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Interferometry and Stellar Magnetism

Published online by Cambridge University Press:  12 April 2016

O. Chesneau ,
K. Rousselet-Perraut  and
F. Vakili
O. Chesneau
Affiliation:
Observatoire de la Côte d’Azur, UMR 6528, 06460 St Vallier deThiey Observatoire de Grenoble, UMR 5571, BP 53, 38041 Grenoble cedex 9
K. Rousselet-Perraut
Affiliation:
Observatoire de la Côte d’Azur, UMR 6528, 06460 St Vallier deThiey Observatoire de Grenoble, UMR 5571, BP 53, 38041 Grenoble cedex 9
F. Vakili
Affiliation:
Observatoire de la Côte d’Azur, UMR 6528, 06460 St Vallier deThiey Observatoire de Grenoble, UMR 5571, BP 53, 38041 Grenoble cedex 9

Abstract

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The classical detection of magnetic fields in Be stars remains a challenge due to the sensitivity threshold and geometrical cancelation of the field effects. We propose to study the Zeeman effect using Spectro-Polarimetric INterferometry (SPIN) which consists of the simultaneous use of polarimetry and very high angular resolution provided by long baseline interferometers. As monitoring of the instrumental polarisation is mandatory in order to calibrate interferometric observations in any case, the polarised signal is a natural by-product of interferometers. This method will be tested on the GI2T interferometer thanks to its high spectral resolution and its polarimetric capabilities.

Type
2. New Missions
Information
International Astronomical Union Colloquium , Volume 175: The Be Phenomenon in Early-Type Stars , 2000 , pp. 174 - 177
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

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