Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apjs...64..219t&link_type=abstract
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 64, May 1987, p. 219-240. Research supported by the Research Corp
Astronomy and Astrophysics
Astrophysics
40
Centaurus Constellation, Magnetic Stars, Peculiar Stars, Scorpius Constellation, Star Clusters, A Stars, Astronomical Photometry, Position (Location), Stellar Motions
Scientific paper
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.
Brown Douglas N.
Landstreet John Darlington
Thompson Ian B.
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