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Diagnosis of solar emissions in meter and decimeter wavelengths associated with coronal mass ejection (CME) and solar flares

Grant number: 12/00009-5
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): April 01, 2012
Effective date (End): September 30, 2015
Field of knowledge:Physical Sciences and Mathematics - Astronomy - Solar System Astronomy
Principal researcher:Francisco Carlos Rocha Fernandes
Grantee:Rafael Douglas Cunha da Silva
Home Institution: Instituto de Pesquisa e Desenvolvimento (IP&D). Universidade do Vale do Paraíba (UNIVAP). São José dos Campos , SP, Brazil
Associated research grant:06/55883-0 - Development of Brazilian Decimetric Array (phase II), AP.TEM


From the analysis of solar emissions in the meter and decimeter frequency bands is possible to get information, among other processes, about the heating of solar atmospheric plasma, the acceleration and trapping of energetic particles and the occurrence of coronal shocks, related to solar transient phenomena as solar flares and/or coronal mass ejections (CME). Therefore, they can be used as diagnosis of processes and physical mechanisms of emission associates to such phenomena, in the approach of fundamental questions of the solar physics still in discussion. For such reason, this project has for objective the development of a Ph.D. Thesis related to the analysis and the interpretation of the occurrence and evolution of solar emissions in meter and decimeter wavelengths and their association with solar flares and/or CMEs. The aim is to investigate open questions, such as if the shocks that generate the type II emissions are trigged by flares or by CMEs; also the possible identification of solar emissions as precursors of CMEs. The investigations proposed for the improvement of knowledge about the occurrence of solar eruptive phenomena will be carried out by the analysis of data recorded in a wide range of radio frequency, by instruments as Callisto, Ondrejov, Phoenix and Brazilian Solar Spectroscope (BSS) spectrographs and by interferometer as Brazilian Decimetric Array (BDA) (Thematic Project - FAPESP 06/55883-0), that will be put in regular operation in 2013. (AU)

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Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CUNHA-SILVA, R. D.; FERNANDES, F. C. R.; SELHORST, C. L. Shock wave driven by CME evidenced by metric type II burst and EUV wave. Advances in Space Research, v. 56, n. 12, p. 2804-2810, DEC 15 2015. Web of Science Citations: 1.
CUNHA-SILVA, R. D.; FERNANDES, F. C. R.; SELHORST, C. L. Solar type II radio bursts associated with CME expansions as shown by EUV waves. Astronomy & Astrophysics, v. 578, JUN 2015. Web of Science Citations: 8.
SODRE, Z. A. L.; CUNHA-SILVA, R. D.; FERNANDES, F. C. R. Analysis of Chains of Metric Solar Type I Bursts. SOLAR PHYSICS, v. 290, n. 1, p. 159-168, JAN 2015. Web of Science Citations: 5.
CUNHA-SILVA, R. D.; FERNANDES, F. C. R.; SELHORST, C. L. Solar Type II Radio Bursts Recorded by the Compound Astronomical Low-Frequency Low-Cost Instrument for Spectroscopy in Transportable Observatories in Brazil. SOLAR PHYSICS, v. 289, n. 12, p. 4607-4620, DEC 2014. Web of Science Citations: 3.

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