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

Wade, G. A.
Silvester, J.
Bale, K.
Johnson, N.
Power, J.
Auriere, M.
Lignieres, F.
Dintrans, B.
Donati, J. -F.
Hui Bon Hoa, A.
Mouillet, D.
Naseri, S.
Paletou, F.
Petit, P.
Rincon, F.
Toque, N.
Bagnulo, S.
Folsom, C. P.
Landstreet, J. D.
Gruberbauer, M.
Lueftinger, T.
Jeffers, S. V.
Lebre, A.
Marsden, S. C.

Publication date

June 2009

Publisher

Astronomical Society of the Pacific Conference Series

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

Extracted data

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Bale, K.
Dintrans, B.
Donati, J.F.
Folsom, C.P.
Gruberbauer, M.
Hui Bon Hoa, A.
Jeffers, S.
Johnson, N.
Landstreet, J.D.
Lebrè, A.
Lueftinger, T.
Marsden, S.
Mouillet, D.
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Paletou, F.
Petit, P.
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Wade, G. A.
Silvester, J.
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Bale, K.
Dintrans, B.
Donati, J. F.
Folsom, C. P.
Gruberbauer, M.
Hoa, A. Hui Bon
Jeffers, S.
Johnson, N.
Landstreet, J. D.
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Lueftinger, T.
Marsden, S.
Mouillet, D.
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J. F. Donati
C. P. Folsom
M. Gruberbauer
A. Hui Bon Hoa
S. Jeffers
N. Johnson
J. D. Landstreet
A. Lèbre
T. Lueftinger
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S. Naseri
F. Paletou
P. Petit
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S. Strasser
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Petit, Véronique

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S. Bagnulo
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April 2006

Context.About 5% of upper main sequence stars are permeated by a strong magnetic field, the origin o...

Magnetic field measurements of sharp-lined Ap stars

Järvinen, S. P.
Hubrig, S.
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Ilyin, I.
Schöller, M.

August 2022

Previous observations suggested that Ap and Bp stars exhibit a bimodal distribution of surface magne...

The magnetic fields of intermediate-mass T Tauri stars. I. Magnetic detections and fundamental stellar parameters

Villebrun, F.
Alecian, E.
Hussain, G.
Bouvier, J.
Folsom, C.
Lebreton, Y.
Amard, L.
Charbonnel, Corinne
Gallet, F.
Haemmerlé, L.
Böhm, T.
Johns-Krull, C.
Kochukhov, O.
Marsden, C.
Morin, J.
Petit, P.

February 2019

International audienceContext : .The origin of the fossil magnetic fields detected in 5 to 10% of in...

Searching for links between magnetic fields and stellar evolution. III. Measurement of magnetic fields in open cluster Ap stars with ESPaDOnS

Landstreet, J. D.
Silaj, J.
Andretta, V.
Bagnulo, S.
Berdyugina, S. V.
Donati, J.-F.
Fossati, L.
Petit, P.
Silvester, J.
Wade, G. A.

April 2008

accepted by Astronomy & AstrophysicsInternational audienceContext: A small fraction of upper main se...