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Title: An estimate of the magnetic field strength associated with a solar coronal mass ejection from low frequency radio observations
Authors: Sasikumar Raja, K
Ramesh, R
Hariharan, K
Kathiravan, C
Wang, T. J
Keywords: Sun:Activity;Sun:Corona;Sun:Coronal Mass ejections (CMEs);Sun:Flares;Sun:Magnetic Fields;Sun:Radio Radiation
Issue Date: 20-Nov-2014
Publisher: IOP Publishing Ltd
Citation: The Astrophysical Journal, Vol. 796, No. 1, 56
Abstract: We report ground based, low frequency heliograph (80 MHz), spectral (85-35 MHz), and polarimeter (80 and 40 MHz) observations of drifting, non-thermal radio continuum associated with the "halo" coronal mass ejection that occurred in the solar atmosphere on 2013 March 15. The magnetic field strengths (B) near the radio source were estimated to be B ≈ 2.2 ± 0.4 G at 80 MHz and B ≈ 1.4 ± 0.2 G at 40 MHz. The corresponding radial distances (r) are r ≈ 1.9 R ☉ (80 MHz) and r ≈ 2.2 R ☉ (40 MHz).
Description: Open Access
ISSN: 0004-637X (Print)
1538-4357 (Online)
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Appears in Collections:IIAP Publications

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