20 citations · 22 across the 3 of their papers we have counts for
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First polarimetric observations and modeling of the FeH F^4 Delta-X^4 Delta system
N. Afram, S. V. Berdyugina, D. M. Fluri +3
Lines of diatomic molecules are more temperature and pressure sensitive than atomic lines, which makes them ideal tools for studying cool stellar atmospheres an internal structure…
Detection of the Molecular Zeeman Effect in Circular Polarization on Cool Active Stars
S. V. Berdyugina, P. Petit, D. M. Fluri +2
We report on the first ever detection of circular polarization in molecular lines forming in magnetic regions on the surfaces of active stars. The new observations were obtained wi…
First Direct Detection of Magnetic Fields in Starspots and Stellar Chromospheres
S. V. Berdyugina, D. M. Fluri, N. Afram +5
Here we report on the first detection of circular polarization in molecular lines formed in cool magnetic regions (starspots) and in chromospheric emission lines formed in hot plag…
Preferred sunspot longitudes: Non-axisymmetry and differential rotation
I. G. Usoskin, S. V. Berdyugina, J. Poutanen
As recently found, the distribution of sunspots is non-axisymmetric and spot group formation implies the existence of two persistent active longitudes separated by 180 degrees. Her…