@Article{JacomeMaZaEcLaLo:2022:SeJoDe,
author = "Jacome, Hadassa Raquel Peixoto and Marques, M. S. and Zarka, P.
and Echer, Ezequiel and Lamy, L. and Louis, C. K.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade Federal do Rio Grande do Norte (UFRN)} and {Sorbonne
Universit{\'e}} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Sorbonne Universit{\'e}} and {Dublin Institute for
Advanced Studies}",
title = "Search for Jovian decametric emission induced by Europa on the
extensive Nancay Decameter Array catalog",
journal = "Astronomy and Astrophysics",
year = "2022",
volume = "665",
pages = "A67",
month = "Sept.",
keywords = "radio continuum: planetary systems, radiation mechanisms:
non-thermal, methods: statistical, catalogs, planets and
satellites: individual: Jupiter, Europa.",
abstract = "Context. The electrodynamic interaction between the Galilean
satellites and the Jovian magnetosphere generates Alfven wings
that connect the satellites to the polar atmosphere of Jupiter and
induce auroral radiation through the cyclotron-maser instability.
The satellite control of the Jovian decametric emission is widely
known and has been studied since the 1960s, being first discovered
with regard to Io and, more recently, Ganymede. The partial
control of these emission by Europa and Callisto, however, has not
yet been confirmed, however, hints of this control have already
been found. Aims. The goal of this work is to search for evidence
of control of the Jovian decametric emission by the satellite
Europa. Methods. For this purpose, we analyzed the extensive
digital catalog of Jovian decametric emission detected by the
Nancay Decameter Array from 1990 to 2020. We analyzed
distributions of the occurrence probability of the emission not
induced by Io nor by Ganymede as a function of Europa phase and of
the Array's longitude with regard to the Jovian central meridian
of longitude. Results. As a result, we selected 267 possible
Europa-induced emission, from which 186 are from source A (Eu-A),
56 are from source C (Eu-C), and 25 are from source D (Eu-D). The
general maximum frequency and duration of these emission are
presented and compared to those of the other emission in the
catalog and their average power is estimated as a function of the
average power of the Io-induced emission. Conclusions. We conclude
that Europa, just as in the case of Io and Ganymede, induces a
portion of the Jovian decametric emission.",
doi = "10.1051/0004-6361/202244246",
url = "http://dx.doi.org/10.1051/0004-6361/202244246",
issn = "0004-6361 and 1432-0746",
language = "en",
targetfile = "aa44246-22.pdf",
urlaccessdate = "20 maio 2024"
}