activity
20102026
most citedImproving the convergence properties of the moving-mesh code AREPO

370 citations · 2.5k across the 53 of their papers we have counts for

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Showing astro-ph.GAShow all

20 papers · 1 filter

astro-ph.GA2026

Strong Stellar Diffusion from Wave DM Cosmological Simulation and Potential Unified Origin for dSphs, UFGs, and UDGs

A. Pozo, T. Broadhurst, J. Zhang +6

Our DM simulations predict that stars diffuse throughout dark matter halos over the Hubble time through a random walk driven by the wave perturbations intrinsic to DM. The re…

astro-ph.GA2025

Development of Turbulence in Post-shock Regions

Michael M. Foley, Philip Mocz, Blakesley Burkhart +2

Supersonic isothermal turbulence is ubiquitous in the interstellar medium. This work presents high-resolution AREPO hydrodynamical simulations of isolated shocks moving through sup…

astro-ph.GA2024

Tracing 3-D Magnetic Field Structure Using Dust Polarization and the Zeeman Effect

Brandon Shane, Blakesley Burkhart, Laura Fissel +3

The characterization of magnetic fields within molecular clouds is fundamental to understanding star formation processes. Accurately gauging the three-dimensional structure of thes…

astro-ph.GA2024

A smooth filament origin for distant prolate galaxies seen by JWST and HST

Alvaro Pozo, Tom Broadhurst, Razieh Emami +7

The initial gravitational collapse of Dark Matter and gas forms a universal filamentary network where the first galaxies form, with shapes and sizes that depend on the choice of Da…

astro-ph.GA2023★ 26 cited

Structure, Kinematics, and Observability of the Large Magellanic Cloud's Dynamical Friction Wake in Cold vs. Fuzzy Dark Matter

Hayden R. Foote, Gurtina Besla, Philip Mocz +7

The Large Magellanic Cloud (LMC) will induce a dynamical friction (DF) wake on infall to the Milky Way (MW). The MW's stellar halo will respond to the gravity of the LMC and the da…

astro-ph.GA2022★ 12 cited

Growth or Decay -- I: universality of the turbulent dynamo saturation

James R. Beattie, Christoph Federrath, Neco Kriel +2

The turbulent small-scale dynamo (SSD) is likely to be responsible for the magnetisation of the interstellar medium (ISM) that we observe in the Universe today. The SSD efficiently…

astro-ph.GA2022★ 17 cited

Energy balance and Alfvén Mach numbers in compressible magnetohydrodynamic turbulence with a large-scale magnetic field

James R. Beattie, Mark R. Krumholz, Raphael Skalidis +5

Energy equipartition is a powerful theoretical tool for understanding astrophysical plasmas. It is invoked, for example, to measure magnetic fields in the interstellar medium (ISM)…

astro-ph.GA2021★ 20 cited

The density distribution and physical origins of intermittency in supersonic, highly magnetised turbulence with diverse modes of driving

James R. Beattie, Philip Mocz, Christoph Federrath +1

The probability density function (PDF) of the logarithmic density contrast, , with gas density and mean density , for hydrodynamical supersonic turbulence i…

astro-ph.GA2021★ 31 cited

A multi-shock model for the density variance of anisotropic, highly-magnetised, supersonic turbulence

James R. Beattie, Philip Mocz, Christoph Federrath +1

Shocks form the basis of our understanding for the density and velocity statistics of supersonic turbulent flows, such as those found in the cool interstellar medium (ISM). The var…

astro-ph.GA2020★ 18 cited

The Catalogue for Astrophysical Turbulence Simulations (CATS)

B. Burkhart, S. Appel, S. Bialy +18

Turbulence is a key process in many fields of astrophysics. Advances in numerical simulations of fluids over the last several decades have revolutionized our understanding of turbu…

astro-ph.GA2019★ 161 cited

First star-forming structures in fuzzy cosmic filaments

Philip Mocz, Anastasia Fialkov, Mark Vogelsberger +10

In hierarchical models of structure formation, the first galaxies form in low-mass dark matter potential wells, probing the behavior of dark matter on kiloparsec (kpc) scales. Even…

astro-ph.GA2019★ 81 cited

Fuzzy Dark Matter Soliton Cores around Supermassive Black Holes

Elliot Yarnell Davies, Philip Mocz

We explore the effect of a supermassive black hole (SMBH) on the density profile of a fuzzy dark matter (FDM) soliton core at the centre of a dark matter halo. We numerically solve…

astro-ph.GA2019★ 25 cited

A Markov model for non-lognormal density distributions in compressive isothermal turbulence

Philip Mocz, Blakesley Burkhart

Compressive isothermal turbulence is known to have a near lognormal density probability distribution function (PDF) with a width that scales with the sonic Mach number and nature o…

astro-ph.GA2018★ 87 cited

Heating of Milky Way disc Stars by Dark Matter Fluctuations in Cold Dark Matter and Fuzzy Dark Matter Paradigms

Benjamin V. Church, Jeremiah P. Ostriker, Philip Mocz

Although highly successful on cosmological scales, Cold Dark Matter (CDM) models predict unobserved over-dense `cusps' in dwarf galaxies and overestimate their formation rate. We c…

astro-ph.GA2018★ 46 cited

Star formation from dense shocked regions in supersonic isothermal magneto-turbulence

Philip Mocz, Blakesley Burkhart

Supersonic isothermal turbulence establishes a network of transient dense shocks that sweep up material and have a density profile described by balance between ram pressure of the…

astro-ph.GA2018★ 59 cited

The Self-gravitating Gas Fraction and The Critical Density for Star Formation

Blakesley Burkhart, Philip Mocz

We analytically calculate the star formation efficiency and dense self-gravitating gas fraction in the presence of magneto-gravo-turbulence using the model of Burkhart (2018), whic…

astro-ph.GA2017★ 98 cited

Unveiling the Role of the Magnetic Field at the Smallest Scales of Star Formation

Charles L. H. Hull, Philip Mocz, Blakesley Burkhart +7

We report ALMA observations of polarized dust emission from the protostellar source Ser-emb 8 at a linear resolution of 140 au. Assuming models of dust-grain alignment hold, the ob…

astro-ph.GA2017★ 94 cited

Moving mesh simulations of star forming cores in magneto-gravo-turbulence

Philip Mocz, Blakesley Burkhart, Lars Hernquist +2

Star formation in our Galaxy occurs in molecular clouds that are self-gravitating, highly turbulent, and magnetized. We study the conditions under which cloud cores inherit large-s…

astro-ph.GA2016★ 5 cited

Integer Lattice Dynamics for Vlasov-Poisson

Philip Mocz, Sauro Succi

We revisit the integer lattice (IL) method to numerically solve the Vlasov-Poisson equations, and show that a slight variant of the method is a very easy, viable, and efficient num…

astro-ph.GA2015★ 370 cited

Improving the convergence properties of the moving-mesh code AREPO

Ruediger Pakmor, Volker Springel, Andreas Bauer +5

Accurate numerical solutions of the equations of hydrodynamics play an ever more important role in many fields of astrophysics. In this work, we reinvestigate the accuracy of the m…