Diagnosis of coronal magnetic field with data of Nobeyama Radio Heliograph

Details Diagnosis of coronal magnetic field with data of Nobeyama Radio Heliograph Diagnosis of coronal magnetic field with data of Nobeyama Radio Heliograph

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002newa....7..135h&link_type=abstract

New Astronomy, Volume 7, Issue 3, p. 135-145.

Astronomy and Astrophysics

Astronomy

8

Scientific paper

The expression is derived for the coronal magnetic field strength from the observations of brightness, temperature, peak frequency, spectral index, and polarization degree of solar microwave bursts. One example of solar burst on November 28, 1998 is given for the calculation of coronal magnetic field from the data of Nobeyama Radio Heliograph (NoRH). The results are comparable with the SOHO/MDI magnetogram and the calculation from the Nobeyama Radio Polarimeters (NoRP), as well as the coronal loops in SOHO/EIT and YOHKOH/SXT images. Therefore, it may be the first time that the two-dimensional diagnosis of coronal magnetic field in a microwave burst source from the radio observations has been made.

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