A survey of the weakest-field magnetic Ap stars: discovery of a threshold magnetic field strength?

Details A survey of the weakest-field magnetic Ap stars: discovery of a threshold magnetic field strength? A survey of the weakest-field magnetic Ap stars: discovery of a threshold magnetic field strength?

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004iaus..224..633a&link_type=abstract

The A-Star Puzzle, held in Poprad, Slovakia, July 8-13, 2004. Edited by J. Zverko, J. Ziznovsky, S.J. Adelman, and W.W. Weiss,

Physics

8

Methods: Data Analysis, Techniques: Polarimetric, Stars: Magnetic Fields.

Scientific paper

We are conducting a magnetic survey of a sample of about 30 spectroscopically identified Ap stars, with weak or previously undetected magnetic fields. For 28 studied stars, we have obtained 25 detections of Stokes V Zeeman signatures. Our results suggest that all Ap stars are magnetic. Further there may exist a minimum field strength for which Ap-type characteristics are produced.

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