The Evolution of the Magnetic Fields of AP Stars: Magnetic Observations of Stars in the Scorpius-Centaurus Association
Abstract
Data concerning the positions, photometry, proper motions, and radial velocities have been compiled for a sample of Ap and Bp stars toward the Scorpius-Centaurus association. Probable members of the association are identified, and new magnetic observations of 13 of these member Ap stars in the mass range 2.5-4.5 solar masses are presented. These magnetic observations are compared with similar data for a sample of old field Ap stars. No evidence is found for a significant difference between the distributions of magnetic field strengths of the two samples, suggesting that little or no evolution of the magnetic fields in Ap stars occurs on a time scale of a few x 10 to the 8th yr.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- May 1987
- DOI:
- 10.1086/191195
- Bibcode:
- 1987ApJS...64..219T
- Keywords:
-
- Centaurus Constellation;
- Magnetic Stars;
- Peculiar Stars;
- Scorpius Constellation;
- Star Clusters;
- A Stars;
- Astronomical Photometry;
- Position (Location);
- Stellar Motions;
- Astrophysics;
- CLUSTERS: ASSOCIATIONS;
- STARS: EVOLUTION;
- STARS: PECULIAR A;
- STARS: MAGNETIC