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2019ApJS..243...26P - Astrophys. J., Suppl. Ser., 243, 26-26 (2019/August-0)

The event horizon general relativistic magnetohydrodynamic code comparison project.

PORTH O., CHATTERJEE K., NARAYAN R., GAMMIE C.F., MIZUNO Y., ANNINOS P., BAKER J.G., BUGLI M., CHAN C.-K., DAVELAAR J., DEL ZANNA L., ETIENNE Z.B., FRAGILE P.C., KELLY B.J., LISKA M., MARKOFF S., McKINNEY J.C., MISHRA B., NOBLE S.C., OLIVARES H., PRATHER B., REZZOLLA L., RYAN B.R., STONE J.M., TOMEI N., WHITE C.J., YOUNSI Z., AKIYAMA K., ALBERDI A., ALEF W., ASADA K., AZULAY R., BACZKO A.-K., BALL D., BALOKOVIC M., BARRETT J., BINTLEY D., BLACKBURN L., BOLAND W., BOUMAN K.L., BOWER G.C., BREMER M., BRINKERINK C.D., BRISSENDEN R., BRITZEN S., BRODERICK A.E., BROGUIERE D., BRONZWAER T., BYUN D.-Y., CARLSTROM J.E., CHAEL A., CHATTERJEE S., CHEN M.-T., CHEN Y., CHO I., CHRISTIAN P., CONWAY J.E., CORDES J.M., CREW G.B., CUI Y., DE LAURENTIS M., DEANE R., DEMPSEY J., DESVIGNES G., DOELEMAN S.S., EATOUGH R.P., FALCKE H., FISH V.L., FOMALONT E., FRAGA-ENCINAS R., FREEMAN B., FRIBERG P., FROMM C.M., GOMEZ J.L., GALISON P., GARCIA R., GENTAZ O., GEORGIEV B., GODDI C., GOLD R., GU M., GURWELL M., HADA K., HECHT M.H., HESPER R., HO L.C., HO P., HONMA M., HUANG C.-W.L., HUANG L., HUGHES D.H., IKEDA S., INOUE M., ISSAOUN S., JAMES D.J., JANNUZI B.T., JANSSEN M., JETER B., JIANG W., JOHNSON M.D., JORSTAD S., JUNG T., KARAMI M., KARUPPUSAMY R., KAWASHIMA T., KEATING G.K., KETTENIS M., KIM J.-Y., KIM J., KIM J., KINO M., KOAY J.Y., KOCH P.M., KOYAMA S., KRAMER M., KRAMER C., KRICHBAUM T.P., KUO C.-Y., LAUER T.R., LEE S.-S., LI Y.-R., LI Z., LINDQVIST M., LIU K., LIUZZO E., LO W.-P., LOBANOV A.P., LOINARD L., LONSDALE C., LU R.-S., MacDONALD N.R., MAO J., MARRONE D.P., MARSCHER A.P., MARTI-VIDAL I., MATSUSHITA S., MATTHEWS L.D., MEDEIROS L., MENTEN K.M., MIZUNO I., MORAN J.M., MORIYAMA K., MOSCIBRODZKA M., MULLER C., NAGAI H., NAGAR N.M., NAKAMURA M., NARAYANAN G., NATARAJAN I., NERI R., NI C., NOUTSOS A., OKINO H., OYAMA T., OZEL F., PALUMBO D.C.M., PATEL N., PEN U.-L., PESCE D.W., PIETU V., PLAMBECK R., POPSTEFANIJA A., PRECIADO-LOPEZ J.A., PSALTIS D., PU H.-Y., RAMAKRISHNAN V., RAO R., RAWLINGS M.G., RAYMOND A.W., RIPPERDA B., ROELOFS F., ROGERS A., ROS E., ROSE M., ROSHANINESHAT A., ROTTMANN H., ROY A.L., RUSZCZYK C., RYGL K.L.J., SANCHEZ S., SANCHEZ-ARGUELLES D., SASADA M., SAVOLAINEN T., SCHLOERB F.P., SCHUSTER K.-F., SHAO L., SHEN Z., SMALL D., SOHN B.W., SOOHOO J., TAZAKI F., TIEDE P., TILANUS R.P.J., TITUS M., TOMA K., TORNE P., TRENT T., TRIPPE S., TSUDA S., VAN BEMMEL I., VAN LANGEVELDE H.J., VAN ROSSUM D.R., WAGNER J., WARDLE J., WEINTROUB J., WEX N., WHARTON R., WIELGUS M., WONG G.N., WU Q., YOUNG K., YOUNG A., YUAN F., YUAN Y.-F., ZENSUS J.A., ZHAO G., ZHAO S.-S., ZHU Z. (The Event Horizon Telescope Collaboration)

Abstract (from CDS):

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.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): black hole physics - magnetic fields - magnetohydrodynamics MHD - methods: numerical - relativistic processes

Simbad objects: 3

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