activity
20132021
most citedConvective blueshifts in the solar atmosphere: III. High-accuracy observations of spectral lines in the visible

55 citations · 176 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.IM2021★ 2 cited

Extreme Precision Radial Velocity Working Group Final Report

Jonathan Crass, B. Scott Gaudi, Stephanie Leifer +33

Precise mass measurements of exoplanets discovered by the direct imaging or transit technique are required to determine planet bulk properties and potential habitability. Furthermo…

astro-ph.SR2019★ 55 cited

Convective blueshifts in the solar atmosphere: III. High-accuracy observations of spectral lines in the visible

Johannes Löhner-Böttcher, Wolfgang Schmidt, Rolf Schlichenmaier +2

Convective motions in the solar atmosphere cause spectral lines to become asymmetric and shifted in wavelength. For photospheric lines, this differential Doppler shift varies from…

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.SR2017★ 37 cited

Convective blueshifts in the solar atmosphere, I. Absolute measurements with LARS of the spectral lines at 6302 Å

Johannes Löhner-Böttcher, Wolfgang Schmidt, Franziska Stief +2

The solar convection manifests as granulation and intergranulation at the solar surface. In the photosphere, convective motions induce differential Doppler shifts to spectral lines…

astro-ph.SR2015★ 31 cited

Signatures of running penumbral waves in sunspot photospheres

Johannes Löhner-Böttcher, Nazaret Bello González

The highly dynamic atmosphere above sunspots exhibits a wealth of magnetohydrodynamic (MHD) waves. Recent studies suggest a coupled nature of the most prominent phenomena: umbral f…

astro-ph.SR2013★ 32 cited

Correlations between sunspots and their moat flows

Johannes Löhner-Böttcher, Rolf Schlichenmaier

Context. The presence of the moat flow around sunspots is intimately linked to the mere existence of sunspots. Aims. We characterize the moat flow (MF) and Evershed flow (EF) in su…