activity
20102022
most citedThe formation of sunspot penumbra. I. Magnetic field properties

56 citations · 128 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.SR2022★ 15 cited

Characterization of magneto-convection in sunspots -- The Gough & Tayler stability criterion in MURaM sunspot simulations

M. Schmassmann, M. Rempel, N. Bello González +2

We analyse a sunspot simulation in an effort to understand the origin of the convective instabilities giving rise to the penumbral and umbral distinct regimes. We applied the crite…

astro-ph.SR2017

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

S. J. González Manrique, C. Denker, C. Kuckein +28

A new generation of solar instruments provides improved spectral, spatial, and temporal resolution, thus facilitating a better understanding of dynamic processes on the Sun. High-r…

astro-ph.IM2012★ 5 cited

The GREGOR solar telescope on Tenerife

Wolfgang Schmidt, Oskar von der Lühe, Reiner Volkmer +14

2011 was a successful year for the GREGOR project. The telescope was finally completed in May with the installation of the 1.5-meter primary mirror. The installation of the first-l…

astro-ph.SR2011★ 56 cited

The formation of sunspot penumbra. I. Magnetic field properties

Reza Rezaei, Nazaret Bello Gonzalez, Rolf Schlichenmaier

We study the formation of a sunspot penumbra in the active region NOAA11024. We simultaneously observed the Stokes parameters of the photospheric iron lines at 1089.6 nm with the T…

astro-ph.SR2011★ 4 cited

On the Formation of Penumbrae as Observed with the German VTT, SOHO/MDI, and SDO/HMI

Rolf Schlichenmaier, Reza Rezaei, Nazaret Bello Gonzalez

Solar magnetic fields are generated in the solar interior and pop up at the solar surface to form active regions. As the magnetic field appears on the surface, it forms various str…

astro-ph.SR2010★ 48 cited

The role of emerging bipoles in the formation of a sunspot penumbra

R. Schlichenmaier, N. Bello Gonzalez, R. Rezaei +1

The generation of magnetic flux in the solar interior and its transport from the convection zone into the photosphere, the chromosphere, and the corona will be in the focus of sola…