62 citations · 193 across the 5 of their papers we have counts for
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astro-ph.SR2018★ 19 cited
Convective blueshifts in the solar atmosphere II. High-accuracy observations of the Fe i 6173.3Å line and deviations of full-disk Dopplergrams
Franziska Stief, Johannes Löhner-Böttcher, Wolfgang Schmidt +2
Granular convective motions reach into the lower solar atmosphere, typically causing photospheric spectral lines to exhibit a differential line shift. This Doppler shift to shorter…
astro-ph.SR2018★ 20 cited
Absolute velocity measurements in sunspot umbrae
J. Löhner-Böttcher, W. Schmidt, R. Schlichenmaier +3
In sunspot umbrae, convection is largely suppressed by the strong magnetic field. Previous measurements reported on negligible convective flows in umbral cores. Based on this, nume…