@InProceedings{SilvaSSSMMVAJAWLGDSBZK:2021:CoPiAn,
author = "Silva, Ligia Alves da and Shi, J. and Sibeck, David G. and Souza,
Vitor Moura Cardoso e Silva and Marchezi, Jos{\'e} Paulo and
Medeiros, Cl{\'a}udia and Vieira, Luis Eduardo Antunes and
Agapitov, O. and Jauer, Paulo Ricardo and Alves, M. E. S. and
Wang, C. and Liu, Z. and Gonzalez Alarcon, Walter Demetrio and Dal
Lago, Alisson and Silva, Marlos Rockenbach da and Baker, D. N. and
Zhang, S. Y. and Kanekal, S. G.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {State Key
Laboratory of Space Weather} and {NASA Goddard Space Flight
Center} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {University of California} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade Estadual Paulista (UNESP)} and {State Key Laboratory
of Space Weather} and {State Key Laboratory of Space Weather} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Laboratory for Atmosphere and
Space Physics} and {Chinese Academy of Sciences} and {NASA Goddard
Space Flight Center}",
title = "Contribution of the pitch angle scattering on the relativistic
electron flux dropout in the outer radiation belt after the
Coronal Mass Ejection",
year = "2021",
organization = "Simp{\'o}sio Brasileiro de Geof{\'{\i}}sica Espacial e
Aeronomia, 8. (SBGEA)",
abstract = "The decrease of relativistic electron flux in the outer radiation
belt is observed after an Interplanetary Coronal Mass Ejection
(ICME) reaches the magnetosphere on July 19, 2016. Several dynamic
mechanisms may be involved with this variability; however, we are
interested to identify the pitch angle scattering mechanism
because we would like to understand the dynamics related to
violation of the first and/or second adiabatic invariant. Pitch
angle scattering mechanisms may occur through wave-particle
interactions. Here, we investigate the electromagnetic ion
cyclotron (EMIC) waves (0.3 Hz up to 3 Hz) and whistler-mode
chorus waves (from hundreds of Hz up to about 10 kHz) activities,
and the possible wave-particle interactions. Pitch angle
scattering mechanism may cause dropout in the outer radiation
belt, consequently can lead the particle precipitation to the
atmosphere and cause influences in a neutral/ionized atmosphere.
Different techniques are used to confirm the contribution of the
pitch angle scattering during the relativistic electron flux
dropout in the outer radiation belt observed in the study, as such
characterization of the sub-elements and obliquity of the chorus
waves, minimum resonant energy for electrons interacting with EMIC
waves and pitch angle distribution.",
conference-location = "Online",
conference-year = "22-26 mar.",
language = "en",
urlaccessdate = "20 maio 2024"
}