On the evolutionary status of chemically peculiar stars of the upper main sequence
- Author(s)
- Harald Pöhnl, Hans Michael Maitzen, Ernst Paunzen
- Abstract
We present further evidence that the magnetic chemically peculiar stars (CP2) of the upper main sequence already occur at very early stages of the stellar evolution, significantly before they reach 30% of their life-time on the main sequence. This result is especially important for models dealing with dynamo theories, angular momentum loss during the pre-as well as main sequence and evolutionary calculations for CP2 stars. Results from the literature either derived for objects in the Hyades and the UMa cluster or from the Hipparcos mission contradict each other. A way out of this dilemma is to investigate young open clusters with known ages and accurate distances (error
- Organisation(s)
- Department of Astrophysics
- Journal
- Astronomy & Astrophysics
- Volume
- 402
- Pages
- 247-252
- No. of pages
- 6
- ISSN
- 0004-6361
- DOI
- https://doi.org/10.1051/0004-6361:20030266
- Publication date
- 2003
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103003 Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/on-the-evolutionary-status-of-chemically-peculiar-stars-of-the-upper-main-sequence(a183a254-f084-4c67-8059-261c358147f9).html