275 citations · 353 across the 9 of their papers we have counts for
8 papers · 1 filter
Toroidal versus poloidal magnetic fields in Sun-like stars: a rotation threshold
P. Petit, B. Dintrans, S. K. Solanki +8
From a set of stellar spectropolarimetric observations, we report the detection of surface magnetic fields in a sample of four solar-type stars, namely HD 73350, HD 76151, HD 14623…
On the potential value of Ca II K spectroheliogram time-series for solar activity and irradiance studies
I. Ermolli, S. K. Solanki, A. G. Tlatov +3
Various observatories around the globe started regular full-disk imaging of the solar atmosphere in the Ca II K line since the early decades of the 20th century. The archives made…
Hanle Effect Diagnostics of the Coronal Magnetic Field - A Test Using Realistic Magnetic Field Configurations
N. -E. Raouafi, S. K. Solanki, T. Wiegelmann
Our understanding of coronal phenomena, such as coronal plasma thermodynamics, faces a major handicap caused by missing coronal magnetic field measurements. Several lines in the UV…
Modified p-modes in penumbral filaments?
D. S. Bloomfield, S. K. Solanki, A. Lagg +2
Aims: The primary objective of this study is to search for and identify wave modes within a sunspot penumbra. Methods: Infrared spectropolarimetric time series data are inverted us…
Sensitivity of solar off-limb line profiles to electron density stratification and the velocity distribution anisotropy
N. -E. Raouafi, S. K. Solanki
The effect of the electron density stratification on the intensity profiles of the H I Ly- line and the O VI and Mg X doublets formed in solar coronal holes is investigated. We…
Observations of Running Waves in a Sunspot Chromosphere
D. Shaun Bloomfield, Andreas Lagg, Sami K. Solanki
Spectropolarimetric time series data of the primary spot of active region NOAA 9448 were obtained in the Si I 10827 Åline and the He I 10830 Åmultiplet with the Tenerife Infrared P…