61 citations · 286 across the 12 of their papers we have counts for
12 papers
Probing the Solar Meridional Circulation using Fourier Legendre Decomposition
D. C. Braun, A. C. Birch, Y. Fan
We apply the helioseismic methodology of Legendre Function Decomposition to 88 months of Dopplergrams obtained by the Helioseismic and Magnetic Imager (HMI) as the basis of inferri…
Flows around Averaged Solar Active Regions
D. C. Braun
We explore the general properties of near-surface flows around solar active regions. Helioseismic holography is applied to HMI Dopplergrams yielding nearly 5000 flow measurements o…
Helioseismic Holography of Simulated Sunspots: dependence of the travel time on magnetic field strength and Wilson depression
T. Felipe, D. C. Braun, A. C. Birch
Improving methods for determining the subsurface structure of sunspots from their seismic signature requires a better understanding of the interaction of waves with magnetic field…
A Fixed-point Scheme for the Numerical Construction of Magnetohydrostatic Atmospheres in Three Dimensions
S. A. Gilchrist, D. C. Braun, G. Barnes
Magnetohydrostatic models of the solar atmosphere are often based on idealized analytic solutions because the underlying equations are too difficult to solve in full generality. Nu…
A low upper limit on the subsurface rise speed of solar active regions
Aaron C. Birch, Hannah Schunker, Douglas C. Braun +4
Magnetic field emerges at the surface of the Sun as sunspots and active regions. This process generates a poloidal magnetic field from a rising toroidal flux tube, it is a crucial…
A Helioseismic Survey of Near-surface Flows Around Active Regions and their Association with Flares
D. C. Braun
We use helioseismic holography to study the association of shallow flows with solar flare activity in about 250 large sunspot groups observed between 2010 and 2014 with the Heliose…