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Solar flare diagnostic in an unprecedented frequency range from microwaves to THz frequencies: challenges for interpretation (flat)

Grant number: 13/24155-3
Support type:Research Projects - Thematic Grants
Duration: December 01, 2014 - November 30, 2019
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal Investigator:Carlos Guillermo Giménez de Castro
Grantee:Carlos Guillermo Giménez de Castro
Home Institution: Escola de Engenharia (EE). Universidade Presbiteriana Mackenzie (UPM). Instituto Presbiteriano Mackenzie. São Paulo, SP, Brazil
Co-Principal Investigators:Adriana Benetti Marques Valio ; Jean Pierre Raulin
Assoc. researchers:Adriana Benetti Marques Valio ; Carlos Guillermo Giménez de Castro ; Emilia Correia ; Jean Pierre Raulin ; Sérgio Szpigel
Associated scholarship(s):18/12416-0 - Integration, selection and commissioning of the HATS telescope, BP.TT
18/12731-3 - Development of HATS Control Software (HAX), BP.TT
16/02550-6 - Study and modeling the effects of solar flares and high-energy SGR/GRB transient events on the Earths ionosphere, BP.PD


Ground- and space-based observations of solar flares from radio wavelengths to gamma-rays have produced considerable insights but raised several unsolved controversies. The last unexplored wavelength frontier for solar flares is in the range of submillimeter and infrared wavelengths. Although the central focus of this proposal is on the description of solar activity at sub-THz and THz frequencies, it will be essential to analyze their relationships to observations at other radio, visible and higher UV, X- and gamma-ray energy frequency ranges, attempting to find new clues to understand the processes of energy build up and explosive release in active regions. To attain these objectives we propose a special effort along the declining phase of the current Solar Cycle 24 (2014-2018), maintaining, upgrading ongoing programs and implementing new experimental activities. The proposal includes new research and developments on THz detecting sensors, filters, materials and integrated systems for the current applications. Special efforts will be given for the interpretation of results from solar flare THz emission, associated emissions at other wavelengths, in radio, visible, UV, X- and gamma-rays. Attention will be given to high energy physical processes occurring in solar flare particle acceleration and their comparison to mechanisms in laboratory scale accelerators. The proposal is presented in the following sections: Scientific background; New solar observations at 30 THz; Cm,-, Mm-. sub-mm waves solar observations at Itapetinga and El Leoncito, Argentina Andes; . Supporting Ha high cadence observations; Complementary charged particle detection; Solar flare THz photometers on long duration stratospheric balloon flights; Cooperation with with UC Berkeley GRIPS experiment over Antarctica; Cooperation with Lebedev Physical Institute over Russia; Brazilian users of the attitude controlled gondola;Ground-based solar flare THz observations; THz atmospheric transmission; The HATS telescope; Budget estimates (2014-2018)- References (AU)

Articles published in Agência FAPESP about the research grant
Technology developed in Brazil will be part of the International Space Station  

Scientific publications (6)
(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)
GIMENEZ DE CASTRO, C. G.; RAULIN, J-P; SILVA, J. F. VALLE; SIMOES, P. J. A.; KUDAKA, A. S.; VALIO, A. The 6 September 2017 X9 Super Flare Observed From Submillimeter to Mid-IR. SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS, v. 16, n. 9, p. 1261-1268, SEP 2018. Web of Science Citations: 1.
CASSIANO, MARTA M.; ESPINOZA, DEYSI CORNEJO; RAULIN, JEAN-PIERRE; GIMENEZ DE CASTRO, CARLOS G. Precipitable water vapor and 212 GHz atmospheric optical depth correlation at El Leoncito site. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 168, p. 32-36, MAR 2018. Web of Science Citations: 0.
FERNANDES, L. O. T.; KAUFMANN, P.; CORREIA, E.; DE CASTRO, C. G. GIMENEZ; KUDAKA, A. S.; MARUN, A.; PEREYRA, P.; RAULIN, J. -P.; VALIO, A. B. M. Spectral Trends of Solar Bursts at Sub-THz Frequencies. SOLAR PHYSICS, v. 292, n. 1 JAN 2017. Web of Science Citations: 4.
MITEVA, R.; KAUFMANN, P.; CABEZAS, D. P.; CASSIANO, M. M.; FERNANDES, L. O. T.; FREELAND, S. L.; KARLICKY, M.; KERDRAON, A.; KUDAKA, A. S.; LUONI, M. L.; MARCON, R.; RAULIN, J. -P.; TROTTET, G.; WHITE, S. M. Comparison of 30 THz impulsive burst time development to microwaves, H alpha, EUV, and GOES soft X-rays. Astronomy & Astrophysics, v. 586, FEB 2016. Web of Science Citations: 3.
TROTTET, G.; RAULIN, J. -P.; MACKINNON, A.; GIMENEZ DE CASTRO, G.; SIMOES, P. J. A.; CABEZAS, D.; DE LA LUZ, V.; LUONI, M.; KAUFMANN, P. Origin of the 30 THz Emission Detected During the Solar Flare on 2012 March 13 at 17:20 UT. SOLAR PHYSICS, v. 290, n. 10, p. 2809-2826, OCT 2015. Web of Science Citations: 12.
KUDAKA, A. S.; CASSIANO, M. M.; MARCON, R.; CABEZAS, D. P.; FERNANDES, L. O. T.; HIDALGO RAMIREZ, R. F.; KAUFMANN, P.; DE SOUZA, R. V. The New 30 THz Solar Telescope in So Paulo, Brazil. SOLAR PHYSICS, v. 290, n. 8, p. 2373-2379, AUG 2015. Web of Science Citations: 1.

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