Magnetic field vector retrieval with the Helioseismic and Magnetic Imager

Borrero, J.M., Tomczyk, S., Norton, A., Darnell, T. , Schou, J., Scherrer, P., Bush, R., and Liu, Y. (2007) Magnetic field vector retrieval with the Helioseismic and Magnetic Imager. Solar Physics, 240 (1). pp. 177-196.

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Abstract

We investigate the performance in the retrieval of the solar photospheric magnetic field vector using the Helioseismic and Magnetic Imager (HMI) that will fly on board of the Solar Dynamics Observatory (SDO). This study is carried out by inverting simulated HMI profiles. Those simulated profiles realistically take into account the effects of the photon noise, limited spectral resolution, instrumental polarization modulation, Solar p-modes and temporal averaging. The accuracy in the determination of the magnetic field vector is studied considering the different operational modes of the instrument.

Item ID: 9614
Item Type: Article (Refereed Research - C1)
Keywords: polarization; optical; instrumental effects; magnetic fields; photosphere
ISSN: 1573-093X
Date Deposited: 25 Mar 2010 22:48
FoR Codes: 02 PHYSICAL SCIENCES > 0201 Astronomical and Space Sciences > 020109 Space and Solar Physics @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 100%
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