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Paper: Assessing Ring-Diagram Fitting Methods
Volume: 478, Fifty Years of Seismology of the Sun and Stars
Page: 193
Authors: Jain, K.; Tripathy, S. C.; Basu, S.; Baldner, C. S.; Bogart, R. S.; Hill, F.; Howe, R.
Abstract: The ring-diagram technique is widely used to study oscillation mode parameters and dynamics of the sub-surface layers of the Sun. In this technique, the three-dimensional power spectrum is fitted to a model to calculate mode parameters. The fitted velocities are then inverted to infer the depth dependence of sub-surface flows. Here, we examine the influence of various models on inferred quantities and also compare results obtained with contemporaneous Dopplergrams from SDO/HMI and GONG.
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