Relativistic electron precipitation driven by mesoscale transients, inferred from ground and multi‐spacecraft platforms

AV Artemyev, XJ Zhang, AG Demekhov… - Journal of …, 2024 - Wiley Online Library
Precipitation of relativistic electrons into the Earth's atmosphere regulates the outer radiation
belt fluxes and contributes to magnetosphere‐atmosphere coupling. One of the main drivers …

The key role of magnetic curvature scattering in energetic electron precipitation during substorms

Y Zou, XJ Zhang, AV Artemyev, Y Shen… - Geophysical …, 2024 - Wiley Online Library
Energetic electron precipitation (EEP) during substorms significantly affects ionospheric
chemistry and lower‐ionosphere (< 100 km) conductance. Two mechanisms have been …

Dispersed relativistic electron precipitation patterns between the ion and electron isotropy boundaries

AV Artemyev, V Angelopoulos, XJ Zhang… - Journal of …, 2023 - Wiley Online Library
Relativistic electron precipitation to the Earth's atmosphere is an important loss mechanism
of inner magnetosphere electrons, contributing significantly to the dynamics of the radiation …

The Principal role of chorus ducting for night‐side relativistic electron precipitation

N Kang, AV Artemyev, J Bortnik… - Geophysical …, 2024 - Wiley Online Library
Night‐side chorus waves are often observed during plasma sheet injections, typically
confined around the equator and thus potentially responsible for precipitation of≲ 100 keV …

Picturing global substorm dynamics in the magnetotail using low‐altitude ELFIN measurements and data mining‐based magnetic field reconstructions

X Shi, GK Stephens, AV Artemyev, MI Sitnov… - Space …, 2024 - Wiley Online Library
A global reconfiguration of the magnetotail characterizes substorms. Current sheet thinning,
intensification, and magnetic field stretching are defining features of the substorm growth …

Unusual magnetospheric dynamics during intense substorm initiated by strong magnetospheric compression

VA Sergeev, MV Kubyshkina… - Journal of …, 2023 - Wiley Online Library
We investigate an unusual sequence and peculiar features of magnetotail changes during a
storm‐range substorm initiated by the interplanetary shock. Auroral observations and …

Key factors determining nightside energetic electron losses driven by whistler‐mode waves

E Tsai, A Artemyev, Q Ma, D Mourenas… - Journal of …, 2024 - Wiley Online Library
Energetic electron losses by pitch‐angle scattering and precipitation to the atmosphere from
the radiation belts are controlled, to a great extent, by resonant wave particle interactions …

Nonresonant scattering of energetic electrons by electromagnetic ion cyclotron waves: Spacecraft observations and theoretical framework

X An, A Artemyev, V Angelopoulos… - Journal of …, 2024 - Wiley Online Library
Electromagnetic ion cyclotron (EMIC) waves lead to rapid scattering of relativistic electrons
in Earth's radiation belts, due to their large amplitudes relative to other waves that interact …

Investigating whistler‐mode wave intensity along field lines using electron precipitation measurements

E Tsai, A Artemyev, V Angelopoulos… - Journal of Geophysical …, 2023 - Wiley Online Library
Electron fluxes in Earth's radiation belts are significantly affected by their resonant
interaction with whistler‐mode waves. This wave‐particle interaction often occurs via first …

Electron precipitation driven by EMIC waves: Two types of energy dispersion

VS Grach, AV Artemyev, AG Demekhov… - Geophysical …, 2024 - Wiley Online Library
Electromagnetic ion cyclotron (EMIC) waves can very rapidly and effectively scatter
relativistic electrons into the atmosphere. EMIC‐driven precipitation bursts can be detected …