TY - JOUR
T1 - The event horizon general relativistic magnetohydrodynamic code comparison project
AU - The Event Horizon Telescope Collaboration
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 - Zanna, Luca Del
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, Héctor
AU - Prather, Ben
AU - Rezzolla, Luciano
AU - Ryan, Benjamin R.
AU - Stone, James M.
AU - Tomei, Niccolò
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 - Baloković, 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 - Bronzwaer, Thomas
AU - Byun, Do Young
AU - Pu, Hung Yi
N1 - Publisher Copyright:
© 2019. The American Astronomical Society. All rights reserved.
PY - 2019
Y1 - 2019
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
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U2 - 10.3847/1538-4365/ab29fd
DO - 10.3847/1538-4365/ab29fd
M3 - Article
AN - SCOPUS:85080950857
SN - 0067-0049
VL - 243
JO - Astrophysical Journal, Supplement Series
JF - Astrophysical Journal, Supplement Series
IS - 2
M1 - 243
ER -