Paschen is partially Back
- Author(s)
- Martin Stift, Franco Leone
- Abstract
We present a discussion of the partial Paschen-Back (PB) effect in magnetic Ap stars. An overview of the theory is illustrated with examples of how splittings deviate non-linearly from the simple Zeeman picture; normally forbidden "ghost lines" appear in strong fields. Resulting asymmetric stellar Stokes profiles for a dipolar magnetic geometry are shown for the Fe II λ 6149 line and it is established that PB lines may be subject to wavelength shifts. Modelling of Stokes profiles in the PB regime opens exciting new diagnostics.
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- Università degli Studi di Catania
- Journal
- Contributions of the Astronomical Observatory Skalnaté Pleso
- Volume
- 38
- Pages
- 185-190
- ISSN
- 1335-1842
- Publication date
- 2008
- Austrian Fields of Science 2012
- 103004 Astrophysics, 103003 Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/79c928fb-062a-461c-a640-87f535f05cdb