Why are some A stars magnetic, while most are not?

Wade, G. A. and Silvester, J. and Bale, K. and Johnson, N. and Power, J. and Auriere, M. and Lignieres, F. and Dintrans, B. and Donati, J. -F. and Hui Bon Hoa, A. and Mouillet, D. and Naseri, S. and Paletou, F. and Petit, P. and Rincon, F. and Toque, N. and Bagnulo, S. and Folsom, C. P. and Landstreet, J. D. and Gruberbauer, M. and Lueftinger, T. and Jeffers, S. V. and Lebre, A. and Marsden, S. C. (2009) Why are some A stars magnetic, while most are not? In: Astronomical Society of the Pacific Conference(SPW5): 5th Solar Polarization Workshop: a Workshop In Honor of Jan Olof Stenflo, 17-21 Sep 2007, Ascona, Switzerland.

[img]
Preview
Text (Published Version)
Wade_etal_SPW5_PV.pdf

Download (95Kb) | Preview

Abstract

A small fraction of intermediate-mass main sequence (A and B type) stars have strong, organised magnetic fields. The large majority of such stars, however, show no evidence for magnetic fields, even when observed with very high precision. In this paper we describe a simple model, motivated by qualitatively new observational results, that provides a natural physical explanation for the small fraction of observed magnetic stars.


Statistics for USQ ePrint 26231
Statistics for this ePrint Item
Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Copyright 2009 Astronomical Society of the Pacific. This publication is copyright. It may be reproduced by an individual user in whole or in part for the purposes of study, research, or review, but is subject to the inclusion of an acknowledgment of the source.
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 20 Oct 2014 03:59
Last Modified: 15 May 2017 23:24
Uncontrolled Keywords: stellar; magnetic fields
Fields of Research : 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
02 Physical Sciences > 0201 Astronomical and Space Sciences > 020106 High Energy Astrophysics; Cosmic Rays
02 Physical Sciences > 0201 Astronomical and Space Sciences > 020107 Mesospheric, Ionospheric and Magnetospheric Physics
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
URI: http://eprints.usq.edu.au/id/eprint/26231

Actions (login required)

View Item Archive Repository Staff Only