearby spirals have established that the HI-to-H transition at solar metallicity occurs at gas weight of $P_{\rm DE}/k_B\approx 10^4 \ \rm K \ cm…
Simulating the LOcal Web (SLOW) -- VI: Gamma-ray Emission in the Local Universe
Ludwig M. Böss, Ildar Khabibullin, Daniel Karner +4
Context: Diffuse -ray emission from cosmic-ray (CR) protons scattering off the gas in the intracluster and intergalactic medium remains out of reach for current observations. D…