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Study of Jupiter magnetospheric auroral radio activity variability

Abstract

This projects aims to perform data analyses of Jupiter auroral radio emissions from Nançay radiotelescope and from Cassini spacecraft. Recently a database of Nançay radiotelescopic decametric observations has been compiled from 1990 to 2018. Further, a catalog of radio emissions at kilometric, hectometric and decametric ranges from Cassini Jupiter flyby (2000-2001) has been compiled. These database will be used to study the Jupiter magnetospheric and auroral variability in several timescales and to study the causes of its variability: solar wind external forcing, internal forcing due to energetic magnetospheric events or Io volcanic eruptions, Jupiter-Galilean moons interaction effects, and observational effcts (declinaton, distance Jupiter-Earth). This data analysis will be performed in the current collaboration with Observatoire de Paris-Meudon and Universidade Federal do Rio Grande do Norte. The dynamic spectra of radio observations will be analysed, deriving the emission power as function of frequency and time. Also time series of integrated radio fluxes and emission characteristics: sources, polarization, duration and maximum frequency, will be analysed. The methods to perform these analyses are Fourier transform, Lomb-Scargle periodogram, wavelet analysis, superposed epoch analysis and cross-correlation analysis. It is the goal of this project to acquire computers to make the data processing and have financial support to visit the Observatoire de Paris and UFRN, and to bring guests to INPE to have discussions with the scientific colleagues, as well as to present the results in scientific confererences. (AU)

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Scientific publications (11)
(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)
BRAGA, CARLOS ROBERTO; VOURLIDAS, ANGELOS; STENBORG, GUILLERMO; DAL LAGO, ALISSON; SOUZA DE MENDONCA, RAFAEL RODRIGUES; ECHER, EZEQUIEL. Predicting the Time of Arrival of Coronal Mass Ejections at Earth From Heliospheric Imaging Observations. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 125, n. 9 SEP 2020. Web of Science Citations: 0.
BOLZAN, M. J. A.; FRANCO, A. M. S.; ECHER, E. A wavelet based method to remove the long term periodicities of geophysical time series. Advances in Space Research, v. 66, n. 2, p. 299-306, JUL 15 2020. Web of Science Citations: 0.
ECHER, E.; BOLZAN, M. J. A.; FRANCO, A. M. S. Statistical analysis of solar wind parameter variation with heliospheric distance: Ulysses observations in the ecliptic plane. Advances in Space Research, v. 65, n. 12, p. 2846-2856, JUN 15 2020. Web of Science Citations: 0.
FRANCO, A. M. S.; FRAENZ, M.; ECHER, E.; BOLZAN, M. J. A. Wavelet analysis of low frequency plasma oscillations in the magnetosheath of Mars. Advances in Space Research, v. 65, n. 9, SI, p. 2090-2098, MAY 1 2020. Web of Science Citations: 0.
GONCALVES, ITALO G.; ECHER, EZEQUIEL; FRIGO, EVERTON. Sunspot cycle prediction using Warped Gaussian process regression. Advances in Space Research, v. 65, n. 1, p. 677-683, JAN 1 2020. Web of Science Citations: 0.
FRANCO, A. M. S.; FRAENZ, M.; ECHER, E.; BOLZAN, M. J. A.; ZHANG, T. L. The correlation length of ULF waves around Venus: VEX observations. Planetary and Space Science, v. 180, JAN 2020. Web of Science Citations: 1.
MENDONCA, R. R. S.; WANG, C.; BRAGA, C. R.; ECHER, E.; DAL LAGO, A.; COSTA, J. E. R.; MUNAKATA, K.; LI, H.; LIU, Z.; RAULIN, J-P; KUWABARA, T.; KOZAI, M.; KATO, C.; ROCKENBACH, M.; SCHUCH, N. J.; AL JASSAR, H. K.; SHARMA, M. M.; TOKUMARU, M.; DULDIG, M. L.; HUMBLE, J. E.; EVENSON, P.; SABBAH, I. Analysis of Cosmic Rays' Atmospheric Effects and Their Relationships to Cutoff Rigidity and Zenith Angle Using Global Muon Detector Network Data. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, v. 124, n. 12 DEC 2019. Web of Science Citations: 0.
JAUER, P. R.; WANG, C.; SOUZA, V. M.; ALVES, M. V.; ALVES, L. R.; PADUA, M. B.; MARCHEZI, J. P.; SILVA, DA L. A.; LIU, Z.; LI, H.; VIEIRA, L. E. A.; DAL LAGO, A.; GONZALEZ, W. D.; ECHER, E.; MEDEIROS, C.; COSTA, J. E. R.; DENARDINI, C. M. A Global Magnetohydrodynamic Simulation Study of Ultra-low-frequency Wave Activity in the Inner Magnetosphere: Corotating Interaction Region plus Alfvenic Fluctuations. ASTROPHYSICAL JOURNAL, v. 886, n. 1 NOV 20 2019. Web of Science Citations: 0.
DE SOUZA FRANCO, ADRIANE MARQUES; FRAENZ, MARKUS; ECHER, EZEQUIEL; ALVES BOLZAN, MAURICIO JOSE. Correlation length around Mars: A statistical study with MEX and MAVEN observations. EARTH AND PLANETARY PHYSICS, v. 3, n. 6, p. 560-569, NOV 2019. Web of Science Citations: 1.
DE SOUZA FRANCO, ADRIANE MARQUES; ECHER, EZEQUIEL; ALVES BOLZAN, MAURICIO JOSE. Wavelet analysis of the magnetotail response to solar wind fluctuations during HILDCAA events. Annales Geophysicae, v. 37, n. 5, p. 919-929, OCT 9 2019. Web of Science Citations: 0.
ECHER, E. Interplanetary Shock Parameters Near Jupiter's Orbit. Geophysical Research Letters, v. 46, n. 11, p. 5681-5688, JUN 16 2019. Web of Science Citations: 0.

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