| Type |
Journal Article |
| Names |
R. H. D. Townsend, S. P. Owocki, D. Groote |
| Publication |
The Astrophysical Journal Letters |
| Volume |
630 |
| Issue |
1 |
| Pages |
L81-L84 |
| Date |
September 1, 2005 |
| URL |
http://adsabs.harvard.edu/abs/2005ApJ...630L..81T |
| Library Catalog |
NASA ADS |
| Abstract |
We characterize the observed variability of the magnetic helium-strong
star σ Ori E in terms of a recently developed rigidly rotating
magnetosphere model. This model predicts the accumulation of
circumstellar plasma in two corotating clouds, situated in
magnetohydrostatic equilibrium at the intersections between the magnetic
and rotational equators. We find that the model can reproduce well the
periodic modulations observed in the star's light curve, Hα
emission-line profile, and longitudinal field strength, confirming that
it furnishes an essentially correct, quantitative description of the
star's magnetically controlled circumstellar environment. |
| Tags |
Stars: Circumstellar Matter, stars: chemically peculiar, stars: early-type, stars: individual (HD 37479), stars: magnetic fields, stars: rotation |