Complex structure of the magnetic field of the CP-Star HD142301

Details Complex structure of the magnetic field of the CP-Star HD142301 Complex structure of the magnetic field of the CP-Star HD142301

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ap.....53..536g&link_type=abstract

Astrophysics, Volume 53, Issue 4, pp.536-543

Astronomy and Astrophysics

Astrophysics

Stars, Magnetic Fields, Object, Hd142301

Scientific paper

Models of the magnetic field of the He-w star HD142301 are constructed. Observational data are well described by the model of a dipole shifted by 0.6 stellar radii transverse to the axis. The phase dependence of the HeI λ4026Å line, however, corresponds better to a model assuming the presence of four monopoles (or two dipoles) shifted by 0.4 stellar radii from the center. The distance between the monopoles in both models is comparable to the star's radius, which indicates that the source of the magnetic field is "long" dipoles, rather than "point" dipoles.

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