30 citations · 72 across the 5 of their papers we have counts for
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Highly sensitive search for magnetic fields in white dwarfs using broad-band circular polarimetry
Andrei V. Berdyugin, Vilppu Piirola, Stefano Bagnulo +2
Circular polarisation measurements of white dwarfs of various ages and spectral types are useful to understand the origin and evolution of the magnetic field in degenerate stars. I…
High-precision broad-band linear polarimetry of early-type binaries I. Discovery of variable, phase-locked polarization in HD 48099
A. Berdyugin, V. Piirola, S. Sadegi +6
We investigate the structure of the O-type binary system HD 48099 by measuring linear polarization that arises due to light scattering process. Linear polarization measurements of…
GJ 841B - The Second DQ White Dwarf with Polarized CH Molecular Bands
Tommi Vornanen, Svetlana Berdyugina, Andrei Berdyugin +1
We report a discovery of the circularly polarized CH and molecular bands in the spectrum of the DQ white dwarf GJ 841B. This is only the second such obje…