122 citations · 851 across the 26 of their papers we have counts for
26 papers
Kilogauss magnetic fields from simulations of small-scale dynamo action in the convective envelope of a white dwarf
Fabio Riva, Tim Cunningham, Hans-Günter Ludwig +2
About 20% of white dwarfs are observed to host large-scale magnetic fields, but the origin of white dwarf magnetism remains uncertain. Small-scale turbulent dynamos (SSDs), which e…
Evidence for elemental diffusion in the eclipsing binary star AI Phoenicis
Pierre F. L. Maxted, Nicholas Storm, Andreas J. Korn +7
AI Phe is an eclipsing binary star with an orbital period of 24.6 days for which the surface gravity and effective temperature are known from direct measurements to very high preci…
Solar photospheric spectrum microvariability III. Radial velocities and line profiles in magnetic active-region granulation
Dainis Dravins, Hans-Günter Ludwig, Matthias Steffen +2
Finding low-mass planets around solar-type stars requires to understand the physical variability of the host star, which greatly exceeds the planet-induced radial-velocity modulati…
Solar photospheric spectrum microvariability
Dainis Dravins, Hans-Günter Ludwig
Finding low-mass planets around solar-type stars requires to understand the physical variability of the host star, which greatly exceeds the planet-induced radial-velocity modulati…
Solar photospheric spectrum microvariability II. Observed relations to magnetic activity and radial-velocity modulation
Dainis Dravins, Hans-Günter Ludwig
Searches for small exoplanets around solar-type stars are limited by stellar physical variability. While chromospheric variability is well studied, observing, modeling. and underst…
Spatially resolved spectroscopy across stellar surfaces. IV. F, G, & K-stars: Synthetic 3D spectra at hyper-high resolution
Dainis Dravins, Hans-Günter Ludwig, Bernd Freytag
High-precision stellar analyses require hydrodynamic 3D modeling. Such models predict changes across stellar disks of spectral line shapes, asymmetries, and wavelength shifts. For…