activity
20062026
most citedHelioseismology of Sunspots: A Case Study of NOAA Region 9787

110 citations · 765 across the 27 of their papers we have counts for

collaborators
Showing astro-ph.SRShow all

21 papers · 1 filter

astro-ph.SR2026

The PLATO Science Calibration and Validation Plan: Targets for the First Long-pointing Field

Konstanze Zwintz, Conny Aerts, Andrew Tkachenko +56

In order to meet the science goals of the PLATO space mission, an extensive science calibration and validation plan has been designed. This paper describes this plan, as well as th…

astro-ph.SR2021

Evolution of solar surface inflows around emerging active regions

N. Gottschling, H. Schunker, A. C. Birch +2

Solar active regions are associated with Evershed outflows in sunspot penumbrae, moat outflows surrounding sunspots, and extended inflows surrounding active regions. The latter hav…

astro-ph.SR2020★ 29 cited

Average motion of emerging solar active region polarities II: Joy's law

Hannah Schunker, Christian Baumgartner, Aaron C. Birch +3

The tilt of solar active regions described by Joy's law is essential for converting a toroidal field to a poloidal field in Babcock-Leighton dynamo models. In thin flux tube models…

astro-ph.SR2020★ 8 cited

Estimating the nonstructural component of the helioseismic surface term using hydrodynamic simulations

J. Schou, A. C. Birch

As the amount of asteroseismic data available continues to grow, the inability to accurately model observed oscillation frequencies is becoming a critical problem for interpreting…

astro-ph.SR2019★ 24 cited

Average motion of emerging solar active region polarities I: Two phases of emergence

Hannah Schunker, Aaron C. Birch, Robert H. Cameron +3

Our goal is to constrain models of active region formation by tracking the average motion of active region polarity pairs as they emerge onto the surface. We measured the motion of…

astro-ph.SR2018★ 5 cited

Validating Forward Modeling and Inversions of Helioseismic Holography Measurements

K. DeGrave, D. C. Braun, A. C. Birch +2

Here we use synthetic data to explore the performance of forward models and inverse methods for helioseismic holography. Specifically, this work presents the first comprehensive te…