Exploitation of Space Data for Innovative Helio- and Asteroseismology

    Helioseismology












    Systematic effects

    Collected documents/information

    documentsdataprovideras of
    HMI documents
    various plots (e.g.,data coverage, focus, velocity of the instruments), see readme.txt for detail.
    SDO/HMIR. Bush (Stanford Univ.)see link (readme.txt)
    SDO/HMI systematics SDO/HMI S. Couvidat (Stanford Univ.)July 2014
    Center-to-Limb Velocity Systematic in Ring-Diagram Anaylysis
    article in ASP conf. proceedings
    SDO/HMI B. Greer, B. Hindman, J. Toomre published in 2013
    Multi-Ridge Fitting for Ring-Diagram Helioseismology
    article in SoPh
    SDO/HMI B. Greer, B. Hindman, J. Toomre published in 2014
    Ring-diagram analysis paper which includes SDO/HMI systematics info
    article in ApJ, (arXiv)
    SDO/HMIR. S. Bogart, C. Baldner, S. Basupublished in 2015
    Paper about the systematics in ring-diagram analysis
    article in SoPh
    GONG, SDO/HMIR. Komm, I. Gonzalez Hernandez, R. Howe, F. Hillpublished in 2015
    Paper "The radial gradient of the near-surface shear layer of the Sun" article in A&A
    (They show some systematic errors went away in high degree f modes and reported that probably HMI splitting frequency data suffers from systematics errors.)
    SOHO/MDI, SDO/HMIA. Barekat, J. Schou, L. Gizon published in 2015
    Systematic errors of MDI global helioseismology data
    article in SoPh
    SOHO/MDIT. Larson, J. Schoupublished in 2015
    Paper about systematic center-to-limb variation in time-distance helioseismoogy analysis
    article in ApJ
    SDO/HMI, SDO/AIAJ. Zhao, K. Nagashima, R. S. Bogart, A. G. Kosovichev, T. L. Duvalpublished in 2012

    Contact: Kaori Nagashima (nagashima [at] mps.mpg.de) .