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| Paper: |
Spectropolarimetric Observations of Magnetic White Dwarfs with the SAO 6-m Telescope: Search for Rydberg States |
| Volume: |
518, Physics of Magnetic Stars |
| Page: |
93 |
| Authors: |
Piotrovich, M. Y.; Afanasiev, V. L.; Gnedin, Y. N.; Buliga, S. D.; Natsvlishvili, T. M. |
| Abstract: |
The results of the spectropolarimetric observations of a number of
magnetic white dwarfs obtained on the 6-m optical telescope of the
Special Astrophysical Observatory are presented. For one group of
objects, the degree of linear polarization grows with wavelength,
suggesting that the alignment of atoms and molecules in Rydberg
states in the atmosphere of the white dwarf due to the action of
its magnetic field influences scattering processes. The second
group of objects displays an increase in the degrees of both
linear and circular polarization with wavelength, providing
evidence for the presence of protoplanetary disks around these
magnetic white dwarfs, in which the alignment of circumstellar
grains leads to the observed behavior. |
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