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The coronal magnetic field reversal observed by the SOLARC instrument

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Abstract

High-sensitivity measurements for mapping coronal magnetic field have become possible since the recent development of infrared detection techniques. One urgent task that arises from the routine infrared observations is to interpret what the Stokes signals could indicate for coronal magnetic fields. It is the first time for us to successfully reveal the coronal field structure above a simple and stable sunspot on the photosphere using profiles of full Stokes parameters. In this paper, the author further points out the deficiency in any conclusions/judgements just based on incomplete polarization data. A magnetic flux reversal feature, observed from circular polarization data, may correspond to one or more coronal tubes with their front or farside arching apex there, more complicated than people imagined before. To exactly locate the infrared radiation sources, we need both circular and linear polarization data for an integrated analysis of them.

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Authors and Affiliations

  1. National Astronomical Observatories, Yunnan Astronomical Observatory, Kunming, 650011, China

    Yu Liu & YuanDeng Shen

Authors
  1. Yu Liu
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  2. YuanDeng Shen
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Correspondence to Yu Liu.

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Supported by the National Natural Science Foundation of China (Grant Nos. 10843010 and 10933003)

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Liu, Y., Shen, Y. The coronal magnetic field reversal observed by the SOLARC instrument. Sci. China Ser. G-Phys. Mech. Astron. 52, 1696–1701 (2009). https://doi.org/10.1007/s11433-009-0248-1

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  • DOI: https://doi.org/10.1007/s11433-009-0248-1

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