CAOSP abstracts, Volume: 27, No.: 3, year: 1998
- Author(s): BAGNULO, S.
- Journal: Contributions of the Astronomical Observatory Skalnate Pleso,
vol. 27, no. 3, p. 431-435.
- Date: 04/1998
- Title: Broadband linear polarisation and modelling of magnetic fields in CP stars
- Keyword(s): POLARISATION, MAGNETIC FIELDS, STARS: CHEMICALLY PECULIAR
- Pages: 431 -- 435
The observations in broadband linear polarisation (BBLP) represent a
powerful diagnostic tool for detecting the magnetic morphology of CP
stars. In several cases, BBLP observations are not consistent with the
prediction of the oblique rotator model with a simple dipolar field.
Discrepancies between theoretical predictions and observations may
partially be ascribed to the effect of desaturation due to the blending
of spectral lines, which has not been taken into account so far in the models.
However, there are strong evidences that in many cases the simple dipolar
model is not sufficient to describe the magnetic configuration of CP stars.
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