Probing the Circumstellar Structure of Pre-main Sequence Stars

@article{Vink2003ProbingTC,
  title={Probing the Circumstellar Structure of Pre-main Sequence Stars},
  author={Jorick S. Vink and J E Drew and Tim J. Harries and Rene Dick Oudmaijer},
  journal={arXiv: Astrophysics},
  year={2003},
  volume={299},
  pages={169-176}
}
We present Hα spectropolarimetry of a large sample of pre-main sequence (PMS) stars of low and intermediate mass, and argue that the technique is a powerful tool in studying the circumstellar geometry around these objects. For the intermediate mass (2 – 15 M⊙) Herbig Ae/Be stars we find that 16 out of 23 show aline effect, which immediately implies that flattening is common among these objects. Furthermore, we find a significant difference in Hα spectropolarimetry behaviour between the Herbig… 

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