The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project

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The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project. / Event Horizon Telescope Collaborat ; Savolainen, Tuomas.

In: Astrophysical Journal Supplement Series, Vol. 243, No. 2, 26, 08.2019.

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@article{d1d05ca2e6274beaad88d2c709f82e53,
title = "The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project",
abstract = "Recent developments in compact object astrophysics, especially the discovery of merging neutron stars by LIGO, the imaging of the black hole in M87 by the Event Horizon Telescope, and high- precision astrometry of the Galactic Center at close to the event horizon scale by the GRAVITY experiment motivate the development of numerical source models that solve the equations of general relativistic magnetohydrodynamics (GRMHD). Here we compare GRMHD solutions for the evolution of a magnetized accretion flow where turbulence is promoted by the magnetorotational instability from a set of nine GRMHD codes: Athena++, BHAC, Cosmos++, ECHO, H-AMR, iharm3D, HARM-Noble, IllinoisGRMHD, and KORAL. Agreement among the codes improves as resolution increases, as measured by a consistently applied, specially developed set of code performance metrics. We conclude that the community of GRMHD codes is mature, capable, and consistent on these test problems.",
keywords = "black hole physics, magnetic fields, magnetohydrodynamics (MHD), methods: numerical, relativistic processes, BLACK-HOLE ACCRETION, ADVECTION-DOMINATED ACCRETION, SGR A-ASTERISK, GODUNOV-TYPE SCHEMES, MAGNETOROTATIONAL INSTABILITY, MAGNETIZED ACCRETION, EDDINGTON ACCRETION, GLOBAL SIMULATIONS, NUMERICAL SCHEME, NEUTRON-STARS",
author = "{Event Horizon Telescope Collaborat} and Oliver Porth and Koushik Chatterjee and Ramesh Narayan and Gammie, {Charles F.} and Yosuke Mizuno and Peter Anninos and Baker, {John G.} and Matteo Bugli and Chi-kwan Chan and Jordy Davelaar and {Del Zanna}, Luca and Etienne, {Zachariah B.} and Fragile, {P. Chris} and Kelly, {Bernard J.} and Matthew Liska and Sera Markoff and McKinney, {Jonathan C.} and Bhupendra Mishra and Noble, {Scott C.} and Hector Olivares and Ben Prather and Luciano Rezzolla and Ryan, {Benjamin R.} and Stone, {James M.} and Niccolo Tomei and White, {Christopher J.} and Ziri Younsi and Kazunori Akiyama and Antxon Alberdi and Walter Alef and Keiichi Asada and Rebecca Azulay and Anne-Kathrin Baczko and David Ball and Mislav Balokovic and John Barrett and Dan Bintley and Lindy Blackburn and Wilfred Boland and Bouman, {Katherine L.} and Bower, {Geoffrey C.} and Michael Bremer and Brinkerink, {Christiaan D.} and Roger Brissenden and Silke Britzen and Broderick, {Avery E.} and Dominique Broguiere and Venkatessh Ramakrishnan and Tuomas Savolainen and Jan Wagner",
year = "2019",
month = "8",
doi = "10.3847/1538-4365/ab29fd",
language = "English",
volume = "243",
journal = "Astrophysical Journal Supplement Series",
issn = "0067-0049",
number = "2",

}

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TY - JOUR

T1 - The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project

AU - Event Horizon Telescope Collaborat

AU - Porth, Oliver

AU - Chatterjee, Koushik

AU - Narayan, Ramesh

AU - Gammie, Charles F.

AU - Mizuno, Yosuke

AU - Anninos, Peter

AU - Baker, John G.

AU - Bugli, Matteo

AU - Chan, Chi-kwan

AU - Davelaar, Jordy

AU - Del Zanna, Luca

AU - Etienne, Zachariah B.

AU - Fragile, P. Chris

AU - Kelly, Bernard J.

