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

• Grant number: 13/24155-3
• Support Opportunities: Research Projects - Thematic Grants
• Duration: December 01, 2014 - February 28, 2023
• Field of knowledge: Physical Sciences and Mathematics - Physics - General Physics
• Principal Investigator: Carlos Guillermo Giménez de Castro
• Grantee: Carlos Guillermo Giménez de Castro
• Host Institution: Escola de Engenharia (EE). Universidade Presbiteriana Mackenzie (UPM). Instituto Presbiteriano Mackenzie. São Paulo , SP, Brazil
• Pesquisadores principais: Adriana Benetti Marques Valio ; Jean Pierre Raulin
• Associated researchers: Adriana Benetti Marques Valio ; Carlos Guillermo Giménez de Castro ; Emilia Correia ; Jean Pierre Raulin ; Paulo José de Aguiar Simões ; Rafael Euzebio Pereira de Oliveira ; Rodrigo Lima Stoeterau ; Sérgio Szpigel
• Associated scholarship(s): 19/22205-0 - The atmospheric attenuation in the THz to mid-IR band, BP.PD; 18/25177-4 - Supra-arcade downflows modelling through its signature at radio and microwaves, BP.PD; 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

Abstract

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)

Scientific publications

(20)

(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. (13/24155-3)

ZURBRIGGEN, ERNESTO; CECERE, MARIANA; SIEYRA, MARIA VALERIA; KRAUSE, GUSTAVO; COSTA, ANDREA; GIMENEZ DE CASTRO, C. GUILLERMO. An MHD Study of Large-Amplitude Oscillations in Solar Filaments. SOLAR PHYSICS, v. 296, n. 12, DEC 2021. (13/24155-3, 18/25177-4)

MENEZES, FABIAN; SELHORST, CAIUS L.; GIMENEZ DE CASTRO, CARLOS GUILLERMO; VALIO, ADRIANA. The Subterahertz Solar Cycle: Polar and Equatorial Radii Derived from SST and ALMA. ASTROPHYSICAL JOURNAL, v. 910, n. 1, MAR 2021. (13/24155-3, 19/03301-8, 13/10559-5)

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.; et al. Comparison of 30 THz impulsive burst time development to microwaves, H alpha, EUV, and GOES soft X-rays. Astronomy & Astrophysics, v. 586, FEB 2016. (13/24155-3)

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. (13/24155-3)

VALLE SILVA, JORGE F.; GUILLERMO GIMENEZ DE CASTRO, C.; SIMOES, PAULO J. A.; RAULIN, JEAN-PIERRE. Submillimeter Radiation as the Thermal Component of the Neupert Effect. SOLAR PHYSICS, v. 294, n. 11, NOV 2019. (13/24155-3)

GIMENEZ DE CASTRO, C. GUILLERMO; RAULIN, JEAN-PIERRE; VALIO, ADRIANA; ALAIA, GUILHERME; ALVARENGA, VINICIUS; BORTOLUCCI, EMILIO CARLOS; FERNANDES, SILVIA HELENA; FRANCILE, CARLOS; GIORGETTI, TIAGO; KUDAKA, AMAURI SHOSSEI; et al. HATS: A Ground-Based Telescope to Explore the THz Domain. SOLAR PHYSICS, v. 295, n. 4, APR 20 2020. (13/24155-3)

VALLE SILVA, J. F.; GIMENEZ DE CASTRO, C. G.; SELHORST, C. L.; RAULIN, J-P; VALIO, A.. Spectral signature of solar active region in millimetre and submillimetre wavelengths. Monthly Notices of the Royal Astronomical Society, v. 500, n. 2, p. 1964-1969, JAN 2021. (13/24155-3)

HUDSON, HUGH S.; SIMOES, PAULO J. A.; FLETCHER, LYNDSAY; HAYES, LAURA A.; HANNAH, IAIN G.. Hot X-ray onsets of solar flares. Monthly Notices of the Royal Astronomical Society, v. 501, n. 1, p. 1273-1281, FEB 2021. (13/24155-3)

MACKINNON, ALEXANDER; SZPIGEL, SERGIO; GIMENEZ DE CASTRO, GUILLERMO; TUNEU, JORDI. FLUKA Simulations of Pion Decay Gamma-Radiation from Energetic Flare Ions. SOLAR PHYSICS, v. 295, n. 12, DEC 8 2020. (17/13282-5, 09/18386-7, 13/24155-3, 16/23428-4)

GRAHAM, DAVID R.; CAUZZI, GIANNA; ZANGRILLI, LUCA; KOWALSKI, ADAM; SIMOES, PAULO; ALLIED, JOEL. Spectral Signatures of Chromospheric Condensation in a Major Solar Flare. ASTROPHYSICAL JOURNAL, v. 895, n. 1, MAY 2020. (13/24155-3)

TUNEU, J.; GIMENEZ DE CASTRO, G.; SZPIGEL, S.; MACKINNON, A.. Modelling magnetised medium particle transport in the guiding centre limit with GEANT4. Astronomy & Astrophysics, v. 654, OCT 15 2021. (16/23428-4, 18/08180-1, 13/24155-3)

DA SILVA, DOUGLAS FELIX; VALIO, ADRIANA. Broken Power-law Energy Spectra of the Accelerated Electrons Detected in Radio and Hard X-Rays during the SOL2013-05-13 Event. Astrophysical Journal Letters, v. 915, n. 1, JUL 2021. (09/50637-0, 13/10559-5, 13/24155-3)

SILVA, J. F. VALLE; DE CASTRO, C. G. GIMENEZ; PASSARELLI, CELI; ESPINOZA, DEYSI CORNEJO; CASSIANO, MARTA MARIA; RAULIN, JEAN-PIERRE; VALIO, A.. Optical depth measurements at 45 and 90 GHz in CASLEO. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 199, MAR 2020. (13/24155-3)

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. (13/24155-3)

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. (13/24155-3, 15/13596-4)

LOPEZ, FERNANDO M.; GIMENEZ DE CASTRO, CARLOS GUILLERMO; MANDRINI, CRISTINA H.; SIMOES, PAULO J. A.; CRISTIANI, GERMAN D.; GARY, DALE E.; FRANCILE, CARLOS; DEMOULIN, PASCAL. A solar flare driven by thermal conduction observed in mid-infraredx22c6;. Astronomy & Astrophysics, v. 657, JAN 7 2022. (13/24155-3)

GIMENEZ DE CASTRO, C. GUILLERMO; PEREIRA, ANDRE L. G.; VALLE SILVA, J. FERNANDO; SELHORST, CAIUS L.; MANDRINI, CRISTINA H.; CRISTIANI, GERMAN D.; RAULIN, JEAN-PIERRE; VALIO, ADRIANA. The Submillimeter Active Region Excess Brightness Temperature during Solar Cycles 23 and 24. ASTROPHYSICAL JOURNAL, v. 902, n. 2, OCT 2020. (13/24155-3)

HIDALGO RAMIREZ, R. F.; MOROSI, A.; SILVA, D.; SIMOES, P. J. A.; VALIO, A.. Center-to-Limb Variation of Solar Bursts Polarization at Millimeter Wavelengths. SOLAR PHYSICS, v. 294, n. 8, AUG 2019. (13/24155-3)

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. (13/24155-3, 06/06847-1)