60 citations · 166 across the 3 of their papers we have counts for
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astro-ph2008★ 58 cited
Prospects for the Detection of the Deep Solar Meridional Circulation
D. C. Braun, A. C. Birch
We perform helioseismic holography to assess the noise in p-mode travel-time shifts which would form the basis of inferences of large-scale flows throughout the solar convection zo…
astro-ph2008★ 60 cited
Surface-focused Seismic Holography of Sunspots: I. Observations
D. C. Braun, A. C. Birch
We present a comprehensive set of observations of the interaction of p-mode oscillations with sunspots using surface-focused seismic holography. Maps of travel-time shifts, relativ…
astro-ph2006★ 48 cited
Sensitivity of time-distance helioseismic measurements to spatial variation of oscillation amplitudes I. Observations and a numerical model
S. P. Rajaguru, A. C. Birch, T. L. Duvall +2
It is well known that the observed amplitude of solar oscillations is lower in sunspots than in quiet regions of the Sun. We show that this local reduction in oscillation amplitude…