AU - Liska, Matthew

AU - Markoff, Sera

AU - McKinney, Jonathan C.

AU - Mishra, Bhupendra

AU - Noble, Scott C.

AU - Olivares, Hector

AU - Prather, Ben

AU - Rezzolla, Luciano

AU - Ryan, Benjamin R.

AU - Stone, James M.

AU - Tomei, Niccolo

AU - White, Christopher J.

AU - Younsi, Ziri

AU - Akiyama, Kazunori

AU - Alberdi, Antxon

AU - Alef, Walter

AU - Asada, Keiichi

AU - Azulay, Rebecca

AU - Baczko, Anne-Kathrin

AU - Ball, David

AU - Balokovic, Mislav

AU - Barrett, John

AU - Bintley, Dan

AU - Blackburn, Lindy

AU - Boland, Wilfred

AU - Bouman, Katherine L.

AU - Bower, Geoffrey C.

AU - Bremer, Michael

AU - Brinkerink, Christiaan D.

AU - Brissenden, Roger

AU - Britzen, Silke

AU - Broderick, Avery E.

AU - Broguiere, Dominique

AU - Ramakrishnan, Venkatessh

AU - Savolainen, Tuomas

AU - Wagner, Jan

PY - 2019/8

Y1 - 2019/8

N2 - Recent developments in compact object astrophysics, especially the discovery of merging neutron stars by LIGO, the imaging of the black hole in M87 by the Event Horizon Telescope, and high- precision astrometry of the Galactic Center at close to the event horizon scale by the GRAVITY experiment motivate the development of numerical source models that solve the equations of general relativistic magnetohydrodynamics (GRMHD). Here we compare GRMHD solutions for the evolution of a magnetized accretion flow where turbulence is promoted by the magnetorotational instability from a set of nine GRMHD codes: Athena++, BHAC, Cosmos++, ECHO, H-AMR, iharm3D, HARM-Noble, IllinoisGRMHD, and KORAL. Agreement among the codes improves as resolution increases, as measured by a consistently applied, specially developed set of code performance metrics. We conclude that the community of GRMHD codes is mature, capable, and consistent on these test problems.

AB - Recent developments in compact object astrophysics, especially the discovery of merging neutron stars by LIGO, the imaging of the black hole in M87 by the Event Horizon Telescope, and high- precision astrometry of the Galactic Center at close to the event horizon scale by the GRAVITY experiment motivate the development of numerical source models that solve the equations of general relativistic magnetohydrodynamics (GRMHD). Here we compare GRMHD solutions for the evolution of a magnetized accretion flow where turbulence is promoted by the magnetorotational instability from a set of nine GRMHD codes: Athena++, BHAC, Cosmos++, ECHO, H-AMR, iharm3D, HARM-Noble, IllinoisGRMHD, and KORAL. Agreement among the codes improves as resolution increases, as measured by a consistently applied, specially developed set of code performance metrics. We conclude that the community of GRMHD codes is mature, capable, and consistent on these test problems.

KW - black hole physics

KW - magnetic fields

KW - magnetohydrodynamics (MHD)

KW - methods: numerical

KW - relativistic processes

KW - BLACK-HOLE ACCRETION

KW - ADVECTION-DOMINATED ACCRETION

KW - SGR A-ASTERISK

KW - GODUNOV-TYPE SCHEMES

KW - MAGNETOROTATIONAL INSTABILITY

KW - MAGNETIZED ACCRETION

KW - EDDINGTON ACCRETION

KW - GLOBAL SIMULATIONS

KW - NUMERICAL SCHEME

KW - NEUTRON-STARS

U2 - 10.3847/1538-4365/ab29fd

DO - 10.3847/1538-4365/ab29fd

M3 - Article

VL - 243

JO - Astrophysical Journal Supplement Series

JF - Astrophysical Journal Supplement Series

SN - 0067-0049

IS - 2

M1 - 26

ER -

ID: 37081388