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Authors whose works are in public domain in at least one jurisdiction

List of works by Horst Balthasar

A search for formation-height oscillations in umbrae

article by Berger B. et al published 1996 in Astronomy and Astrophysics

Active region fine structure observed at 0.08 arcsec resolution

scientific article published in January 2016

Ca II 8542 Å brightenings induced by a solar microflare

scientific article published in Astronomy and Astrophysics

Deep probing of the photospheric sunspot penumbra: no evidence of field-free gaps

scientific article published in January 2016

Evidence of quiet-Sun chromospheric activity related to an emerging small-scale magnetic loop

scientific article published in January 2013

Field-aligned Evershed flows in the photosphere of a sunspot penumbra

scientific article

Fitting peculiar spectral profiles in HeI10830 Å absorption features

article

Flare-induced changes of the photospheric magnetic field in a δ-spot deduced from ground-based observations

scientific article published in Astronomy and Astrophysics

Flow and magnetic field properties in the trailing sunspots of active region NOAA 12396

Flows along arch filaments observed in the GRIS ‘very fast spectroscopic mode’

article published in 2016

Formation of a penumbra in a decaying sunspot

scientific article published in January 2013

Heights of formation of FeI photospheric lines

scientific article published in January 1998

High-cadence Imaging and Imaging Spectroscopy at the GREGOR Solar Telescope—A Collaborative Research Environment for High-resolution Solar Physics

High-resolution imaging and near-infrared spectroscopy of penumbral decay

scientific article published in Astronomy and Astrophysics

Horizontal flow fields in and around a small active region. The transition period between flux emergence and decay

scientific article published in Astronomy and Astrophysics

Horizontal flow fields observed in Hinode G-band images. II. Flow fields in the final stages of sunspot decay

scientific article published in January 2012

Image Quality in High-resolution and High-cadence Solar Imaging

Inference of magnetic fields in the very quiet Sun

scientific article published in Astronomy and Astrophysics

Magnetic fields of opposite polarity in sunspot penumbrae

scientific article published in January 2016

Magnetic loop emergence within a granule

scientific article published in January 2010

Multi-mode oscillations of sunspots

scientific article

Near-infrared spectropolarimetry of a {delta}-spot

scholarly article

On the magnetic field of a sunspot penumbra

scientific article published in January 1992

Polarimetry and spectroscopy of a simple sunspot. IV. Umbral structures observed in FeI 1027nm

scientific article published in January 1994

Probing deep photospheric layers of the quiet Sun with high magnetic sensitivity

scientific article published in Astronomy and Astrophysics

Properties of the inner penumbral boundary and temporal evolution of a decaying sunspot

scientific article

Rotational periodicities in sunspot relative numbers

scientific article published in January 2007

Slipping reconnection in a solar flare observed in high resolution with the GREGOR solar telescope

scientific article published in January 2016

Solar physics at the Einstein Tower

Some properties of an isolated sunspot

scientific article published in January 2005

Spectropolarimetric observations of an arch filament system with the GREGOR solar telescope

Sunspot splitting triggering an eruptive flare

scientific article

Temporal and spatial variation of physical parameters in a quiescent prominence

scientific article published in January 1994

Temporal evolution of arch filaments as seen in He I 10 830 Å

scientific article published in Astronomy and Astrophysics

The European Solar Telescope

scientific article published in 2022

The role of the f-mode in the relation between solar intensity oscillations and granulation

scientific article published in January 1998

The three-dimensional structure of sunspots. I. The height dependence of the magnetic field

scientific article published in January 2008

The three-dimensional structure of sunspots. II. The moat flow at two different heights

scientific article published in January 2010

Three-dimensional structure of a sunspot light bridge

scholarly article

Time series of Doppler velocities in prominences

scientific article published in January 1992

Two magnetic components in sunspot penumbrae

scientific article

Two-dimensional distribution of oscillations in a quiescent solar prominence

scientific article published in Astronomy and Astrophysics

Two-dimensional spectroscopy of sunspots. I. Intensity, velocity, and velocity power maps of a sunspot

scientific article

Two-dimensional spectroscopy of sunspots. II. Search for propagating waves and drifting velocity filaments in photospheric layers

scientific article published in January 2008

Upper chromospheric magnetic field of a sunspot penumbra: observations of fine structure

scientific article published in January 2016

Vertical current densities and magnetic gradients in sunspots

scientific article

Wave modulation and wave sources in the solar convection zone

scientific article

sTools – a data reduction pipeline for the GREGOR Fabry-Pérot Interferometer and the High-resolution Fast Imager at the GREGOR solar telescope