• Login
    View Item 
    •   Maryland Shared Open Access Repository Home
    • ScholarWorks@UMBC
    • UMBC College of Natural and Mathematical Sciences
    • UMBC Physics Department
    • View Item
    •   Maryland Shared Open Access Repository Home
    • ScholarWorks@UMBC
    • UMBC College of Natural and Mathematical Sciences
    • UMBC Physics Department
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project

    Thumbnail
    Files
    1904.04923.pdf (9.878Mb)
    Links to Files
    https://arxiv.org/pdf/1904.04923.pdf
    Permanent Link
    http://hdl.handle.net/11603/13879
    Collections
    • UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
    • UMBC Faculty Collection
    • UMBC Physics Department
    Metadata
    Show full item record
    Author/Creator
    Porth, Oliver
    Chatterjee, Koushik
    Narayan, Ramesh
    Date
    2019-04-11
    Type of Work
    51 pages
    Text
    journal articles preprints
    Citation of Original Publication
    Oliver Porth, et.al, The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project, 2019, https://arxiv.org/pdf/1904.04923.pdf
    Rights
    This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
    Subjects
    numerical methods
    magnetohydrodynamics (MHD)
    magnetic fields
    general relativity
    black hole physics
    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 (EHT) 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 between 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.


    Albin O. Kuhn Library & Gallery
    University of Maryland, Baltimore County
    1000 Hilltop Circle
    Baltimore, MD 21250
    www.umbc.edu/scholarworks

    Contact information:
    Email: scholarworks-group@umbc.edu
    Phone: 410-455-3544


    If you wish to submit a copyright complaint or withdrawal request, please email mdsoar-help@umd.edu.

     

     

    My Account

    LoginRegister

    Browse

    This CollectionBy Issue DateTitlesAuthorsSubjectsType

    Statistics

    View Usage Statistics


    Albin O. Kuhn Library & Gallery
    University of Maryland, Baltimore County
    1000 Hilltop Circle
    Baltimore, MD 21250
    www.umbc.edu/scholarworks

    Contact information:
    Email: scholarworks-group@umbc.edu
    Phone: 410-455-3544


    If you wish to submit a copyright complaint or withdrawal request, please email mdsoar-help@umd.edu.