@Article{KogaGoSoCaWaLi:2019:DeSoWi,
author = "Koga, Daiki and Gonzalez Alarcon, Walter Dem{\'e}trio and Souza,
Vitor Moura Cardoso e Silva and Cardoso, Fl{\'a}via Reis and
Wang, Chi and Liu, Zhengkuan",
affiliation = "{Chinese Academy of Sciences} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Chinese Academy of Sciences} and {Chinese Academy of Sciences}",
title = "Dayside magnetopause reconnection: its dependence on solar wind
and magnetosheath conditions",
journal = "Journal of Geophysical Research: Space Physics",
year = "2019",
volume = "124",
pages = "2019JA026889",
abstract = "Magnetic reconnection permits topological rearrangements of the
interplanetary and magnetospheric magnetic fields and the entry of
solar wind mass, energy, and momentum into the magnetosphere.
Thus, magnetic reconnection is a key issue to understand space
weather. However, it has not been fully understood yet under which
interplanetary/magnetosheath conditions magnetic reconnection
takes place more effectively at the dayside magnetopause. In the
present study 25 dayside magnetopause reconnection events are
investigated using the Time History of Events and Macroscale
Interactions during Substorms (THEMIS) satellite observations in
order to find its dependence on solar wind and magnetosheath
conditions. It is found that the reconnection electric field is
proportional to the interplanetary electric field and inversely
proportional to the solar wind-Alfv{\'e}n Mach number and that
the reconnection outflow speed is proportional to the solar wind
Alfv{\'e}n speed and inversely proportional to the magnetosheath
plasma beta. It is also shown that the range of magnetic shear
angles for which magnetic reconnection should occur is restricted
to large shears as the magnetosheath flow direction becomes more
perpendicular to the direction of the local magnetopause normal
vector. Since these results refer to fairly typical solar
wind-Alfv{\'e}n Mach number condition, they may not necessarily
apply to more extreme cases.",
doi = "10.1029/2019JA026889",
url = "http://dx.doi.org/10.1029/2019JA026889",
issn = "2169-9402",
label = "lattes: 8026732855379621 3 KogaGoSoCaWaLi:2019:DeSoWi",
language = "en",
targetfile = "koga_dayside.pdf",
urlaccessdate = "29 mar. 2024"
}