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Measuring cosmic magnetic fields with very large telescopes

Published online by Cambridge University Press:  01 November 2008

Oleg Kochukhov  and
Nicolai Piskunov
Oleg Kochukhov
Affiliation:
Department of Physics and Astronomy, Uppsala University, 751 20 Uppsala, Sweden
Nicolai Piskunov
Affiliation:
Department of Physics and Astronomy, Uppsala University, 751 20 Uppsala, Sweden
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Abstract

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We review general properties and capabilities of the instrumentation employed to diagnose cosmic magnetic fields using medium-size and large optical telescopes. During the last decade these spectropolarimeters and high-resolution spectrographs have been successfully used to detect and characterize magnetic fields in stars across the H-R diagram. A new generation of high-resolution spectropolarimeters will benefit from the large collecting area of the future E-ELT and currently operating 8-m class telescopes. We review plans to develop spectropolarimeters for these very large telescopes and outline a number of science cases where new spectropolarimetric instrumentation is expected to play a key role.

Keywords

Instrumentation: polarimeters – instrumentation: spectrographs – telescopes – stars: activity – stars: magnetic fields
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S259: Cosmic Magnetic Fields: From Planets, to Stars and Galaxies , November 2008 , pp. 653 - 662
Copyright
Copyright © International Astronomical Union 2009

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