Affiliation
Indian Institute of Astrophysics, Bangalore and Tata Institute of Fundamental Research, Mumbai
Main category
Natural Sciences (Astrophysics and Astrononmy)
Abstract
We present results on travel time measurements for different frequencies through
Gaussian frequency filtering of time-distance cross-correlation signals. We show
that the center-to-limb systematics inferred through WE travel time measurements
have a dominant frequency dependence, peaking at about 4 mHz. The subtraction of
such travel times from the NS travel times leads to a strong frequency
dependence in the resulting meridional flow signals too thus yielding flow
structures dependent on frequency. In particular, we
find multiple-cell structure for frequencies above 3.7 mHz.
Further reading
Other presentations in the conference
DOI
10.18147/smn.2017/presentation:241
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