Searching for links between magnetic fields and stellar evolution III. Measurement of magne.pdf

c Astronomy Astrophysics manuscript no. 8884main ESO 2008 March 6, 2008 Searching for links between magnetic fields and stellar evolution III. Measurement of magnetic fields in open cluster Ap stars with ESPaDOnS ⋆ 1 1 2 3 4,5 6 7 6 J.D. Landstreet , J. Silaj , V. Andretta , S. Bagnulo , S.V. Berdyugina , J.-F. Donati , L. Fossati , P. Petit , 8 8 J. Silvester , and G.A. Wade 8 0 1 Physics Astronomy Department, The University of Western Ontario, London, Ontario, Canada N6A 3K7. 0 e-mail: jlandstr@astro.uwo.ca, jsilaj@astro.uwo.ca 2 2 INAF – Osservatorio Astronomico di Capodimonte, salita Moiariello 16, 80131 Napoli, Italy. e-mail: andretta@na.astro.it r 3 a 4 Armagh Observatory, College Hill, Armagh BT61 9DG, Northern Ireland e-mail: sba@arm.ac.uk Institute of Astronomy, ETH, 8092 Zurich, Switzerland e-mail: sveta@astro.phys.ethz.ch M 5 Tuorla Observatory, University of Turku, FI-21500, Piikkio,¨ Finland 6 Observatoire Midi-Pyr´en´ees, 14, ave. Edouard-Belin, Toulouse, France e-mail: donati@ast.obs-mip.fr, 6 petit@ast.obs-mip.fr ] 7 Institut f¨ur Astronomie, Universit¨at Wien, T¨urkenschanzstr. 17, A-1180 Wien, Austria e-mail: fossati@astro.univie.ac.at h 8 Department of Physics, Royal Military College of Ca