7.1k citations
- Max Planck SocietyDE483 papers
- Centre National de la Recherche ScientifiqueFR438 papers
- University of GöttingenDE433 papers
- Kyung Hee UniversityKR271 papers
- Instituto de Astrofísica de CanariasES227 papers
- Instituto de Astrofísica de AndalucíaES214 papers
- Observatoire de ParisFR213 papers
- Laboratoire d’études spatiales et d’instrumentation en astrophysiqueFR212 papers
- Aarhus UniversityDK189 papers
- Universidad de La LagunaES165 papers
- Sorbonne UniversitéFR163 papers
- Université Paris CitéFR140 papers
11 papers · 1 filter
On the fine structure of the sunspot penumbrae. III The vertical extension of penumbral filaments
J. M. Borrero, S. K. Solanki, A. Lagg +2
In this paper we study the fine structure of the penumbra as inferred from the uncombed model (flux tube embedded in a magnetic surrounding) when applied to penumbral spectropolari…
On the size distribution of sunspot groups in the Greenwich sunspot record 1874-1976
I. Baumann, S. K. Solanki
We investigate the size distribution of the maximum areas and the instantaneous distribution of areas of sunspot groups using the Greenwich sunspot group record spanning the interv…
RHESSI images and spectra of two small flares
L. Maltagliati, A. Falchi, L. Teriaca
We studied the evolution of two small flares (GOES class C2 and C1) that developed in the same active region with different morphological characteristics: one is extended and the o…
Gravity-induced birefringence within the framework of Poincare gauge theory
Oliver Preuss, Sami K. Solanki, M. P. Haugan +1
Gauge theories of gravity provide an elegant and promising extension of general relativity. In this paper we show that the Poincaré gauge theory exhibits gravity-induced birefringe…
The dynamical disconnection of sunspots from their magnetic roots
M. Schuessler, M. Rempel
After a dynamically active emergence phase, magnetic flux at the solar surface soon ceases to show strong signs of the subsurface dynamics of its parent magnetic structure. This in…
Is there a phase constraint for solar dynamo models?
Manfred Schuessler
The spatio-temporal relationship between the sign of the observed radial component of the magnetic field at the solar surface and the sign of the toroidal field as inferred from Ha…