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http://hdl.handle.net/2248/8026
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DC Field | Value | Language |
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dc.contributor.author | Ramesh, R | - |
dc.contributor.author | Kathiravan, C | - |
dc.contributor.author | Ebenezer, E | - |
dc.date.accessioned | 2022-08-24T05:48:10Z | - |
dc.date.available | 2022-08-24T05:48:10Z | - |
dc.date.issued | 2022-06-10 | - |
dc.identifier.citation | The Astrophysical Journal, Vol. 932, No. 1, 48 | en_US |
dc.identifier.issn | 1538-4357 | - |
dc.identifier.uri | http://hdl.handle.net/2248/8026 | - |
dc.description | Open Access | en_US |
dc.description | Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | - |
dc.description.abstract | It is well known that magnetic field strength (B) in the solar corona can be calculated using the Alfvén Mach number (MA) and Alfvén speed (vA) of the magnetohydrodynamic shock waves associated with coronal type II radio bursts. We show that observations of weak circularly polarized emission associated with the harmonic component of the type II bursts provide independent and consistent estimates of B. For the coronal type II burst observed on 2021 October 9, we obtained B ≈1.5 G and ≈1.9 G at a heliocentric distance (r) of ≈1.8 Re, using the above two techniques, respectively. | en_US |
dc.language.iso | en | en_US |
dc.publisher | American Astronomical Society | en_US |
dc.relation.uri | https://doi.org/10.3847/1538-4357/ac6f05 | - |
dc.rights | © 2022 The Author(s) | - |
dc.subject | Solar coronal mass ejections | en_US |
dc.subject | The Sun | en_US |
dc.subject | Solar magnetic fields | en_US |
dc.subject | Solar radio emission | en_US |
dc.subject | Solar corona | en_US |
dc.title | Circular Polarization Observations of Type II Solar Radio Bursts and the Coronal Magnetic Field | en_US |
dc.type | Article | en_US |
Appears in Collections: | IIAP Publications |
Files in This Item:
File | Description | Size | Format | |
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Circular Polarization Observations of Type II Solar Radio Bursts and the Coronal Magnetic Field.pdf | 801.47 kB | Adobe PDF | View/Open |
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