Solar Type III Bursts Observed with LOFAR

Reid, H. A.S. (2016) Solar Type III Bursts Observed with LOFAR. In: URSI Asia-Pacific Radio Science Conference (URSI AP-RASC), Seoul, Korea, 21-25 Aug 2016, pp. 1235-1238. ISBN 9781467388016 (doi:10.1109/URSIAP-RASC.2016.7601384)

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Abstract

New solar type III burst observations are analysed at frequencies between 70-30 MHz. Combining imaging and spectra from LOFAR the apparent velocity of the type III exciter is estimated without the assumption of a density model. The observations suggest that the type IIIs are emitted by an electron beams travelling at relativistic velocities, much faster than predicted from typical coronal models. The type III centroids indicate the electron beams travels along an over-dense solar coronal density structure originating from a solar active region. Assumptions that are normally used to deduce exciter velocities are discussed.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Reid, Dr Hamish
Authors: Reid, H. A.S.
College/School:College of Science and Engineering > School of Physics and Astronomy
ISBN:9781467388016

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
631581Consolidated grant in solar and astrophysical plasmasLyndsay FletcherScience & Technologies Facilities Council (STFC)ST/L000741/1S&E P&A - PHYSICS & ASTRONOMY
652881Simulating Sun-Earth Solar Radio BurstsHamish ReidRoyal Society (ROYSOC)RG130642S&E P&A - PHYSICS & ASTRONOMY