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Diagnostics for spectropolarimetry and magnetography

Published online by Cambridge University Press:  26 August 2011

Jose Carlos del Toro Iniesta  and
Valentín Martínez Pillet
Jose Carlos del Toro Iniesta
Affiliation:
Instituto de Astrofísica de Andalucía (CSIC), Apdo. de Correos 3004, E-18080, Granada, Spain email: jti@iaa.es
Valentín Martínez Pillet
Affiliation:
Instituto del Astrofísica de Canarias, Vía Láctea, s/n, E-38200, La Laguna, Spain email: vmp@iac.es
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Abstract

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An assessment on the capabilities of modern spectropolarimeters and magnetographs is in order since most of our astrophysical results rely upon the accuracy of the instrumentation and on the sensitivity of the observables to variations of the sought physical parameters. A contribution to such an assessment will be presented in this talk where emphasis will be made on the use of the so-called response functions to gauge the probing capabilities of spectral lines and on an analytical approach to estimate the uncertainties in the results in terms of instrumental effects. The Imaging Magnetograph eXperiment (IMaX) and the Polarimetric and Helioseismic Imager (PHI) will be used as study cases.

Keywords

Sun: magnetic fieldspolarizationradiative transferinstrumentation: polarimetersinstrumentation: spectrographs
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S273: The Physics of Sun and Star Spots , August 2010 , pp. 37 - 43
Copyright
Copyright © International Astronomical Union 2011

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