Results 101 to 106 of about 94,773 (106)

Properties of the whistler precursor upstream of the foreshock bubble shock: MMS observations

2021
<p>Foreshock bubbles (FBs) are kinetic phenomena that can form when a rotational discontinuity or a tangential discontinuity interacts with backstreaming ions in the Earth’s foreshock region. The scale of FBs can be up to 10 R<sub>E</sub> and the expansion speeds can be more than 100 km/s.
Mengmeng Wang, Terry Z. Liu, Hui Zhang, Shichen Bai, Quanqi Shi, Xiaoqiong Zhu   +5 more
openaire   +1 more source

First observations of foreshock bubbles upstream of Earth's bow shock: Characteristics and comparisons to HFAs [PDF]

Journal of Geophysical Research: Space Physics, 2013
Using multipoint in situ observations upstream of Earth's bow shock from the THEMIS mission, we present the first observations of foreshock bubbles (FBs) and compare them to observations of hot flow anomalies (HFAs). FBs are recently conceptualized kinetic phenomena that can form under the commonplace condition of a rotational discontinuity in the ...
Vassilis Angelopoulos, Nojan Omidi
exaly   +2 more sources

Acceleration of radiation belt electrons driven by a foreshock bubble

Foreshock transients are mesoscale structures upstream of the Earth’s bow shock and they evolve from solar wind discontinuities. Foreshock transients are commonly observed, but their impact on the radiation belt dynamics has not been studied before.
Milla Kalliokoski, Lucile Turc, Souhail Dahani, Shi Tao, Veera Lipsanen, Mirja Ojuva, Adnane Osmane, Yoshizumi Miyoshi, Tomoaki Hori, Drew Turner, Nana Higashio, Takefumi Mitani, Takeshi Takashima, Iku Shinohara   +13 more
openaire   +1 more source

A rotational discontinuity can generate both a foreshock bubble and a hot flow anomaly

Solar wind directional discontinuities can generate transient mesoscale structures upstream of Earth's bow shock, which can have a global impact on the near-Earth environment. Understanding the formation conditions of these transient structures is crucial to evaluate their contribution to solar wind-magnetosphere coupling. Hot flow anomalies (HFAs) are
Lucile Turc, Martin Archer, Hongyang Zhou, Primoz Kajdic, Xochitl Blanco-Cano, Yann Pfau-Kempf, Terry Liu, Yu Lin, Nick Omidi, Adrian LaMoury, Sun Lee, Savvas Raptis, David Sibeck, Hui Zhang, Yufei Hao, Marcos Silveira, Boyi Wang, Minna Palmroth   +17 more
openaire   +1 more source

Foreshock bubbles can modify their solar wind discontinuities enabling secondary transients to form

Solar wind directional discontinuities can generate transient mesoscale structures such as foreshock bubbles and hot flow anomalies (HFAs) upstream of Earth's bow shock. These structures can have a global impact on the near-Earth environment, and understanding their formation conditions is crucial to evaluate their contribution to solar wind ...
Lucile Turc, Martin O. Archer, Hongyang Zhou, Yann Pfau-Kempf, Jonas Suni, Primoz Kajdic, Xóchitl Blanco-Cano, Souhail Dahani, Veera Lipsanen, Shi Tao, Markus Battarbee, Minna Palmroth   +11 more
openaire   +1 more source

Multi Satellite Observation of a Foreshock Bubble Causing an Extreme Magnetopause Expansion

Journal of Geophysical Research: Space Physics
Rumi Nakamura, Ferdinand Plaschke
exaly